Wiper Arm: Adjustments
Wiper Arms, Adjusting
Procedure
• If the windshield wiper motor is to be run during the work procedure, the hood must be closed, otherwise the voltage supply of the wiper motor will be interrupted.
- Remove the wiper arms. Refer to => [ Wiper Arm ] Service and Repair.
- Switch on the ignition.
- Activate the "one touch wiping" and let the wiper motor run to the end position.
• Every second time the wiper motor is switched off, it returns the wiper arms to a slightly lower rest position, thus tipping the wiper blade lip the other way.
• To do so, the wiper motor moves the wiper arms farther down then the rest position and then up a bit again. This lower rest position must not be used to adjust the wiper crank.
• Only use the end position where the wiper arms run directly to the end position with no under stroke. Activate the "one touch wiping" again if necessary.
- Switch off the ignition.
- Position the wiper arm with wiper blade installed at the wiper axis and align the wiper blade to the windshield as follows:
• Dimension - a - = 0 + 10 mm.
• Dimension - b - = 0 + 10 mm.
• The dimensions give the distance of the wiper blade tip to the cowl panel trim on the lower edge of the windshield.
- Tighten the nuts - 2 - for the wiper arms - 1 -.
• Tightening specifications, refer to => [ Windshield Wiper System Overview ] Windshield Wiper System Overview.
- Switch on the ignition.
- Operate the "one touch wiping" and let the wiper arms run to the end position.
- Switch off the ignition.
- Check the adjustment of the wiper arms again, correct if necessary.
- Press the caps - arrows - onto the wiper arms.