[W126 Coupe] Brake Squeal?

[Shayegan, Richard]

Are the pads already broken in at this point? When I put Metal Masters
on my SE I never had any problems. Then my much gentler driving dad
drove the car for a while, and it started squealing terribly. I started
driving it again and the squeal went away. If they are already bedded
in, do some (like 8) hard 60mph to 20mph "stops" (in quotation marks
because you aren't coming to a complete stop, you are just slowing down
fast) and see if the squealing goes away.

Richard

 

________________________________

From: mbcoupes-bounces at mbcoupes.com
[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Mike R.
Sent: Sunday, May 08, 2005 12:54 AM
To: 'Mbcoupes'
Subject: [W126 Coupe] Brake Squeal?

 

I put a set of semi-metallic brake pads on the back of the SEC and they
squeal horribly. There were some shims on the other brake shoes so I
used a little Permatex anti-squeal compound on the new pads and on both
sides of the shims - they squealed. I took them out, cleaned the pads
and shims, and re-installed them using a fair amount of compound - they
squealed. Took them out, removed the shims, cleaned the pads and
pistons, added a fresh coat of compound to the pads - and they still
squeal.

 

I have a spray can of the Permatex anti-squeal compound and a bottle of
CRC anti-squeal compound that I could use, but I'm not sure if they will
be any better than what I've already done.

 

Should I take some emery cloth to the rotors so that the new pads bed in
better? Should I have the rotors re-surfaced or get new ones? Do I need
to leave the Permatex anti-squeal compound on the pads and do six or
seven 70 to zero stops to heat them up and bake the anti-squeal
compound??

 

Suggestions??

 

Later,

Mike R.

(702) 494-8056

 

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