Squeaky brakes.
Thread Starter
Senior Member
Joined: Dec 2014
Posts: 448
Likes: 3
From: CALIFORNIA, UNITED STATES
2003 S430, 2014 E350
Squeaky brakes.
Hello all. I got a squeaky brakes problem here. New pads (Brembo ceramic) for the rear, I installed it and put RED stop squeal almost everywhere. Now when the brakes heat up, they squeak everytime when I go under 10mph and under medium to light braking. Heavy braking won't cause the sound. I know it is the rear brakes because i can hear it from the rear. Rotors didn't need to be changed because they are fairly new. I have been driving on these pads for over a month now. Heavy traffic city driving and some highway mixed in.
EDIT: The brakes actually squeal when cold, when I heat them up after a freeway off ramp. It doesn't squeak when I come to a complete stop, but squeaks again the next time I brake.
EDIT: The brakes actually squeal when cold, when I heat them up after a freeway off ramp. It doesn't squeak when I come to a complete stop, but squeaks again the next time I brake.
Last edited by cybertronicify; Feb 29, 2016 at 02:09 AM.
That's why when it comes to brakes I like to stick with OEM. At least the pads. The oem pads have the backing plate that prevents the squeaking. Anyhow, two things I would do. First, try to bed them. You can do a search on line for proper bedding. Second, I would try to put a different Stop Squeal on where the pads make contact with the calipers. That Red stop squeal has not worked for me in the past. Good luck bud!
Thread Starter
Senior Member
Joined: Dec 2014
Posts: 448
Likes: 3
From: CALIFORNIA, UNITED STATES
2003 S430, 2014 E350
I have OEM rotors, however the just ordered brembos because they were cheaper. Right now i only have the red stuff on the backing plate, should I put that in between the backing plate and the pad itself? I have done 2 tries of the breaking in process. Doesn't do anything. 60-20mph 8 times. My brakes faded, but nothing, still squeaking. Do you have a recommendation for another stop squeal?
Senior Member
Joined: Dec 2010
Posts: 282
Likes: 66
From: Virginia Beach
2005 S600 2005 SL600
New pads on the existing rotors, right? Didn't get those rotors turned or replaced...
So, I suspect it's the new pads running on the deposits of the old pads...This might clear up with time. Or it might not. IF you want to be certain, and fix it now, get the rotors turned, just a tiny bit, be certain that your calipers are clean and the antisqueal paste/stuff again between caliper pistons and pads.
So, I suspect it's the new pads running on the deposits of the old pads...This might clear up with time. Or it might not. IF you want to be certain, and fix it now, get the rotors turned, just a tiny bit, be certain that your calipers are clean and the antisqueal paste/stuff again between caliper pistons and pads.
I have OEM rotors, however the just ordered brembos because they were cheaper. Right now i only have the red stuff on the backing plate, should I put that in between the backing plate and the pad itself? I have done 2 tries of the breaking in process. Doesn't do anything. 60-20mph 8 times. My brakes faded, but nothing, still squeaking. Do you have a recommendation for another stop squeal?
Last edited by doni01; Feb 28, 2016 at 04:24 PM.
Super Member
Joined: Jun 2015
Posts: 554
Likes: 44
From: New York
2024 GLE 350
OEM also do it. My Audi suffers from this squeaky break thing. Had it in to the dealer over 5 times for this and theres nothing they can do. When its summer time it stops expect for cold mornings. The Benz also does it here and there. Nothing too drastic like the Audi though.
What I do in the Audi is I slam on the breaks hard a few times to get the breaks wormed up. it's the cold medal that is the problem. Try breaking late, on stop signs or red lights with no one in front of you. The Audi drives me insane though when It does this. and thats almost every morning, with me slamming on them at every given point.
The Benz also stops the squeaking when I slam on them once or twice.
What I do in the Audi is I slam on the breaks hard a few times to get the breaks wormed up. it's the cold medal that is the problem. Try breaking late, on stop signs or red lights with no one in front of you. The Audi drives me insane though when It does this. and thats almost every morning, with me slamming on them at every given point.
The Benz also stops the squeaking when I slam on them once or twice.
Senior Member
Joined: Dec 2010
Posts: 282
Likes: 66
From: Virginia Beach
2005 S600 2005 SL600
I remember TireRack had a good procedure but I can not find it right now... And just so you know, it is your pads squeaking and not the rotors. Turning the rotors has none to do with your squeaking. If there was any old deposits on them, you would feel it in your steering wheel every time you were braking since your steering will shake. With that being said, If the above procedure does not work, I would take the pads off again and put the anti-squeal on the back of the pads also on the ears ( points where they touch the calipers )
But the OP was talking about rear rotors...
