Removing And Installing Rear Window Wiper

Removing

1. Remove cover for wiper motor on inside of rear lid and pull off wires.

2. Unscrew lock nut on wiper arm.

Lift off wiper arm holder with suitable pliers.

Porsche 964 Rear Wiper Repair Motor

3. Press off cap and unscrew mounting nut.

5. Unscrew nuts on wiper motor and pull bracket off of wiper motor.

Installing

1. After fastening bracket on the wiper motor, tighten the round flat nut against the bracket on the inside.

rear window and pull guide pins out of rear lid frame.

2. Insert guide pins in bores of trunk lid frame and mount wiper arm shaft in rear window.

3. Connect wires on wiper motor.

Term. 31 - brown Term. 53 - green/black Term. 53a - green

4. Turn rear window wiper motor on and check function.

5. Connect wiper arm on wiper arm shaft and align. Wiper arm should be parallel to car's longitudinal axis in off position. Torque locknut to 2.0 Nm (1,5 ft ib).

6. Check off position after running wiper briefly on a wet window, correcting if necessary.

1. Disconnect battery.

2. Disconnect windshield washer pump and remove washing fluid tank.

Porsche 924 Battery

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4. Press grommet into opening in washing fluid tank. Push in pump and engage in washing fluid tank.

SERVICE INSTALLING HEADLIGHT CLEANERS from 1979 Models

A complete installation kit is available for service installation of headlight cleaners.

1. Disconnect battery.

2. Disconnect windshield washer pump and remove washing fluid tank.

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4. Press grommet into opening in washing fluid tank. Push in pump and engage in washing fluid tank.

3. Washing fluid tank has provisions for installation of headlight cleaner pump. Cut off cap on tank with a sharp knife.

It is recommended to use a lubricating paste for the installation of the pump, hoses, jets, etc..

5. Remove extra headlights in bumper and disconnect turn signals. Remove bumper.

6. Mark location of jet bore with help of a piece of narrow adhesive tape.

Punch mark top side.

Dimensions for USA bumper.

10. Install and bolt down jet holder.

8. Place jet holder in bore and align. Mark location of tab.

7. Drill bore for jet with a correct size boring bit. Produce a cylindrical hole from the tapered bore with a file. A 3 mm radius is made subsequently with a file.

10. Install and bolt down jet holder.

9. File out radius for the tab with a round file.

8. Place jet holder in bore and align. Mark location of tab.

11. Cut pieces of hose to size. 14. Connect hose on T-adapter and mount bumper.

Length of hose from left jet holder to T-adapter = 890 mm.

Length of hose from right jet holder to T-adapter = 100 mm.

Length of hose from washing fluid tank to T-adapter = 420 mm.

12. Press jet inserts into jet holders. Mount T-adapter and hoses on bumper.

Porsche 924 Brown

13. Mount 420 mm long hose on pump and route toward front.

15. Pull wire harness with two-pin plug into engine compartment along the standard harness and secure. Connect two-pin plug on pump and screw ground wire (brown) on right front ground point.

17. Disconnect and fold down relay board.

Connect red positive wire of 2nd additional harness on flat male plug H of relay board. Connect ground wire (brown) on ground crown next to relay board.

Porsche 924 Engine Compartment

16. Positive wire (black/red) is already guided through grommet in wall and must be connected on harness.

18. Engage relay socket in relay board (4th installation place from left). Connect short white/black wire with flat male plug in insulating housing. Insert black/red wire of relay socket in opening 2 of terminal P.

Insert relay in socket and install relay board.

20. Fill washing fluid tank and connect battery. Turn on main headlights and operate headlight cleaners several times until water is ejected from jets.

21. Aim jets with aiming tool so that tip of tool faces center of lens.

(Use special tool VW 3019 A).

19. Remove ashtray.

Route remaining wire harness along instrument panel harness to ashtray opening. Install push button switch in center console and connect wires (white and white/black).

Porsche 924 Wiper Switch
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