Front
Removing And Installing Wiper Motor
Preliminary work
Remove cowl panel cover.
Removing wiper motor
NOTE:
- When the bonnet is open the wiper system is deactivated; only after closing the bonnet and switching the wiper system off and on again are the wipers reactivated.
- The wiper control unit is located in the wiper motor. Overview of wiper motor
1. Switch off ignition and remove ignition key.
2. Unscrew the two front fastening nuts -7-.
3. Press clip on plug and disconnect electrical plug connection -A of wiper motor.
3.1. In right-hand drive vehicles, the clip for disconnecting the plug connection is located on the underbody.
4. Unclip engine wire harness to the wiper system 2x.
4.1. Please observe the following points for right-hand drive vehicles: The connector is locked. The catch is located on the underside of the connector and is not visible from above. To release the catch of the connector, pull the tab on the connector but without undue force on the connector. This then releases the catch. The connector can now be pulled off.
5. Unscrew four fastening screws -8- on the wiper linkage.
6. Lift wiper motor together with linkage downwards on the driver's side and upwards on the passenger's side. Rotate the entire component and remove it upwards. Ensure support -B- remains attached to the body.
7. Mark drive position of wiper linkage.
8. Unscrew fastening nut -9-and disengage drive.
9. Unscrew three fastening screws -10- and remove wiper motor.
Installing wiper motor
1. Before attaching wiper motor to wiper linkage, connect wiper motor to electrical plug connection, close bonnet, operate one-touch wipe at least once and let motor run to the end position. Disconnect plug connection again.
2. Before attaching wiper arms, the wiper motor must be operated a second time at least once with one-touch wipe and run to the end position. Close bonnet.
NOTE: If a new wiper motor is being installed, ensure that the correct Porsche original screws are used.
3. Fit wiper motor to wiper linkage and position it. Screw in fastening screws -10- and tighten to the specified tightening torque. Tightening torque 6.5 ftlb.
4. Place linkage on wiper shaft, position it, set dimension -X- = 4 mm between mechanical stop and motor crank (wiper motor) and tighten with fastening nut -9-. Tightening torque 13 ftlb.
5. Position wiper system. Engage support -B- on the body, insert wiper motor with linkage downwards on the driver's side, rotate wiper linkage slightly and lay it down.
NOTE: Observe the order for the fastening screws.
6. Position fastening screws -8- for wiper system and tighten beginning on the driver's side. Tightening torque 7.5 ftlb.
7. Connect electrical plug connection -A-.
8. Tighten front fastening screws for wiper system -7-. Tightening torque 6.5 ftlb.
Subsequent work
Remove and install cowl panel cover.
Coding the wiper control unit
After replacement of wiper motor and control unit, the coding must be adapted to the vehicle equipment so that the control unit knows which sensor it can find on the sensor cable.
The following equipment features can be changed:
- Wiper with rain sensor
- Wiper with rain/light sensor
NOTE:
- When the coding is changed in the Modify coding menu item, the ignition must always be switched off afterwards and the key removed.
- After the ignition is switched on again, the new coding of the control unit is updated and the stored faults can be erased.
- If communication with the wiper motor control unit is not possible, the reason may be incorrect coding. Remedy: Re-code the control unit and restart the connection setup using the tester. Code control unit correctly.
- If the coding does not match the vehicle equipment, faults may be displayed that are not really present.
- The wiper motor control unit does not function without a valid coding entry.
Vehicle coding table
Setting Function
Rain sensor Automatic intermittent wiper operation
Rain/light sensor Automatic intermittent wiper operation and headlight control