I have a 1996 C280, today my ABS, Parking Brake and Brake Wear Indicator lights all came on. I was hoping for the fast fix, a new battery, but that didn't help (battery was overdue for a change anyway). Any ideas? I have read some posts about the brake switch fixing it, but I don't know. By the way, I don't know what type of driving conditions prompted the lights, my wife was driving at the time. Brake pads and rotors look OK, brake fluid is full, etc....???

I just took it for a ride. I need to mention that the speedometer, cruise control and odometer aren't working either. The brakes act fine though.

OK, after some searching, I found more threads on this issue. It seems like this is due to my OVP relay. I am going to replace it and if this fixes the problem, I will post back here for future reference.

Friend,
Check all your fuses and have it scanned.
dpk

Replaced the OVP Relay, everything works now.