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Location Of Relays And Electronic Controls In

Porsche 928 Fuse And Relays Diagram

The central fuse relay plate is accessible after removal of a cover in footwell of front passenger's side. Relay for electric seat's forward movement is located underneath the seat on the adjusting frame. Fuses are numbered consecutively from left. 1o right and are designated S 1 through S 34 on the current flow diagram. S3- License plate light, engine compartment light S 4 - Switch light fog headlights, tail fog light, hazard light switch, rear window-wiper, rear window defogger , light for...

Removing And Installing Door Window And Regulator

Porsche Window Regulator

Adjust door window door trim panel removed , that slides on guide tube are accessible. 2. Now unscrew slides and detach window lifting tube at top. 3. Pull off inside window recess seal, then tilt and remove door window glass. Unscrew or detach guides arrow in upper door recess to improve accessibility see figure to right . 4. Unscrew window regulator from inside door panel arrows , pull off electric wire plugs from motor and remove window regulator through large opening in inside door...

Checking Transmission Operation

Special Tool Sporsche 928

Prior to making repairs on an automatic trans- B - Transmission Fluid Level mission, troubleshoot transmission as instructed below and with help from the following tests. B - Transmission Fluid Level The specified fluid level is extremely important for proper operation of automatic transmission, so that following test must be carried out with great care. All jobs, which require that engine runs, should only be carried out with selector lever in N or P and parking brake applied. Exceptions...

Testing the engine temperature sensor

Fuel Line Repair 911 Porcshe

The switching point must be just before full njtjon Qfi Disconnect plugs from the EZK control unit and the LH control unit. Connect an ohmmeter between terminal 13 and terminal 5 on the LH control unit plug. Short-circuit to ground Short-circuit to positive Break in the circuit Defective engine temperature sensor In the event of an error, check with reference to the circuit diagram. When measuring the resistance of the engine temperature sensor, always measure between the contact lug and the...

Rear torsion bar setting

Dixon Commercial Mower Drive Belt

If torsion bars are replaced or reset, it is strongly recommended that the vehicle balance weight be checked at all four wheels using suitable wheel-load floor scales. See 440 Wheels, Tires, Alignment for more information. The initial position of each rear torsion bar is set by measuring torsion plate inclination in its unloaded position. With car close to ground level, use floor jack under trailing arm to relieve suspension load on shock absorber. Brake backing plate shown removed for clarity....

Crankshaft sensors removing and installing

Reference Sensors 1979 Porsche 911

Pull out connector locking plate at sensor connectors in left side of engine compartment. Detach one or both black connectors. Remove reference or speed sensor mounting bolt using a 5 ' If the sensor is seized in the mounting bracket, remove bracket mounting bolts arrows . Remove bracket with both sensors to work bench and replace sensor s as needed. Once bracket has been removed, sensor clearance gap must be reset as described below. When installing sensor mounting bracket, position sensor...

Adjusting kickdown switch

Blend Door Actuator Location

The idle position of the accelerator cable must be correctly adjusted. Kickdown switch in installation position. 2. Unhook pushrod from accelerator pedal. 3. Switch on system tester and select throttle valve in DME actual values menu. 4. With the pushrod unhooked, push the accelerator pedal down to the stop throttle valve open up to stop and read throttle position 1 off on system tester. With the throttle valve open accelerator pedal fully depressed , the position is 84 30. 5. Hook pushrod back...

Airbag Special Tools 9516 and 95161

If a fault is indicated in ignition pill circuit 1, 2 or 3 during diagnosis, the respective fault can be identified using Special Tools 9516 and 9516 1 If a fault is indicated on an ignition pill circuit, erase the fault memory and connect Special Tool 9516 to the plug-In contact on the airbag unit. After switching on the ignition the warning lamp will show whether the fault is still present or not. a in ignition pill circuit 2 or 3 passenger side the cable harness complete with control unit...

Diagnosis Troubleshooting

The airbag system is continuously monitored by a diagnosis unit in the control unit. If a fault occurs, it is indicated by a warning lamp in the instrument cluster. In the event of a fault, the central warning lamp and this warning lamp come on. In cars for the USA, the fasten seat belts symbol also lights up. If non-activated airbag units have to be removed, they must be ignited electrically before being disposed of see Page 68-15 . The airbag warning lamp comes on for ap- prox. 5 seconds when...

Checking and assembly operations on the power steering system

Porsche 993 Engine Compartment

Damage to the power steering can be traced to lack of oil in the hydraulic system. Due to the high system pressure in the hydraulic cicuit, even minor leaks may cause fluid loss and damage to the power pump. Grunting noises when turning the steering wheel or foaming in the reservoir are indicative of lack of oil and or air drawn in. Before topping up the reservoir, however, repair any leaks remaining on the intake side and replace the defective part on the pressure side. Checking the steering...

Rear wheel bearing removing and installing

Remove Rotor Drive Shaft

Wheel bearing replacement can be performed by removing the rear trailing arm as described earlier and pressing the bearing out on the bench. The following procedure describes utilizing a special bearing removal and installation tool that eliminates the need to remove the trailing arm from the car. Apply parking brake and shift transmission into reverse. Remove wheel hub center cap. Loosen stub axle nut 32 mm socket wrench through opening in center of wheel. Loosen rear wheel lug nuts. Release...

Porsche 911 Hydraulic Diagram

Wiring Diagram Bosch Abs

This manual describes testing procedures and serves as a troubleshooting guide for the ABS systems installed in Porsche 928 and 944 series vehicles. The troubleshooting program consists of two test plans. Test Plan No. 1 is required for testing procedures using the Bosch K7-ETT 016.00 or VAG 1516 ABS Testing Unit. Test Plan No. 2 is required for testing procedures using the Bosch ABS-2-LED Testing Unit. Both testing units can be used for all Porsche vehicles fitted with ABS. The testing program...

Diagnosistroubleshooting convertible top

Porsche 996 Convertible Roof Parts

99661D14 Printed in Germany - 11, 1998 Fault, Fault code_Possible causes, elimination, notes If the convertible top is in the forward position diagram on closing check the response of the micro-switch - unlocked or not unlocked small diagram - in the convertible-top latch. If the micro-switch is defective, replace the convertible-top latch. If the convertible top is in the rear position diagram on opening, check the response of the micro-switch - unlocked or not unlocked small diagram - in the...

