Rain Sensing Wipers

[fmugur]

Originally Posted by e30cabrio

I have had this issue since I got my X. The windshield was replaced the day I picked it up by the Mercedes dealer I got it from. I have DIS/GT1 how do I program the sensor?

You go in the RLS module and initialize it. There is a procedure to "re-learn" the windshield after in GT1. I would use INPA for initialization. Look for RLS = rain and light sensor.

The initialization is performed using the service function "Initialize 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 windshield 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.