if you reset the brake service interval and after this you see red service light and "---------" You must change sensor. Why? read this:
https://wiki.bentleypublishers.com/d...W+5+Series+E60
You may use old sensor if it is completly untouched. If surface of sensor is used car detect this, but do not show any warning. If you reset interval you must use new sensor, because car detect that sensor is old
//sorry for my english