Balancing Seat Heating

- Voltmeter with internal resistance equal to or greater than M i2 with max. 2 mm dia. test probes - Connecting lead made locally Balancing requires connection of the removed seat on battery voltage terminals 15 and 31, see wiring diagram . - The seat being balanced should be left in the workshop so long, until it has reached the ambient temperature. - Connect seat on battery voltage. Do not switch on seat heating I If heating is switched on by mistake, let the seat cool off again until its...

Disassembling and assembling gearbox

Synchronizing Gear Box Assemble Photos

911 Carrera 4 Manual Transmission, Controls, Case 911 Carrera 4 Manual Transmission, Controls, Case Notes on disassembling and assembling 1. Pull cylindrical-roller bearing and needle-bearing sleeve from the hollow shaft with Special Tool 9284. Always use Special Tool 9284. If the drive pinion is used as a support, this may cause damage to the gear wheels in the transmission. 1. Adjust shift fork for 5th and reverse gear Secure hollow shaft with Special Tool 9286 and or 9286 1. Insert shim s...

Specs For Ignition Coil On 924s

1977 Porsche 924 Coil Wiring Diagram

Observe the following safety measures to avoid damage The high voltage lead must be fitted with a shield-while working on TCI-H ignition systems. ing sleeve of at least 2 k-ohms. 1. Only connect and disconnect testers and leads with ignition turned off. 2. Spring retainers of removed distributor and dust caps must not hang in sensor system while cranking engine. 3. Never connect a capacitor on the ignition coil. 4. Specified ignition coil must not be replaced with a conventional ignition coil....

Removing And Installing Engine

Porsche 928 Air Filter Direction

Use fender and bumper protective covers. 2. Disconnect battery ground cable at spare wheel well. 5, Detach windshield washer hoses and engine compartment light wires. 6. Disconnect engine hood supports at top, loosen engine hood bolts and remove engine hood. 7. Remove cap from coolant expansion tank. 8. Remove air intake hoses and entire air cleaner assembly. 9. Raise car. Place piece of wood (locally manufactured) on central tube and rear tunnel brace. 3. Loosen and remove engine compartment...

Installing convertible top fabric and roof liner

Installing Convertible Top

Before installing the convertible top fabric and the roof liner, the adhesive bonding points must be cleaned. Check all screws for tightness. If necessary, tension the auxiliary bow. No. Operation Instructions Screw the three holders to the tack strip. Zip the rear window into the convertible top fabric use a provisional window, if one is available . Cover the main bow with an adhesive tape, thickness about 1 cm, and apply adhesive up to the first Prepare convertible top fabric Apply adhesive...

Location Of Relays And Fuses In The Vehicle Effective With 1 9 7 4 Models

Warm Regulator Porsche 911 Relay

Beginning with 1974 models, the fuse box is located on the left side panel of the luggage compartment near the brake fluid reservoir. The plastic cover can be removed from the fuse box by lightly pressing its top downward. The fuse box contains 18 fuses and, depending on options. 1 to 3 standard relays. Mounting space for 4 additional relays has been provided for possible expansion of the electrical system. A fuse listing is contained in the wiring diagrams. The fuses are identified in the...

Removing And Installing Rear Side Trim Panel

Porsche 928 Speaker

Disconnect and remove luggage compartment cover, tool plate, floor mat, spare wheel cover, edge guard on B pillars, parking brake cable cover, emergency seat cushions and backrests. 2. Remove seat belt on side member and seat well at outside arrows . 6. Make sure trim panel engages in proper holders in area of wheei house. 3. Remove escutcheon for seat belt and grab handle arrows . 4. Remove screws arrows and pry off trim panel at top with a suitable tool clips and pull forward slightly....

Porsche 928 Psd Abs Failure

Vehicles with PSD Printed in Germany XXXV, 1995 Possible fault displays via system tester 9288 DTC Fault type System allocation 11 Transverse lock valve PSD 12 Lateral acceleration sensor - PSD short circuit discontinuity 13 Lateral acceleration sensor - PSD signal implausible 14 Transverse lock - deviation PSD 15 Control unit - defective ABS PSD 21 Wheel speed sensor, front left ABS PSD 22 Wheel speed sensor, front right ABS PSD 23 Wheel speed sensor, rear right ABS PSD 24 Wheel speed sensor,...

Front brake rotor removing and installing

1975 Porsche 911 Front Disk

Use a micrometer to measure rotor thickness at eight to ten positions on rotor braking surface. Rotor runout should be measured using a dial indicator setup. If a low speed shimmy goes away when the brakes are released, excessive rotor runout is probably the cause of the shimmy. If the rotor's runout is within limits, and the shimmy still persists, check the front wheel bearings as described in 401 Front Suspension. Brake rotors can be resurfaced by most local automotive machine shops. Always...

Disassembling And Assembling Chain Tensioner

Clamp chain tensioner in a vise and remove upper circlip. 2. Remove spring retainer and spring. 3. Remove bleed screw and sealing ring. 4. Pull out aluminum piston carefully with a suitable tool. 1. Clean parts thoroughly, check for wear and replace if necessary. Inspect piston spring for wear and deformation bent , replacing if necessary. Push chain tensioner piston with mounted aluminum piston, without O-rings, into chain tensioner housing. Both pistons must move easily. It is especially...

Ignition components testing

Ignition Schematic 911 Carrera

Primary coil resistance is measured with an ohmmeter between terminals 1 and 15. Measurement of secondary resistance is between terminals 4 and 15. Replace a coil which does not meet specifications. Correct values are in Table b. Check resistance of each spark plug end connector as well as wire itself. To test connector, use ohmmeter probe on both ends. Test shielded ends of coil and spark plug wires at distributor cap and coil using same method. To avoid damaging the distributor cap, do not...

Fluid And Lubricant Specifications

Porsche 911 Oil Plug Torque Spec

Engine oil viscosity SAE grade vs. operating temperature range shown for the Porsche engine covered in this manual. The fluids and lubricants specified by Porsche are listed in Table e. The use of fluids that do not meet Porsche's specifications may impair performance and reliability, and may void warranty coverage. 3.0 L 3.2 US qt. 3.4 L 3.6 US qt. Synthetic manual transmission fluid is not approved by the manufacturer, but its use may result in improved transmission performance and wear...

