993 1995 Radio Alpine 7807

Volume VI: Air conditioning Vehicle electrics

Engine - Crankcase, mounting Engine - Crankshaft, pistons Engine - Cylinder head, valve drive

Fuel, exhaust system, engine electrical system

13 15 17

20 21

Volume II:

Transmission Manual transmission

Manual transmission - Controls, case

Manual transmission - Gears, shafts, inner operation

Final drive, differential, differential lock

35 39

Volume III: Transmission Automatic transmission

Automatic transmission - Torque converter Automatic transmission - Controls, case Automatic transmission - Gears, control Final drive, differential, differential lock

Volume IV:

Chassis

Front wheel suspension, drive shaft

Rear wheel suspension, drive shaft

Wheels, tires, alignment

Anti-Lock System (ABS)

Brakes - Mechanical

Brakes - Hydraulics, regulator, booster

40 42

Repair group survey__911 Carrera (993)

Volume V: Body 5

Body Body front section 50

Body center section, roof, frame 51

Body rear section 53

Front doors, Central Locking System 57

Exterior body equipment 6

Glasses, window control 64

Exterior equipment 66

Interior equipment, passenger protection 68

Interior body equipment 7

Trim, insulation 70

Seat frames 72

Seat upholstery, covers 74

Volume VI: Air conditioning 8

Air conditioning Heater 80

Vehicle electrics Ventilation 85

Auxiliary air conditioning system 88

Electrical system 9

Instalments, alarm 90

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

Wiring diagrams Wiring 97

Volume VIII: Diagnosis D

Diagnosis Self-diagnosis 03

DME Diagnosis 24

Tiptronic Diagnosis 37

PDAS Diagnosis 39

ABS Diagnosis 45

Airbag Diagnosis 68

Heater Diagnosis 80

Alarm Diagnosis 9°

Preface

Structure

The "Technical Literture" for the "911 Carrera (993)" model is basically structured as before i.e. the structure follows the familiar repair groups.

A new feature is that the structure includes the main groups 0 to 9 and the main group D.

Layout

The layout in the below items remains unchanged throughout the repair manual

1. Table of tightening torques

2. Special tools required

3. Exploded views

4. Legends for the exploded views

5. Assembly notes / use of special tools

As a new feature, however, the former item 6 (Repair group diagnosis) is no longer filed in the volume corresponding to the respective repair group. The Diagnosis test plans / diagnosis procedures have been combined in a separate Diagnosis volume broken down according to the main groups 0 to 9.

Another new feature is that the contents of the "Service Information Technik" are indicated in the Repair Manual. This brochure concentrates on a description of the design and function of components and of the new features introduced for a particular model year.

Main groups:

Complete vehicle - General Engine

Fuel, exhaust, engine electrical system

Transmission

Chassis

Body

Body equipment, outside Body equipment, interior Air conditioning Electrical system Diagnosis

Service Number

All major repair procedures and repair descriptions are identified by a two- or four-digit Service Number completed by two additional digits to identify the work that corresponds to the first six digits of the working position number in the Working Times and Damage Catalog.

Example: 30 37 37 Dismantling and assembling clutch control shaft

Explanation: 30

Repair group -1

here: Clutch, control

Component designation -

here: Clutch control shaft

Activity -

here: Dismantling and assembling

Index -

here: Removed

37 37 50 (full working position number)

Presentation in the various documents

30 37 37 50

30 37 37

30 37

Working position no. from Working Times and Damage Catalog, consisting of repair group, component designation, activity and index Six-digit number in Repair Manual, consisting of repair group, component designation and activity

Service number in Service Information, consisting of repair group and component designation

Goal

The introduction of a service number in the "technical literature" is intended to facilitate standardization and positive identification to allow direct cross-referencing among the various documents This is of particular importance with regard to the use of electronic media.

VI Air conditioning, Vehicle Electrics

The Repair Manual of the 911 Carrera (993) also includes the 911 Carrera 4 manual (993 four-wheel drive). The 911 Carrera (993) is the basic model covered by the repair operations described in this Manual. "911 Carrera (993)" is also indicated in the header of each page.

