Wiper Arm: Adjustments

WM 922515 Adjusting wiper arm attack angle

Tools






Preliminary work

Preliminary work for adjusting wiper arm attack angle

Information

The wiper arm attack angle will need to be checked and adjusted if the customer complains of: rubbing or hesitation of wiper, noises when wiping or uneven wiping area.

It is important that the wiper blades are inspected for wear and the windscreen is free of contamination.

1. Check condition of windscreen and clean off any contamination.
2. Remove wiper blade.
3. Inspect condition of wiper blade and replace if necessary.

Adjusting wiper arm

Adjusting wiper arm attack angle

Special tools: Adjustment device 9737





Tools overview





Information

Wiper system must be in the parking position. Before starting work, allow the wiper system to run 2 - 3 times with water spray.

WARNING

Unexpected switching on of wiper system while working on the wiper arms.

- Danger of trapping from wiper arms.

-> Switch off ignition and remove ignition key.

1. Push adapter -B- for the Cayenne onto the wiper blade mounting.





Engaging adapter on wiper arm

2. Mount the angle measuring device -A- on the adapter and tighten with the knurled screw.





Screwing angle measuring device to adapter

3. Read off wiper arm angle of attack using the angle measuring device and compare with the nominal values.






4. If the nominal values are not achieved, the wiper arm must be adjusted using the two adjusting tools.
5. Clamp the two mountings for the angle adjusting tools over the wiper arm and screw the adjusting tools into the mountings.





Tightening wiper arm mounting with adjusting lever

6. Adjust the angle to the nominal value by turning the front adjusting tool.





Adjusting wiper arm parking position angle to nominal value

7. To check the "wiper arm attack angle" the adjusting tools must be removed.
8. When the readings equal the nominal values remove the special tool and fit the wiper blade.





Checking end position of wiper arm

9. Switch on ignition, switch on wiper and as soon as the wiper is in the end position switch off ignition.
10. Remove wiper blade and fit adapter with the angle measuring device.
11. Read off end position values and compare with nominal values. If the nominal values are not achieved, remove adapter together with angle measuring device, fit wiper blade and, with the wiper arm in the parking position, measure attack angle and then readjust. >>> repeat work and test procedure from the beginning.

Subsequent work

Subsequent work for adjusting wiper arm attack angle

1. Install wiper blade.
2. Check wiper function of wiper system.