Originally Posted by baby huey
I've noticed that on mine, too.
In that location, and unprotected, they sure seem vulnerable to damage?
Yeah, that's what I thought. My dealer told me it's a brake sensor...
2013 X5M, Full Akra, Velo Tune, KW V3
2016 M6 Coupe, 600HP CP, M Performance exhaust
2016 M5 Frozen Bronze, CP, CCB, Platinum full leather