Removing and installing rear speed sensor

Porsche 993 Speed Sensor

With the ignition switched off, open the connector assembly on the wheel carrier and unplug the connector for the speed sensor. 2. Unscrew the mounting bolt (Allen bolt) and remove the speed sensor. 1. Apply Molykote Longterm to the speed sensor and the hole in the wheel carrier. Caution There is no O-ring between the speed sensor and the wheel carrier. In addition, the front and rear speed sensors must not be confused with each other. Otherwise, the blade of the speed sensor will be offset 90...

Transmission reassembling 915 transmission

Before assembly clean and check all parts to be sure they are in good operating condition. Lay parts out in order of assembly on a work bench. Install shims arrow on differential housing studs. NOTE Unless the pinion bearing is being replaced or repairs have been made to the differential, install the same shims that were removed during disassembly. If the differential bearing is replaced or repairs have been made to the differential, special differential setup procedures must be carried out....

Cylinder head temperature sensor testing

Porsche Head Cylinder Temperature Sensor

The cylinder head temperature sensor arrow is installed in cylinder head 3. The cylinder head temperature sensor signal is the main temperature signal to the ECM. Table j. Cylinder Head Temperature Sensor Resistance Specifications 15 - 30 C 60 - 85 F 40 C 105 F 80 C 175 F 100 C 212 F 130 C 265 F 4.4 - 6.8 k 2 1.4- 3.6 k 2 1.0-1.3 k 2 250 - 390 2 160-210 2 90 2 Disconnect harness plug from white connector on left side of engine arrow . Connect ohmmeter across white connector terminals....

Troubleshooting Central Warning System

The central warning system monitors the following 1 9 7 8 Models Any deviation from specified condition or a defect will be displayed by the central warning lamp flashing or coming on, depending on priority, the acknowledgement button and the pertinent indicator lamp. Beginning with 1979 models the acknowledgement button comes on together with the central warning lamp. The central warning unit contains a bulb check function to check the light bulbs. All indicator lamps, the central warning lamp...

Calibrating convertible top

Calibration of the Cabriolet convertible top and the convertible top compartment lid is carried out with the Porsche System Tester 2 diagnosis. The respective potentiometer values convertible top and convertible top compartment lid are established during calibration. If the potentiometer values are plausible, the values are The calibration values can then be calculated as a percentage by the convertible top control module from the potentiometer values. The following preconditions must be met in...

Engine Disassembly and Assembly

911 Engine Diassembles

ENGINE, DISASSEMBLY 102-2 Engine peripherals, removing 102-4 and camshafts, removing 102-8 cylinder heads, removing 102-12 Pistons and cylinders, removing 102-13 Crankcase, disassembling 102-14 Crankshaft, disassembling 102-16 ENGINE, ASSEMBLY 102-17 Crankshaft, assembling 102-18 Crankcase, assembling 102-19 Pistons and cylinders, installing 102-25 Cylinder heads, installing 102-27 Camshaft cases, camshafts and camshaft timing chains, installing .102-28 Camshaft timing, adjusting 102-31 Engine...

Windshield Wipers and Washers

Windshield Wiper Fillers

Wiper blades 920-1 Wiper blade symptoms and fixes 920-1 Wiper blades, replacing 920-2 Wiper blade inserts, replacing 920-2 Wiper arms, removing and installing 920-3 WINDSHIELD WIPER ASSEMBLY 920-3 Windshield wiper assembly, removing and installing 920-3 washer system 920-5 removing and installing 920-5 removing and installing 920-6 removing and installing 920-6 Windshield wiper washer switches 920-7 Intermittent wiper action switch, removing and installing 920-7 This repair group covers...

Door panel removing and installing

Remove Door Panel Porsche 911

Remove trim screw and trim piece right arrow at front door edge. Remove two screws behind trim piece. Pry off concealing plug at rear of trim panel and remove screw behind plug left arrow . Remove upper trim panel by lifting up and over door lock pin. Pry off cover from door lock knob arrow . Remove knob mounting screw and knob. Remove lock knob trim by turning counterclockwise Remove screws from map pocket perimeter arrows and remove carpeted map pocket. Remove two screws from pocket door...

Electrical component locations

1984 Porsche 911 Trunk

The fuses, relays and control modules are located in various locations throughout the vehicle. Refer to the component location photos and tables in this repair group for electrical component locations. Replace fuses with those of the same rating. Installing a fuse with higher rating can lead to circuit failure and may also start a fire. Relay fuse positions vary by model and equipment. Fuses no. 1 -21 and are mounted in the front fuse relay panel located in the luggage compartment. There are...

Service Training Center

Sun Engine Motor Tester 1010

Porsche Precautions for Working on Electronic Ignition Systems 0 - 02 Testing Requirements EZK and LH - 03 Relay and Plug Connections on CEL - 02 Plug Connections - Control Unit - 03 Plug Connections - Control Unit EZK -04 Wiring Diagram for 928 S 4 Engine Electrical System 05 1. Ground Points Plug Connections - EZK and -07 2. Power Supply for EZK Control Unit 12 3. Speed and Reference Mark -14 4. Temperature Sensor II -15 5. Throttle Valve Switch for Idle Spped...

Porsche 968 Air Bag Fault 10 Ignition Circuits

Interface Obd Connecteur Porsche 944

The control unit needs approx. 70 seconds to identify all faults in the system, and the ignition must therefore be switched on for at least this time to ensure that all poosible sources of defects can be checked. After a fault in the airbag system has been identified and rectified, the fault memory must be erased. Following an accident in which the airbag system was activated, the following components must be removed and replaced If non-activated airbag units have to be removed, they must be...

Testing ABS in 911 Carrera 4 with ABS 2LED Tester Important information on ABS of 911 Carrera

Bosch 9288 Tester

If any work is carried out on the hydraulic unit, speed sensors or cable harness, or if any units are replaced, e.g. during accident repairs, a function check with the ABS Tester must be performed. This prevents any mixing up of the electrical and hydraulic lines and ensures that the hydraulic unit functions correctly. 2. If a fault is indicated during operation without any prior assembly work , diagnosing and troubleshooting with System Tester 9288 is possible. In this case select system...

Adjusting Idle And Co

Porsche 928 Air Cleaner Straps

Detach air hose at diverter valve and insert a suitable plug. 6. Connect CO level tester and separate tachometer according to instructions of manufacturer. 6. Connect CO level tester and separate tachometer according to instructions of manufacturer. Engine in perfect mechanical condition. Ignition timing set correctly. Adjustments must be made as quickly as possible, to prevent excessive heat in the intake ports. 4. Install air cleaner upper section and air intake hose. 5. Run engine to...

