Hi all

1987 420SEL.

All of a sudden, the rear brakes applied themselves. No ABS light lit, and only the rears applied. Shut car off, restarted, problem has not reoccured.

But now, every once in a while, the ABS faintly actuates on a slow stop.

What would cause the rears to lock up? How to diagnose? I am guessing the fronts are simply dirty senors or sendor wheel.

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport