Eesti BMW Klubi

Due to the optical process, the rain sensor has to be adapted to the windscreen. This adaptation takes place at initialisation.
Requirement for faultless initialisation is that the windscreen glass is dry, clean and free of defects in the area of the rain sensor.
The initialisation is performed using the service function ”Initialise rain sensor” in the BMW diagnosis system. In the service function, the adaptation values in the rain sensor are deleted. This is followed by adjustment of the sensor system to the windscreen based on the following sequence:
•Switching off the rain sensor
•Switch off terminal 15 and terminal R
•Switch on terminal R and terminal 15 and wait 10 seconds
In the 10 seconds waiting period, the new adaptation values are determined and stored.
Initialisation of the rain sensor is necessary:•After replacing the windscreen
•Fitting a used rain-driving light sensor
Note: a used sensor must be coded beforehand!