Dismantling and assembling input shaft Tools

993 Porsche Main Shaft

Dismantling and assembling input shaft 911 Carrera 2 Manual Transmission - Gears, Shafts Undo with Special Tools 9177 and 9105 Use Special Tools 9177 and 9105. Torque 250 Nm 183.25 ft.lb . Punch collar to lock Press off with suitable tool e.g. Kukko 17-1 over 2nd gear fixed wheel Heat to approx. 120 C and press on with suitable pipe section Press off with suitable tool e.g. Kukko 17-1 over 2nd gear fixed wheel Heat to approx. 120 C and prvjss on with suitable pipe section Mount in vice fit...

CV joint and boot removing and installing

Axles For Electric Car

On all but 1984 models only the inner CV joint is replaceable separately. The outer joint must be replaced with the axle shaft. Remove axle shaft assembly as described earlier and place in shop vice with soft jaws. Cut off small and large CV boot clamps. Drive off dust cover and boot flange with punch arrows . Slide flange and boot away from inner CV joint. 1. Small clamp 5. Concave washer install with 2. CV joint boot concave facing CV joint 3. Large clamp 6. CV joint Boot flange 7. Inner dust...

Removing And Installing Clutch

Porsche 928 Lower Body Brace

Disconnect ground strap at battery. 2. Jobs required additionally beginning with 1984 models Remove TDC sensor on clutch housing by taking off air cleaner, loosening screw and pulling TDC sensor out of clutch housing. On cars with LH-Jetronic pull speed reference mark sensor for electronic ignition out of crankcase upper section while turning back and forth, after loosening the screw. 4. Unscrew clutch slave cylinder, remove clamp on clutch hose holder and take out cylinder with line...

Electric wiring diagram Part I Type 911 T 911 E 911 S Model

18 Turn signal, parking and side marker iights 19 Tail, stop, turn, back-up and side marker lights 30 Flasher, dimmer, wiper washer switch with horn ring on steering column 31 Ignition starter switch and steering lock not applicable in Italy and France 37 Switch for luggage compartment light Stop light switch 42 Switch for glove compartment light 48 Turn signal emergency flasher unit 50 Headlight relay 84 Multi-connector 14 terminal 85 Multi-connector 6 terminal 87 Connector single contact 89...

Operating the measuring instrument

Circuit Lubrification Turbo Porsche 996

Prepare measuring instrument for testing 3 Position measuring instrument Lower pointer into measuring instrument. Grasp rubber strap between thumb and index finger. Position measuring instrument in center between pul- The lateral stop of the instrument must rest on the side Press pushbutton to apply uniform pressure in perpendicular direction on top of V-belt until the detent spring can be heard or felt to disengage. After the detent spring has disengaged, the measuring instrument or the...

Engine Management General

Iat Sensor

GENERAL 200-1 DME engine management system 200-1 Principles of operation 200-3 Fuel supply and fuel delivery 200-3 Volume air flow sensor 200-4 Cylinder head temperature sensor 200-5 Reference and speed sensors 200-5 Throttle position switches 200-6 Altitude correction switch 200-7 Oxygen sensor 200-7 Idle speed control 200-7 DME main fuel pump relay 200-8 Ignition timing 200-9 Emission DRIVEABILITY TROUBLESHOOTING .200-10 Mechanical condition 200-11 Preventive maintenance 200-12 Valve Basic...

Porsche 911 Battery Voltage At Terminal 15 To Ground

Ballast Resistor 1977 Porsche 924

Check distributor cap, distributor rotor, ignition lines and spark plugs Warning ignition off . Resistance of spark plug wire including connector approximately 6 k Ohm Resistance of distributor rotor approx. 5 k Ohm 3. Check ignition timing Timing good 5. Check ballast resistors and ignition coil Ignition off, wires disconnected at resistors and ignition coil Ballast resistor 0.4 Ohm 0.35 to 0.45 Ohm Ballast resistor 0.6 Ohm 0.55 to 0.65 Ohm Ignition coil primary between terminals 1 and 15...

Porsche 924 Turbo Ignition Timing

924 Turbo Ignition Wiring Diagram

The diagram shows the basic ignition timing curve verses engine speed, without the ignition timing changes which result from input from the pressure sensor and intake air temperature sensor. To make starting easier, the ignition timing is relatively retarded during engine cranking. As the engine starts, the timing is advanced quickly and then retards as the engine approaches idle speed. If the idle speed drops e. g. when switching on electrical equipment or the air conditioner , the timing is...

Charging system troubleshooting

1984 Porsche 911 Wiring Diagram

Charging system trouble is indicated by an illuminated alternator warning light on the instrument panel, or by an under-or overcharged battery. The alternator generates electrical current by electrical induction. That is, a magnetic field is placed in motion to induce a current in a stationary coil. When the engine is running and the alternator is spinning, part of the current it produces energizes its electromagnetic field. When starting, some other current must be provided to initially...

Door window adjusting Targa and Cabriolet models

Porsche 928 Door Panel

Whenever the window regulator is removed, the window adjustment should be checked. The glass should contact the top of the window frame squarely and should seat against the window seal uniformly. If the window stop is not adjusted correctly the door may become hard to close or wind noise may be a problem. The window regulator used in the targa and convertible uses to stops for setting window travel. Remove door trim panel. See 570 Doors. Lower window until stop bracket is aligned with access...

Starter removing and installing 1987 to 1989 models

Porsche 911 Engine Bottom

Disconnect negative - battery cable and cover battery terminal to keep cable from accidentally contacting terminal. Raise vehicle to gain access to bottom of engine. Make sure the car is stable and well supported at all times. Use a professional automotive lift or jack stands designed for the purpose. A floor jack is not adequate support. Working underneath car, push back rubber boot covering shift linkage. Loosen hex bolt arrow and pull shift rod out of shift coupler. Unbolt stabilizer bracket...

Removing and installing driver airbag unit

993 Porsche Ignition Unit

Disconnect battery and cover battery or battery terminal, respectively. 2. Undo fastening screws 2 ea. with a Torx T 30 socket screwdriver. Replace the self-locking nuts whenever they have been released, undoing the retaining plate of the airbag unit 4 screws in the steering wheel. When stowing away the airbag unit, make sure the padded side faces up. The airbag unit must be stored in a safe place when it remains removed for longer periods. Observe safety precautions. Tightening torque for...