Descriptions of repair operations that deviate for the 911 Carrera 4 will be included after the respective 911 Carrera section. The repair descriptions of both models are separated by a cover page. All pages included after the cover page (separation sheet) have the "911 Carrera 4" heading. To facilitate distinction, the page numbering will start with 100.

Where different or additional repair procedures apply to the 911 Targa (993), these are given following the repair instructions for the 911 Carrera or 911 Carrera 4. The repair instructions for the 911 Targa (993) are separated by a title page. "911 Targa (993)" appears at the top of each page after in the title page (divider). In addition, the page numbering starts with 200.

Air conditioning

Technical data / Air conditioner .

Checking ballast resistor of rear blower . . Removing and installing rear heater blower

Ventilation

Adjusting the flaps of the heater A/C unit

Adjusting the temperature mixing valves

Removing and installing heater fresh air blower motors

87 Pressure and temperature specifications . 87 - 1

87 01 19 Dismantling and assembling heater A/C unit . 87 - 3

87 02 19 Removing and installing heating and air conditioning control . . . . 87 - 9

87 83 19 Removing and installing A/C system pressure switch . 87 -11

87 03 Safety instructions for handling refrigerant R 134 a . 87 -13

87 55 19 Removing and installing liquid tank . 87 - 25

87 50 19 Removing and installing condenser 87 - 27

87 53 19 Removing and installing condenser fan 87 - 29

87 01 19 Removing and installing heater / air conditioning unit. 87-31

87 34 19 Removing and installing compressor 87 - 35

87 27 19 Removing and installing magnetic clutch 87 - 37

87 70 19 Removing and installing expansion valve 87 - 39

9 Electrics

90 Instruments, Alarm System

90 73 Tuning model '94 remote control units 90 - 1

90 68 19 Removing and installing immobilizer control unit 90 - 9

90 73 37 Disassembling and assembling hand-held transmitter 90 - 11

91 Radio, Telephone, On-Board Computer

91 55 23 Retrofitting a D-Net telephone system 91 - 1

91 20 01 Check list of possible faults on the Porsche Autoradio CR 10 91- 7

92 Windshield Wipers and Washer

92 00 19 Removing and installing windshield wiper system 92-1

92 00 19 Removing and installing windshield washer system 92-5

92 00 19 Removing and installing headlight washer system 92-9

92 00 19 Removing and installing rear window wiper 92-13

92 15 19 Removing and installing wiper motor (with A/C system) 92-17

92 15 19 Removing and installing wiper motor (without A/C system) 92-21

94 Lamps, Lights, Exterior Switches

94 15 19 Removing and installing main headlight mountings 94 - 1

94 23 19 Removing and installing gas discharge lamp (Litronic headlights) 94- 3

94 15 01 Litronic headlight (dipped beam): troubleshooting 94- 5

Survey of contents of Service Information Technik '95

The Service Information gives a detailed description of the technical features of the new 911 Carrera.

Engine

Engine cross-sections 10 1-4

Full-load curve 1 - 6

Belt pulley 13 1-8

Pistons 13 1-10

Hydraulic valve lash adjuster 15 1-16

Setting the timing 15 1-18

USA - auxiliary air pump 1-19

Fuel and ignition systems

DME - Schematic 24 2-2

Exhaust gas flow 26 2 -5

DME control unit 2.10.1 24 2 -9

Mass airflow sensor 24 2 - 12

Throttle potentiometer 24 2 - 18

Ignition system 28 2 - 24

Plausibility test 2 - 28

Diagnosis 2 - 29

Auxiliary air pump 26 2 -33

Power transmission

Transmission 30 3-1

Clutch 30 3 -2

Manual transmission 34 3 -3

Transmission ratios 3-6

Synchromesh 35 3-9

Final drive 39 3 - 13

Oil supply 3-15

Porsche Tiptronic 37 3 - 16

Modifications for the '95 model year 3-17

Running gear

Front axle 40 4-2

Steering 48 4-7

Rear axle 42 4-8

Elasto-kinematic toe correction 42 4- 12

Coil springs (layout) 42 4- 13

Wheels, tires 44 4- 15

Suspension alignment 44 4 - 17

Brakes 47 4- 20

Bleeding the brakes 47 4-23

Operation of the ABD 45 4-30

Diagnosis ABS/ABD 45 4-34

Body

Constructional dimensions 50 5 -4

Aerodynamics and air ducting 50 5 -8

Body equipment

Body equipment 6 - 1

Color scheme as of 1995 model year 60 6-1

Windows 64 6-8

Airbag system 68 6- 14

Body - interior trim

Body - interior trim 70 7-1

Seats 72 7-5

Heating, air conditioning, ventilation

Particle filter Air ducting

Heating - air conditioning unit Heating - air conditioning unit Series resistor of rear blower

