My 98 C280 ( which I'm trying to sell) recently had a problem where the brakes seemed to throb or vibrate at the wheel rotation speed when brakes were applied .Not wanting to sell it with any problems. I changed the front pads and rotors that were quite worn to no avail. When I opened the rear brakes I found that the inner shoes were not moving. All the wear was on the outers pads. Upon removing the calipers I found that the inner shoes were apparently rusted in Place. .When I removed the shoes the caliper would respond to the brake pedal and move teh piston out the boots are in condition.
I've odreded both new disk ( the insides were rusty) and pads and wondered what if anything other that cleaning the rust from the calipers I should do to make sure I get it right.
The car was not driven for several months and I'm wondering if that contributed to this failure
Thanks in Advance
Boborann

have you checked out caliper paste? Fastlane has it listed in brake parts for your model car. My local Autozone store sells little .99 cent packets of it.

Last time I changed teh pads I put it on teh back as suggested didn't realize that I should lubricate the contact area with teh calipers I'll give it a try
BOB

From what I understand, it seems like the inner pads just rusted in place from not being used. Breaking them free or installing new pads should solve the problem then as long as both pistons move freely. As long as the pistons slide cleanly, then just remove the rust, and the calipers should still be good.

__________________
Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record