brake questions - Mercedes-Benz Forum
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post #1 of 2 (permalink) Old 07-09-2012, 08:02 PM Thread Starter
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Date registered: Feb 2011
Vehicle: 2007 ML350
Location: Edmond, OK
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brake questions

I have a few break related questions on my ’07 ML350:
I recently (a couple weeks ago) replaced all four sets of brake pads with Wagner ThermoQuiet pads. I had the rotors turned. The rear pads had worn to the point that it tripped the sensor; the fronts still had a little meat left on them. When I had the rotors turned the shop said that the rotors were very warped; is this normal with benz rotors? The vehicle is not driven hard nor are the brakes “ridden”. They were unable to get the rotors completely true while staying within specs; there was a small area on all the rotors that was not hit with the lathe teeth. I say small, it was an area that looked like somebody had marked on the rotor with a sharpie. The shop said that it should not be an issue. I put everything back together and it has got to be the noisiest brake job I have ever completed. I researched and it seems that the ThermoQuiets take quite a few stops to properly seat. After nearly a month now, the brakes are still noisy. There is a “squeak, squeak, squeak, etc” noise that can be heard just driving down the road; I assume this can be fixed with new rotors. As the vehicle comes to a stop, I also hear a mechanical type of noise, as if something is loose or moving around??? I have taken everything apart and reassembled it in case I had done something wrong and can’t seem to cure it. Considered putting a brake hardware kit on when I replace the rotors. As a side note, the ThermoQuiets grip extremely well! Thanks in advance for everybody’s input.
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post #2 of 2 (permalink) Old 07-10-2012, 05:19 AM
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I am sorry for your issues, brake noises make me crazy. I only use OEM parts. I have tried and tried other options.

2008 ML320 CDI. Iridium Silver/Black MBTex, P2 pkg, NAV, Trailer Hitch. Purchased 3/2012 CPO 142,000 miles
2006 E320 CDI Black/Black, Leather, NAV, Harmon Kardon, HTD Seats, Rear Shade. Purchased 2/2010 CPO SOLD
1997 E300D Silver 304,000 miles SOLD
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