Brake pad wear sensor reset
When you replace the brake pad wear sensors on many BMW’s, the system will not recognize they were installed. You will need to use a scanner for the system to relearn them.  Our Schwaben scan tool works perfectly for this.  We are performing this on our 2008 E90 M3, and the procedure will be the same or very similar on most BMW models.
1: Switch the ignition on (do not start engine) and plug the scanner into the OBDII port
​​2: Select “BMW”
3: Select “BMW” again
4: Select “Scan Vin”
5: If the information is correct select “ok”
6: Select “Service”
7: Select “Maintenance”
​8: Select “CBS reset”
-Note: the scanner may tell you that this function is not available.  Proceed with step 9 to continue
9: Select “Back”
10: Select the brakes you are working on currently
11: Select “Reset”
12: your brake pad wear sensors are reset!