slightly hanging-up brake, please help
 

My 420sel seems to have a brake that hangs up slightly once in a while. It's getting to be more frequent now and causes the steering wheel to vibrate, and if I continue on it gets worse until I stop. If I leave the car in neutral and get out and grab the right front tire i can move the car forward or backwards fairly easily. This tells me the brake is not sticking that severe, but enough to vibrate the wheel and make me stop. I here a little bit of rubbing on the right front more so than any other wheel that's what makes me believe it might be that one. I'm looking for Ideas because I dont have alot of money to throw at this problem for no reason, because it needs all 4 tires and a complete exhaust system (tires dry rot and exhaust got hole as soon as I took it out of storage :mad: New England is great! :pukeface: Thanks for any input on this problem, and happy motoring!! :cool: cb

the vibrating in the steering under braking suggests a warped brake rotor, and the sticking sounds like the caliper may need to be rebuilt or replaced with a rebuilt caliper because the piston is sticking. you can buy rebuilt calipers from autozone pretty cheap, it is not that hard a job if you've done this kind of thing before and know how to bleed brakes.

Brake fluid contaminated pad material will cause the brake to hang up too. You'll need to rebuild the caliper or replace it. I rebuilt my W126 calipers and it is not that bad of a job.