WIPER ARM, ADJUSTING
Procedure
Note. If the windshield wiper motor is to be run during this procedure, the hood must be closed, otherwise the voltage supply of the wiper motor will be interrupted.
Remove the wiper arms. Refer to WIPER ARMS .
Turn on the ignition.
Activate the "one-touch wiping" and let the wiper motor run to the end position.
Note. Every second time the wiper motor is turned off, it returns the wiper arms to a slightly lower rest position, thus tipping the wiper blade lips the other way. To do so, the wiper motor moves the wiper arms farther down than to the rest position and then a bit up 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 "one-touch wiping" again if necessary.
Turn off the ignition.
Position the wiper arm with wiper blade, installed at the wiper axis and align the wiper blade at the windshield as follows
Scheme 19
- Dimension -a- = 0 + 10 mm.
- Dimension -b- = 0 + 10 mm.
Note. The dimensions give the distance of the wiper blade tips to the cowl panel trim on the lower edge of the windshield.
Tighten the nuts -2- for the wiper arms -1-.
Scheme 20
- Tightening specification, refer to «WIPER SYSTEM OVERVIEW»(/audi/a4/b8-2007-2012/remont/wiperwasher-systems/#wiperwasher-systems-sedan__wiper-system-overview) .
Turn on the ignition.
Operate the "one-touch wiping" and let the wiper arms run to the end position.
Turn off the ignition.
Check the adjustment of the wiper arms again, correct if necessary.
Install the caps -arrows- onto the wiper arms.