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uneven front/rear brake applic W124
1995 E320, 207K miles.
Over the past 2 months the car was up on ramps while I worked on the engine. Engine work done, I took the car down, started driving...there was a lot of oxidation/rust on the brake roters. I figured normal driving would wipe them clean and smooth. After 120 miles the front brakes have more or less cleaned themselves but the rear have a few high spots where they are clean and the rest (majority) is still rusty. Driving/applying the brakes are loud, rumble and pulsate. I realize the fronts get more action than the back but I thought it was more along the lines of 60/40 or 66/33 ratio but it looks like my backs are barely getting touched. On my Chrysler vehicle there is a load balancer that controls front and back brake application, I don't believe there is such a thing on MB's. I sprayed brake cleaner on the rotors which helped visually but didn't fix the rumble and pulsating. I figure the fix is to shave the rotors down if they are within spec. The back brake pads have 70-80% meat left in them, the fronts have to be replaced within the next 3-4000 miles. Any comments? |
#2
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Most MB's use a 70%+ front braking.
Possibly the rears on your car have calipers that aren't functioning properly. RUST? For rust issues remove the pads & use wire brush on the mating surfaces and apply never-seize. Also are the rear pads OE or aftermarket?
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
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