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Old 09-10-2003, 09:36 PM
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Join Date: Jun 2001
Posts: 259
Brake Question

I did a front brake job on my 560sl, new rotors and pads. My first brake job. I followed Thomaspins instructions from his website.

They stop great but every so often I get a grinding noise on braking, seems to go away after they've heated up a little.

Just wondering what would cause that-maybe I didn't wipe them as clean as I should have? or, is this a "new brake" sound that'l go away after a few miles?


J. Boggs
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Old 09-10-2003, 09:45 PM
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Join Date: Mar 2003
Location: New York
Posts: 101
You may have to try with a set of softer pads. Softer pads brake better and less likely to develope sceeching noise.

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Old 09-11-2003, 02:35 AM
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Join Date: Sep 2000
Posts: 97
Just some advice from my 2 300sd's -- maybe same for your car?....

I'm not a mechanic but I've changed quite a few pads. I started doing my first brake job 5-7 years ago.
In general, make sure you use good quality pads -- i.e. textar from fastlane works good for my 300sd and I believe they are the OEM for my car. Don't buy from a local parts store - I found "Raybestos" pads (don't ask me why...) are not good for my car and caused the pads to overheat.

I used to have screeching problems but then realized I needed to use some type of silencer material

Also use some brake pad paste (at the dealer they'll give you small packets of it if you buy their pads, or get "Disc Brake Quiet" from Pep Boys. It comes in aerosol spray. Works excellent - I spray it to the pads before inserting waiting 10 minutes. Its a blue colored spray material that works well.

Never heard a "grinding noise" -- usually squeaking high pitched sound if you are lacking paste/silencer material...maybe someone else can help out. Is it pulling to one side when you brake...that happended to me once and I found that the problem was a bad brake caliper that was sticking.
1) 84 300SD 285K+ Miles (Ver Calif)
2) 84 300SD 175K+ Miles (Ver Federal)
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