Replacing part of door sill with side member and floor pan

Porsche 928 Chassis Cut Body

The following body spare parts are required for this sectional repair A Floor pan center B Side member center C Web panel Replacing part of door sill with side member and floor pan Cutting part of door sill with side member and floor pan out of body Replacing part of door sill with side member and floor pan Cutting part of door sill with side member and floor pan out of body Remove all ancillaries and accessories, including the interior, from center body area and front fender area Place vehicle...

Idle speed control valve testing

Porsche 964 Idle Speed Control Valve

The idle speed control valve controls the amount of air allowed to bypass the throttle to increase or decrease idle speed. Whenever the idle position switch is closed, the valve is in operation. Listen and feel for valve vibration or humming. If valve is not operating, check that idle switch is operating correctly as described above. If valve is functioning but idle speed is erratic, check valve as described below. Remove two hoses A and electrical harness connector C from valve. Remove...

Removing And Installing Rear Spoiler

Capteur Temp Rature Air Porsche 928

1.Using new screws, attach hinges to spoiler. 2.To protect paintwork, cover tailgate with adhesive tape. l.Open tailgate, remove spoiler securing screws and lift spoiler off tailgate. 2.Place spoiler on a soft surface, unscrew securing screws from hinges and remove hinges from spoiler. Printed in Germany - XIII, 1986 Removing and Installing Rear 66 - 25 4.When the new adhesive membrane is applied, the holes in the membrane must align exactly with the holes in the tailgate. 6.To adjust,...

Adjusting Idle Speed And Co

Djet Aux Air Valve Rebuild

Engine in perfect mechanical condition. Make adjustments as quickly as possible to avoid excessive heat in intake ports and consequently wrong CO values. 2. Disconnect auxiliary air pump hose on air pipe and insert a suitable plug in open air pipe e. g. rubber grommet for doors, Part No. 999.703.163.40 . 4. Run engine to operating temperature oil temperature approx. 80 to 90 C 176 to 194 F . Use Special Tool 9122 to measure oil temperature. Intake air temperature 15 to 35 C 59 to 95 F. 5....

Test point 0 K and L wire

Connecteur Prise Obd Porsche 968

The diagnostic connection between the Tiptronic control unit and the tester is made across the K and L wires. If it is not possible to start the diagnosis with the System Tester 9288, the following checks should be made 1 Check adapter lead 9288 1 for continuity - Check K and L wire at adapter lead 9288 1 for continuity. Socket 3 8-pin connector to pin 7 19-pin connector Socket 7 8-pin connector to pin 8 19-pin connector Bushing 3 L wire Bushing 7 K wire - Check ground and terminal 15 at...

Diagnosable Tiptronic control unit

A self-diagnosis feature with fault memory is built into the Tiptronic control unit to allow certain faults within the electronic control system of the Tiptronic to be detected and to be stored. To prevent detected and stored faults from being erased when the ingition is switched off, a permanent positive voltage is present at the control unit. Detected faults remain stored in the fault memory for at least 50 starts of the engine. Caution If the connector is pulled off the Tiptronic control...

Operating instructions for System Tester 9288

Porsche 944

The Systemtester 9288 BOSCH KTS 301 is a microprocessor-controlled self-diagnosis tester. All systems which have a diagnosis Interface as per ISO Standard can be tested with this tester. The following tests are possible Reading out the fault memory Sensor and status checks, tire-pressure monitoring RDK The Systemtester 9288 is a high-quality piece of electronic equipment. In order to prevent damage to the equipment as a result of improper use, please read the information in the operating...

Wiring Diagram Type 944944 turbo 944 S Model 87

Porsche 944 Electrical Schematic

The wiring diagram consists of 14 individuat wiring diagrams. These are divided into coordinate fields. Each individual wiring diagram contains a part of the central-electrics box in a dash-dotted frame. This part of the central-electrics box shows all the lines and relays necessary for the individual wiring diagram. The earth ground points are identified by MP and their location is shown in a vehicle diagram. The 20-pin connectors on the central-electrics box are clipped together out of 5...

Fuel injectors testing

Porsche 911 Speed Switch Testing

The injectors are turned on and off by the DME engine control module ECM . The quantity of fuel delivered to the engine is determined by the amount of time the injectors remain open. Injectors tests include electrical checks for resistance, power and ground signal from the ECM. Injector flow tests require specialized equipment that opens each injector for a precise amount of time to measure fuel delivery. Most authorized Porsche dealers can perform an injector balance test to locate clogged or...

Removing And Installing Fuel Cooler

Jetronic Porsche 928 1982

Discharge air conditioner as described in Group 87 of Repair Manual 928. Conform with safety precautions for handling refrigerants. a First unscrew right refrigerant line coupling completely, while holding on hexagon of line. b Unscrew both fuel line connections on fuel cooler, while holding on cooler each time. c Unscrew bracket for fuel cooler. d Unscrew left refrigerant line coupling, while holding on hexagon of line. 3. Take off upper air cleaner housing and filter element. Pull off hose...

Electric motor for backrest adjustment

Changing Porsche Lumbar Switch

The backrest is adjusted by an electric motor with transmission. A Hall-effect sensor is integrated into the electric motor which measures the actual position. Manual adjustment of the seat positions is carried out by actuating the three switches located on the driver's seat front seat . 1,2,3 - Fore-and-aft adjustment and height adjustment are carried out by actuating the switch in the positions shown in Figure 615_98 4 - The seat backrest can be brought into desired position by actuating the...

Checking Distributor In

Porsche Turbo Ignition Unit

Turning distributor shaft sends an alternating current signal to the CDI control unit. This alternating current signal which increases with engine speed, triggers the control unit to release ignition spark. Distributor operation can be checked by measuring alternating current. Never make changes on soft iron teeth of rotor or stator. Disconnect 2-pole plug connector at wire from distributor to engine harness. 2 Connect a multipurpose tester to the plug and adjust it to measure AC voltage. If...

Adjusting drive set frontaxle drive

Meritor Axle Nut Number 517

Adjusting drive set front-axle drive Tools 911 Carrera 4 Differential, Transaxle System Adjusting drive set front-axle drive Practical procedure when readjusting the drive set If it is necessary to adjust drive pinion and ring gear, following this sequence will ensure an efficient working procedure 1. Determine total shim thickness Stot Si plus S2 for specified preload of tapered-roiler bearing differential. 2. Determine shim thickness S3. 3. Determine bearing pressure S4. 4. Split total shim...

