General Information

Principle of Operation

In combination with the wiper switch and the Rain/Light Sensor, the wiper drive has the following functions:

- Regulated wiper speed
- Reversible wiper control
- Wiper stages 1 and 2
- Rain sensor operation
- Single wipe
- Alternating park positions (APS)
- Windshield washer system (SWA)
- Wet-arm heater (NAH)
- Headlight cleaning system (SRA)
- Snow mode
- Blocking protection
- Sluggish mode
- Service position
- Washer jet cleaning function
- Check Control messages
- Diagnosis