Wiper Blade: Testing and Inspection

Windshield Wiper Blades, Checking

Park Position

• Every second time it is switched off, the wiper motor runs to an over-stroke parked position, that ensures that the lip of the wiper blade is flipped to the other direction.

• For this to happen, the wiper motor runs downward to the end position and then back up again very slightly. This over-stroke parked position must not be used for aligning/checking the wiper crank.

• The position where the wiper motor runs directly to end position must be used. Activate mist wipe again, if necessary.

- Switch windshield wipers on and off and allow to run to end position.

- Switch ignition off.

- Check if the windshield wiper blade tips are positioned with the following distances to the plenum chamber cowl panel grille at the bottom of the windshield:





• Dimension - a - = 20 to 0.30 mm

• Dimension - b - = 5 to 0.15 mm

- Adjust the wiper arm if necessary.

• The dimensions give the distance of the wiper blade point to the cowl panel on lower edge of windshield.