Troubleshooting Automatic Transmission

Note If transmission oil is black and smells burnt or there is an unusual large amount of metal burrs in oil pan, either repair or replace transmission. Condition Transmission slips in all selector lever positions Correction 1, Check modulating pressure, adjusting if necessary. If not adjustable, check movement of modulating pressure control valve. Clean modulating pressure safety valve in shift valve housing upper section, 2. Check whether vacuum line from intake branch to vacuum box is...

Axle shaft assembly removing and installing

Gear Wheel M20

Apply parking brake and shift transmission into reverse. Remove wheel hub center cap. Loosen stub axle nut 32 mm socket wrench through opening in center of wheel. Loosen rear wheel lug nuts. Release parking brake and shift transmission into neutral. Raise rear of car and support it securely. Make sure the car is stable and well supported at all times. Use a professional automotive lift or jack stands designed for the purpose. A floor jack is not adequate support. Remove rear wheel. Remove stub...

Sealing the camshaft housing sealing face

Porsche 993 Engine Camshaft

Loctite 574 hardens only when contact with metal is made and air ingress is prevented. After having applied the sealant, bolt up the crankcase sections within approx. 10 minutes since the sealant bead applied directly to the metal surface will otherwise start to cure. In case of repairs, the old sealant coat must not necessarily be removed. It is sufficient to de-grease the surface and apply the new coat of sealant after the solvent has evaporated. New Loctite will soften the old sealant...

Engine Removal and Installation

Saab Brake Line Flanged Ends

Special REMOVAL AND INSTALLATION 101-2 Engine transmission, removing 101-2 Engine transmission, installing 101-10 Engine transmission, separating and rejoining 101-15 ENGINE TRANSMISSION MOUNTS . . .101-16 Engine mount, removing and installing 101-16 915 Transmission mount, replacing G50 This repair group covers engine removal and installation. The complete engine transmission assembly is removed as a single unit through the bottom of the engine bay. Removal and installation of the engine...

Distributor cap and ignition rotor removing and installing

Ignition Timing 911

It is recommended that the cap and rotor be replaced as a set during a major maintenance. To replace cap and rotor, use flat-tipped screwdriver to press down and turn cap hold down pins Va turn each. If replacing cap, temporarily leave spark plug wires in old cap. Mount new cap on distributor and lock both pins. Change over one spark plug wire at a time from old cap to new cap. To avoid damaging the distributor cap, do not wiggle the connectors when removing the spark plug wires. If necessary,...

Removing and installing immobilizer control unit

Porsche 993 Immobilizer Connector

Remove shear bolts using a cross cut chisel and remove cover. 3. Loosen control unit and unplug connector. Installation shear bolts, part no. 999 074 051 02 using a Removing and installing control unit of RS Loosen flanged nut using a cross cut chisel. Installation Tighten new M5 flanged bolt with stop teeth part no. 999 507 472 02 using circlip pliers, Tighten the control unit carefully. The plastic mounting lugs can break off. The serial number must not be left on the control unit after...

Instruments Consumption indicators Burglar alarm

Remove Porsche 944 Dme

Fuel consumption indicator, upshift Troubleshooting - fuel consumption Troubleshooting - upshift Relay arrangement, Model 84 Fuses in central electric system, Model 84 onward 90-7 Fuses in auxiliary fuse box, Model 84 onward 90-8 Instrument cluster, Model 85 2 onward 90-9 Instrument cluster, removing and installing, Model 85 2 onward 90-13 Sensor for speedometer, removing and Checking instruments . Checking burglar Checking auxiliary control unit, burglar alarm 90-20 Retrofitting radio in...

Function of individual components 1 Control module

The control senger's If the contro points must module is installed on the pas below the passenger's airbag unit, module is replaced, the following be observed If a new confrol module is installed, fault codes 6 Control unit coding error and 7 Calibration not performed yet are stored. Start the automatic control module search and code the vehicle type. Then perform a calibration and then erase the fault memory. Adjust the The HBA system is activated when the parking light is switched on terminal...

Diagnosis troubleshooting alarm system

Porsche 964 Alarm Unit

The alarm control unit is diagnosable. It can be read out only with System Tester 9288. The menu includes the following functional groups. For some of the faults, two types of causes must be distinguished - The fault displayed is an actual fault that has to be remedied. - The fault displayed is a fault condition that has been caused deliberately, e.g. by leaving the open glove compartment open. Troubleshooting requires that the person performing the tests - is familiar with the location of...

Engine removal and installation 101

Porsche 911 Engine Crossmember Bolts

Loosen inner constant velocity CV joint bolts arrows from differential drive flanges left side shown . Suspend shafts from body with mechanic's wire. On 1984 and early 1985 models cover CV joints with a plastic bag and tape bag to CV joint shaft to keep dirt out of the joints. Remove left and right heater hoses from heat exchanger connector. Lower vehicle until weight of engine transmission assembly engine is supported by hydraulic support or equivalent. If using a floor jack, raise it as much...

Removing And Installing Outside Mirror

Standard Socket Wrench Inside Dimensions

Pry off clips on mirror glass with a putty knife on backplate and disconnect contact plugs on glass carefully. 4, Unscrew fillister head screw on mirror base so that mirror can be removed with the liner. 2. Unscrew 3 screws through holes in backplatE, take off foam rubber part and pull off wire plugs. 1. Pry off clips on mirror glass with a putty knife on backplate and disconnect contact plugs on glass carefully. 2. Unscrew 3 screws through holes in backplatE, take off foam rubber part and...

WCfrera 4 MODEL 92 SHEET

Voltak valve relay soenod valve bear axle soiowo valve fr sclenot valve r vu f age motor and valve relay efoc relay a tu a ton voltage toto lockng offerekhal valve. transverse lockng dfferehttal valve. lcnqtuqnal voltage valve slay sendee sow. lonstuqnal accelera ton supply accelerating se amp s0r soger sonat lateral accelera ten grolwd accelera rec se s0h sk3uhj speed sensor rr speed sensor rr ouno 5peed sensor rt speed sensor rl wojnd speed sensor fr speed sensor ffi ground speed semsorr...

