The right front brake grabs ever so slightly, making rhythmic, pseudo-sexual intermittent "humming" noise at speeds below 10mph. No evidence of grab, pull or early lock; plenty of stopping power. Rotor looks ok. Plenty of pad - fronts done <5k ago by previous owner. Can spin wheel fairly easily by hand when jacked-up, but stops a bit more quickly than it should. Have been driving it this way for >3k miles without problem, but what's causing it, and what can I do without major headache/resurfacing rotors etc? -

Thanks -

The only time I ever experienced anything like you describe was on a different vehicle, it ended up being a small amount of brake fluid on my pads. the fluid makes the pads grabby.

The only other thing I can think of is that the opposite caliper is not 100% bled causing one side to respond ever so slightly before the other. Try bleeding the left front.

Tony -

Thanks for the insight. I don't think it's brake fluid on the pads. I'll try the bleeding thing - what the hell, it worked for doctors for hundreds of years, and they didn't have any idea what was wrong, either!

Karl

Karl

Sorry, but this is not an answer to your question. I just wanted to share that I have the exact same problem with my 85 245 GL, 78k miles. You have described it perfectly except mine occurs 20mph and below, and on the left front side. I checked with the vehicle on a lift and the wheels removed, the rotors looked a bit thin, maybe turned too much on a lathe. I've already ordered new rotors, caliper kits, pads from rprusa in anticipation of a complete brake overhaul.

Please let me know what happens to you.