Either way, the European cars that I've owned (and it's been quite a few) are very prone to squeal. They also don't respond well to a "pad slap" in which just the pads are replaced without resurfacing the rotors.
So, you can try another application of anti-squeal paste on the critical spots. When that fails, try resurfacing the rotors and bedding the pads...
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Thread Starter
Senior Member
Joined: Dec 2014
Posts: 448
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From: CALIFORNIA, UNITED STATES
2003 S430, 2014 E350
Hello all. I have had this problem for weeks now. Last week i completely cleaned both calipers and rotors with simple green, a mild degreaser. I didn't know he OEM paint finish was grey/blue.
After I let everything dry. I lightly sanded both pads, if I were to guess, 0.005 inch off the pads. I cleaned the pads off again with some simple green and proceed to put the red anti squeal everywhere. Behind the pads on the anti squeak backing plate. Caliper contact points, on the ears, on the piston where it contacts the pads.
I even put the included brembo grease on the caliper guide pins for good measure.
Today I did a test, I let someone drive super slow, 1 mph in first gear on the brakes. They were squeaking loud and clear. I sprayed some water on the calipers, still squeaking... Then I poured water all over the rotors and BAM. No more squealing. (At least until I took it out for a drive and let the water evaporate...)
I'm out of ideas, i'm going to call Autohauaz tomorrow to see if I get get their Bosch Quietcast as a replacement for my Brembos. It has to be quiet since it has the word in the name. It says OE compound.
http://www.autohausaz.com/search/pro...ke%20Pad%20Set
After I let everything dry. I lightly sanded both pads, if I were to guess, 0.005 inch off the pads. I cleaned the pads off again with some simple green and proceed to put the red anti squeal everywhere. Behind the pads on the anti squeak backing plate. Caliper contact points, on the ears, on the piston where it contacts the pads.
I even put the included brembo grease on the caliper guide pins for good measure.
Today I did a test, I let someone drive super slow, 1 mph in first gear on the brakes. They were squeaking loud and clear. I sprayed some water on the calipers, still squeaking... Then I poured water all over the rotors and BAM. No more squealing. (At least until I took it out for a drive and let the water evaporate...)
I'm out of ideas, i'm going to call Autohauaz tomorrow to see if I get get their Bosch Quietcast as a replacement for my Brembos. It has to be quiet since it has the word in the name. It says OE compound.
http://www.autohausaz.com/search/pro...ke%20Pad%20Set
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Senior Member
Joined: Dec 2010
Posts: 282
Likes: 66
From: Virginia Beach
2005 S600 2005 SL600
Sigh...out of ideas, are you?
But water on the rotors made it quiet...and you still don't think it's related to the rotors?
Could it hurt to try what I've been telling you?
But water on the rotors made it quiet...and you still don't think it's related to the rotors?
Could it hurt to try what I've been telling you?
Thread Starter
Senior Member
Joined: Dec 2014
Posts: 448
Likes: 3
From: CALIFORNIA, UNITED STATES
2003 S430, 2014 E350
Wow very interesting... I had a free car wash voucher for a local automatic car wash. After I washed the car, the sounds disappeared... It could be the wax on the rotors that is preventing it from making sounds. I'll drive it for a few more days and see if the sound comes back. In the meantime, I called Autohausaz and after 30 minutes on hold, they picked up and hung up on me. 
Do you guys recommend the Liqui Moly engine flush? I have the same lifter ticking noise that my friend with the M113 E50 fixed with the flush. Would it do any damage? I'm in need for an oil change anyways.
Do you guys recommend the Liqui Moly engine flush? I have the same lifter ticking noise that my friend with the M113 E50 fixed with the flush. Would it do any damage? I'm in need for an oil change anyways.
Thread Starter
Senior Member
Joined: Dec 2014
Posts: 448
Likes: 3
From: CALIFORNIA, UNITED STATES
2003 S430, 2014 E350
Found the problem....... These brake pads have no BEVELED edges... No wonder they squeak like a dying cow... Getting them replaced. Interestingly the picture on Autohausaz shows that every pad has beveled edges.
I'll update when I get them replaced.
I'll update when I get them replaced.
Like I said, go with the oem's and you will have no problems.
Thread Starter
Senior Member
Joined: Dec 2014
Posts: 448
Likes: 3
From: CALIFORNIA, UNITED STATES
2003 S430, 2014 E350
BOOM finished... Squeaks free. I don't think performance pads are a good idea if you want quiet stopping. Those brembos fade much slower than the OEM pads. But hey, at least my car is squeak free now.
