For best function, the rain sensor has to be installed against the windshield. The rain / light sensor is supplied with voltage via 30g in the connection box. There are two ways to perform an initiation:
Remove fuse F17 for feed 30g for more than 10 seconds (recommended).
Let the car go to sleep mode (Lock the car and wait for more than 10 minutes).
After 10 seconds the new adaptation values have been generated and automatically stored by the rain sensor.
Initiation of the rain sensor shall be performed:
After changing the windshield.
After installing rain / light sensor.
Test conditions:
For correct initiation, the windshield shall be dry, clean, and free from defects in the area around the rain sensor.
The rain sensor shall be installed against the windshield.
Ignition on, engine off.
Procedure:
Select function "Rain sensor initiating", press "OK".
Remove fuse F17 for at least 10 seconds or put the car in sleep mode.