Windshield Wiper Blade Contact Angle, Checking and Adjusting
Windshield Wiper Blade Contact Angle, Checking and Adjusting
NOTE: Check contact angle only if wiper blades skip (shudder) or make noises.
Special tools, testers and auxiliary items required
- Wiper arm setting device 3358B
- 24 mm open end wrench
- Torque wrench (5 - 50 Nm) VAG 1331
- Bring wiper arm to park position.
- Remove wiper blade.
- Insert wiper arm - 2 - into wiper Wiper arm setting device 3358B and secure with locking screw - 3 -.
- Check contact angle.
Contact Angle Specification
Driver side - 3 degrees
Passenger side - 3 degrees
Tolerance ± 2 degrees
Adjust contact angle to specification, if required, as follows:
- Place 24 mm open end wrench - 1 - on setting device and adjust wiper arm - 2 - to specification - arrows -.
- Release wiper arm - 2 - from setting device and then re-secure with locking screw - 3 -.
- Compare value set with table. Repeat adjustment and check sequence until specifications are achieved.
- Remove setting device and install wiper blade.
- Wiper arm tightening specification: 20 Nm.
- Check that wiper system operates without skipping.