Electrical system

Alarm system/central locking system

Heated rear window

Central Information System (Z I)

Radio "Alpine 7807"

Sound package, DSP-System

Windshield wiper and washer system

Front end light cluster

Engine compartment baseplate

Page

90 64

91 91

92 94 94 94 97

Summary

Maintenance Number ranges Technical data

8 Technical data of air conditioning system

Compressor model 10 PA 15 C

Refrigerant charge 840 g refrigerant R 134a

Refrigerant oil in compressor 140 ±20 cm3 ND 8

Tightening torques for refrigerant lines

Thread outer dia.

TPI

Tightening torques in Nm

5/8"

18 UNF

17 ± 3

3/4"

16 UNF

24 ± 4

7/8"

14 UNF

33 ± 4

Hex bolts at

Thread

Tightening torques in Nm

Expansion valve

M 5

6

Expansion valve

M 6

9

Compressor

M 8

When fitting the refrigerant lines, apply some refrigerant oil to the bolt unions and the O-rings. Dispose of the refrigerant oil as hazardous waste.

80 59 01 Checking ballast resistor of rear blower

The ballast resistor is fitted with a restart lockout device. This restart lockout may be bypassed if the 1 st stage of the rear blower should fail (2nd stage of rear blower operates continuously).

1. Take out ballast resistor.

2. Press down spring plate with a needle or a similar tool. This causes the contact tongue to snap back into its initial position.

Note

993 Ballast Resistor

200-80

3. Replace the ballast resistor if the contacts are burnt.

80 18 19 Removing and installing rear heater blower

Removal

1. Remove intercooler. Pull vacuum hose and connector off the switchover valve. Undo fastening screws from fresh air housing and take out fresh air housing.

Diagram Alarm Porsche 993Porsche Blower Boot Housing
2073-80

3. Pull rear heater blower out of support in rearward direction and take out blower.

Installation

Check for correct seating of hose connections and hose clamps on heater air elbow.

2. Remove hose clamps and tie-wraps from heating air elbow and pull off rubber boot. Disconnect connector from rear heater blower and undo fastening screws

85 16 15 Adjusting the flaps of the heater/ A/C unit

Adjusting the defroster center nozzle flap

1. Set motor to "Defroster closed" end position: Apply a voltage of 12 volts to pin 4 (positive) and pin 5 (negative) using two jumper leads until the motor is positioned in

Porsche 914 Heater And Defrost Repair
256-87

2. Press defroster center nozzle flap into "Defroster nozzle closed" position (upper

Adjusting the footwell flaps

1. Set motor to "Footwell flaps closed" end position: apply a voltage of 12 volts to pin 4 (negative) and pin 5 (positive) using two jumper leads until the motor is positioned in the end position. The drive lever now points towards the fresh air inlet.

2. Set both footwell flaps to closed position. Engage linkage with lever and locate with

Porsche Service

3. Assemble motor drive with flap link and lock

85 51 15 Adjusting the temperature mixing valves Note

The temperature mixing vales are located below the instrument panel in the driver and passenger footwells.

1. Set engine to "temperature mixing valves closed" end position: Use two jump leads to apply 12 volts to pin 4 (positive) and pin 5 (negative) until the motor is in the end position.

Porsche 993 Heater Control Panel
256-87

2. If the temperature mixing valve is not closed, undo the motor mount. Slide the motor in the slots until the temperature mixing valve is set in the closed end position.

85 30 19 Removing and installing heater fresh air blower motors

Tools

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Responses

  • Erik
    How to remove alpine 7807?
    6 years ago
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    3 years ago
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    How to repair a porsche 993 radio?
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