Location Of Components

Porsche 928 Jetronic

7 Control units ignition LH 9 Temperature sensor I 10 Fuel line 15 Speed reference mark sensors 17 TDC sensor test connection 18 Fuel pressure test connection CENTRAL ELECTRIC POWER SUPPLY FOR LH ELECTRONIC IGNITION 1 - Electronic ignition relay VIII power supply for electronic ignition and LH control 2 - LH-Jetronic relay XVI power supply for LH control unit and air flow sensor 3 Fuel pump relay XVII power supply for fuel pump, auxiliary air regulator and fuel 4 Fuse no. 13 fuel pump,...

Porsche Active Suspension Management Sharp and smooth

Porsche Active Suspension Management PASM electronically controls the performance of the shock absorbers. By continuously adjusting the damping force in each shock, PASM balances the conflicting agendas of ride and handling. Regardless of road surface or driving style, PASM preserves the Boxster's natural agility while enhancing its ride comfort. With PASM, sharp and smooth are no longer mutually exclusive features. Available as an option on both Boxster models, PASM is also part of the...

ABS 5 test with System Tester 9288

Porsche 993 Ecu Scanner

Importaint notes on the ABS 5 and ABS 5 ABD systems When carrying out operations on the hydraulic unit, the rpm sensors and the wire assembly, or when replacing units, a system check operational check with System Tester 9288 must be carried out. This may be required e.g. after accident repairs. This check ensures that confusion of electrical wires and hydraulic lines is avoided and that correct system operation is ensured. When replacing certain brake pipes, e.g. at the intermediate section in...

Troubleshooting the cruise controls control unit

Checking the multiple plug of the cruise control's control unit When cruise control malfunctions occur, the first item to be checked is fuse no. 19 in the central electrical system. The brake light is protected by the same fuse. 2. With the ignition off, remove the multiple plug from the control unit. 3. Connect measuring instrument voltmeter to terminal 12 ground and terminal 1 plus of the multiple plug. Turn ignition on. 4. Connect measuring instrument to terminal Press AUS key OFF on control...

Bosch 221-122-001 Coil Resistance

930 Turbo Adjusting Ignition Timing

Run engine to operating temperature oil temperature about 80 to 90 C 176 to 194 F . Unlike capacitor discharge ignition systems, testing equipment e.g. tachometer can be connected to ignition coil terminals 1 and 15 of transistorized ignition coil systems. 2. Connect engine tester or timing light and tachometer. A positive terminal for connection of testing equipment is located above ignition control unit in engine compartment. 3. Detach both vacuum hoses at distributor. 4, Adjust ignition...

Removing and installing manual steering gear Tools

Too Short Porssche 924 Tie Rod

Torque wrench Stahlwille 730 R 20 or Hazet 6292-1 CT commercially available refer to workshop manual commercially available, e.g. Hazet or Stahlwille 24 mm across flats commercially available, e.g. Nexus 168-1 when fitting steering shaft, avoid putting the shaft under strain only present if castle nut is fitted 30 Nm 22 ftlb , turn to next split pin hole if required max. torque 50 Nm 37 ftlb . Tighten lock nut to 50 Nm. 37 ftlb if the steering or the tie-rod s are to be replaced, start by...

Pedal cluster disassembling and reassembling hydraulic operated clutch

Brake Clutch Pedal Cluster Porsche 911

Remove and clean pedal cluster assembly before starting to disassemble. Support pedal cluster in soft jawed vise. Drive out shaft roll pins arrows . Support shaft to prevent deformation of pedal cluster housing. Use 4 mm pin punch Automotion special tool no. TL-4600 to drive out dowel pins. Remove clutch pedal and cross-shaft. Remove bearing tube from brake pedal base. Remove brake pedal and brake pedal return spring. 12. Clutch cross-shaft inner end 14. Clutch master cylinder bellcrank Pedal...

Suspension Brakes and Steering General

Torsion Bar Suspension

Isolating pulling symptoms 400-10 Braking system troubleshooting 400-12 Brake diagnostic checks 400-12 Brake Suspension Specifications 400-3 Steering Braking System Specifications 400-6 Rim and Tire Sizes 400-7 Alignment Brake System This section covers general information for front and rear suspension, the braking system, and the steering system. Diagnostic and troubleshooting information on these systems is at the end of the section. The Porsche 911 Carrera suspension and steering systems are...

Oxygen sensor checking

Lt1 Ecm Program Run One Sensor

Basic checking of Oxygen sensor efficiency using a pinout test harness Porsche special tool 9543 or equivalent is described below. Exhaust system parts can be hot enough to cause serious burns. When working near hot pipes or mufflers, use heavy gloves and other appropriate protection. For the most accurate test results, the engine must be fully warmed up, the exhaust system must be free of leaks, and all electrical consumers must be off. Disconnect ECM harness connector and connect pinout test...

Checking Warm Up Regulator Warm Engine

Warm Regulator Porsche 924

Disconnect wire connectors at warm-up regulator. 2. Disconnect electrical connector at air flow sensor. Turn on ignition. 3. Check power supply with voltmeter at disconnected plug. Voltage min. 11.5 V. Printed in Germany Removing and Installing Warm-Up 25 - 21 Regulator - Checking Warm-Up Regulator 4. Check heating coil, resistance of heating coil approx. 20 Ohm. If heating coil has open circuit, replace warm-up regulator.

Disassembling And Assembling Transmission

Assembling And Disassembling

Always counterhold on interior shift rod with a suitable tool when driving out pins and keys. 2. Remove differential see page 39 - 201 . 3. Remove shift rods, shift forks and locks. Always counterhold on interior shift rod with a suitable tool when driving out pins and keys. 7. Pull out input shaft and bearing cap with Special Tools 9140 and 9148 Always first remove countershaft and lower countershaft to bottom of transmission. 4. Pull out clamp for reverse gear with a suitable pliers. 5....

Bleeding the brakes vacuum brake booster

Vacuum Hose Porsche 993 Diagram

Caution The description below applies only to vehicles with vacuum brake booster. Use only new brake fluid DOT 4. Observe brake-fluid quality. The brake fluid DOT 4 Type 200 used until now change interval 3 years is no longer available via the Porsche Parts Servie. Super DOT 4 brake fluid will be delivered instead. The change interval for this brake Vehicles with brake systems filled with the previous brake fluid must be filled with Super DOT 4 at the next scheduled brake-fluid This brake fluid...

Extra Attachment For Economical Repair Of Front End Damage

Porsche 911 1975 Steering Assembly

With this set of straightening bench attachments it is not necessary to remove the engine, transmission and rear running gear parts. Its application requires that the rear end of the body is not damaged. Front axle with steering gear Fuel tank Bearing torsion bar covers Damaged body parts and equipment for required for straightening Preparation of Celette straightening bench Bolt attachments for front control arms and auxiliary carrier. Install and bolt cross member with control pins.

Interior Body Equipment

72 81 19 Removing and installing seat lift units . . 72 1 74 28 01 Checking seat heater 74-1 74 27 15 Calibrating controllable seat holder .74- 3 The Repair Manual for the 911 Carrera 993 , Vol. 5, also includes the Repair Manual for the 911 Carrera 4 993 4WD and the 911 Targa 993 . The 911 Carrera 993 forms the basis for the description of repair work in the Manual an 911 Carrera 993 appears at the top of each page. Where different or additional repair procedures apply to the 911 Carrera 4,...

Repair group survey911 Carrera 993

Body Body front section 50 Body center section, roof, frame 51 Front doors, Central Locking System 57 Interior equipment, passenger protection 68 Volume VI Air conditioning 8 Air conditioning Heater 80 Vehicle electrics Ventilation 85 Auxiliary air conditioning system 88 Radio, telephone, on-board computer 91 Windshield wipers and washer 92 Exterior lights, lamps, switches 94 Interior lights, lamps, switches 96 Volume VII Electrical system 9 The Technical Literture for the 911 Carrera (993)...

Larrera 4 Model 89 Sheet

ALARM SYSTEM, CENTRAL LOCKS, MIRROR, POWER WINDOW REGULATOR DRIVER'S SWITCH FOR PDWER WINDOW REGULATOR MOTOR P0WER WWDQW REGULATOR MOTOR PASSENGER'S SIDE PASSENGER'S SIDE DRIVER'S SWITCH FOR PDWER WINDOW REGULATOR MOTOR P0WER WWDQW REGULATOR MOTOR PASSENGER'S SIDE PASSENGER'S SIDE POWER WINDOW REGULATOR MOTOR ORIVER'S SIDE POWER WINDOW REGULATOR MOTOR DRIVER'S SIDE POWER WINDOW REGULATOR MOTOR PASSENGER'S SIDE POWER WINDOW REGULATOR MOTOR ORIVER'S SIDE POWER WINDOW REGULATOR MOTOR...

Tire pressure warning system RDK diagnosis General

Porsche Diagnose 928

- The system tester 9288 will be used for PORSCHE DIAGNOSIS from Mod. 89 onwards. PORSCHE DIAGNOSIS can be used for all systems capable of self diagnosis. Capable of self diagnosis means the control unit can detect, store and output system errors. Read out tire pressure loss event memory from control unit version R02 on introducing during 1991 model year . As the number of systems capable of self diagnosis will be increasing in the forseeable future, diagnosis of the relevant system will be...

Replacing valve guides Removal

Porsche Valve Spring Tool

Working from the camshaft side, machine off protruding valve guide sections using a spot facer until the valve guides are flush with the cylinder head. Loosen guide with a sharp hammer blow and press out remainder towards combustion chamber using a press. 3. Coat machined valve guides with tallow and fit into cylinder head with a shop-made drift, working form the camshaft side. 4. Bore inner valve guide dia. to a dimension of g 8.00 to 8.015 mm using a broach or precision boring equipment. In...

Replacing the brake fluid Bleeding the brakes

Porsche 968 Clutch Bleeder Location

Total quantity for brake fluid change approx. 1 I. The brake fluid must be replaced at least every 2 years. Sequence of operation for bleeding and brake fluid change - Fill reservoir with new brake fluid up to the upper edge. Connect bleeding device to expansion tank. Turn bleeding device on. Bleeding pressure approx. 1,5 bar. - Continue bleeding or changing the brake fluid, respectively, on the other brake calipers no special sequence to be observed . Open...

Replacing Brake Fluid Bleeding Brakes and Lock Control

Porsche 964 Carrera

Use of an electric filling and bleeding machine is recommended to guarantee fast and practical replacement of the brake fluid. Pour new brake fluid in the supply tank until the level reaches the upper edge. Connect bleeder on the supply tank. Clamp the overflow hose venting with a hose clamp. Switch on bleeding machine. Connect System Tester 9288 in conjunction with connecting lead 9288 1 in the diagnostics socket in the passenger's foot-well underneath a cover . Turn on ignition and tester....

Further to 2 Bleeding the lock cylinders and pressure lines

The longitudinal or transverse lock cylinder has been replaced the hydraulic system was opened after the valve block solenoid valves for longitudinal and transverse locks it is suspected that the bleeding condition of the lock control lock actuating is not optimum. Explanation Checking of the bleeding condition in the workshop is too time-consuming or not possible. For this reason, perform bleeding again if in doubt. If the pump assembly, pressure accumulator or the valve block has been...

DME control unit with diagnostic capability

A self-diagnosis function with fault memory is integrated in the DME control unit which permits certain faults in the injection, ignition and knock regulating systems to be detected and stored. The DME control unit has a permanent positive connection to prevent deletion of detected and stored faults when the ignition is turned off. Detected faults remain stored in the fault memory for at least 50 engine starts (exception idle speed switch interruption faults). If the DME control unit plug or...

Important information

If admission pressure is too high before a valve is replaced , again build up a slight pressure and, unlike previous test, cause pressure to fall by switching off ignition. Loss of admission pressure should not exceed 0.5 bar within 5 minutes. After removing manometer, select System Tester menue for drive links bleeding and let off brake fluid from bleed valves of longitudinal and transverse lock servo cylinders until no more air bubbles appear. Disconnect System Tester and correct brake fluid...

Diagnosable DME Control Unit

A self-diagnosis feature with fault memory is incorporated into the DME control unit to permit certain faults to be detected and stored. The DME control unit has a permanent positive connection to prevent deletion of detected and stored faults when the Iginition is switched off. Detected faults remain stored in the fault memory for at least 50 engine starts. If the DME control unit plug or the battery is disconnected, the fault memory will be cleared. Tester Connections The diagnostics socket...

Wheel Alignment Adjusting Values

The following values apply to curbweight according to DIN 70020 (car with full fuel tank, spare wheel and tools) From tire contact surface to 173 + 10 mm** may only be affected by replacing steering arms * The vehicle alignment settings are applicable to the actual vehicle ride height only (see repair manual pp. 44-1 etc.) ** The height setting values apply to new vehicles. Used vehicles may be up to 10 mm lower, i.e. the tolerance may deviate by minus 10mm. This must, however, be the same for...