Brake question?
Things I have done to try and resolve this issue:
- Numerous times getting up to speed and bring the car to abrupt stop to heat up the brakes...didn't work!
- I have tried going in reverse and braking hard....didn't work!
Once I was done with the replacement and bedded the brakes, the squeak did not come back and this time the pad sweeps all the width of the rotor on the outer side, there is no more un-swept ring.
However I did use the normal squeak-stop glue for the back of the pads, so I knew that one way or another they will not squeak.




"The high-performance brake system is designed to operate under the extremely high operating demands required to accommodate the performance capabilities of the vehicle.
The brakes may produce a squeaking-type noise depending on the vehicle speed brake force applied, ambient conditions, e.g. temperature and humidity."
I had this same brake squeal on both my E63 and C63, and the dealership wouldn't do anything about it. I had to take matters in my own hands and changed the pads to ceramic, and that eliminated my brake squeal issue.
I used Stop Tech Ceramic Pads.
Will just post this here in case you are interested:
Pads - Porterfield R4-S (but you can get any)
Rotors: I ordered from two sites (lowest prices at that time). I always use OEDiscountParts when I can, (Tracy is great there). FCPEuro has great selection and an amazing replacement/warranty (lifetime).
OEDiscountParts - Rear (2044230412) - $49 each, plus shipping
FCPEuro - Front (0004212012) - $121 each, plush shipping
Last edited by INS1GNIA; Apr 24, 2018 at 02:55 PM.
Will just post this here in case you are interested:
Pads - Porterfield R4-S (but you can get any)
Rotors: I ordered from two sites (lowest prices at that time). I always use OEDiscountParts when I can, (Tracy is great there). FCPEuro has great selection and an amazing replacement/warranty (lifetime).
OEDiscountParts - Rear (2044230412) - $49 each, plus shipping
FCPEuro - Front (0004212012) - $121 each, plush shipping
thank you, Tracy 😁
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I have had luck in the past grinding off those rusty rings, they seem to touch the pad when lightly braking and cause noise, especially the outside one - have ground that off on other cars and it has solved the noise for a while.
Not a a deal breaker but it may be time for new pads anyway. 30k easy miles on these pads and rotors.
TC




As well as apply antiseize compound the caliper pins. Basically anywhere that the pads make contact with the caliper, is covered with antisqueal compound. It has now been several months and no squeal whatsoever. I have done this to every AMG I've owned, and so far it has worked.




You can effectively eliminate the squeaking and squealing with anti-squeak compound. All (3) AMGs that I owned had brake squealing issues, until I addressed the issue. Haven't had any issues since.
You can effectively eliminate the squeaking and squealing with anti-squeak compound. All (3) AMGs that I owned had brake squealing issues, until I addressed the issue. Haven't had any issues since.
Do a good job.
1. Buy a brass wire brush and carefully brush all seating/guide areas.
2. Un-do the old brake pads, do the work to remove them.
3. Clean everything, make sure the seating area of the pistons that touches the back of pads is clean, that metal shows. Don't remove the piston chrome coating, just clean it.
4. Use brake guide area lubricant and possibly with a q-tip only lubricate the area where the brake pad "ears" sit inside the caliper. Make sure you understand which area this is.
5. Put brake squeel stop glue on the back of the brake pads, make a good thickness coat, you can't see the black of the steel of the back of the pad, in the area where the piston touches it.
6. Button up the work
7. Bleed the brakes
8. Bed in the brakes. Now the bedding of the brakes described in the WIS and in the pad instructions is for new pads on new rotors. For new pads on old rotors, you need to put more time into the process. Be safe however and realize that there's a lot of stress going into the system when you do this. I physically broke a rear rotor in a 1994 Mercedes years ago.
There will be no squeel. There was none in cars with fixed calipers, floating calipers, all different makes, replaced pads only, pads and rotors as well, German cars, Italian cars, Japanese, Mercedes from 1982, 1987, 1994 and so on..
What mechanics tell you "these cars squeel anyway" should be translated as following:
"I don't have time to do a full brake job for you. That's for enthusiasts and racing people"




Do a good job.
1. Buy a brass wire brush and carefully brush all seating/guide areas.
2. Un-do the old brake pads, do the work to remove them.
3. Clean everything, make sure the seating area of the pistons that touches the back of pads is clean, that metal shows. Don't remove the piston chrome coating, just clean it.
4. Use brake guide area lubricant and possibly with a q-tip only lubricate the area where the brake pad "ears" sit inside the caliper. Make sure you understand which area this is.
5. Put brake squeel stop glue on the back of the brake pads, make a good thickness coat, you can't see the black of the steel of the back of the pad, in the area where the piston touches it.
6. Button up the work
7. Bleed the brakes
8. Bed in the brakes. Now the bedding of the brakes described in the WIS and in the pad instructions is for new pads on new rotors. For new pads on old rotors, you need to put more time into the process. Be safe however and realize that there's a lot of stress going into the system when you do this. I physically broke a rear rotor in a 1994 Mercedes years ago.
There will be no squeel. There was none in cars with fixed calipers, floating calipers, all different makes, replaced pads only, pads and rotors as well, German cars, Italian cars, Japanese, Mercedes from 1982, 1987, 1994 and so on..
What mechanics tell you "these cars squeel anyway" should be translated as following:
"I don't have time to do a full brake job for you. That's for enthusiasts and racing people"




https://www.google.com/search?source....0.IxzHEOFTZfM
VIR...
Squeal you say... with the OEM pads no squeal ... now I’m running GLOC-18s front and GLOC-16s rear on my 2015 507...
She’s squealing so loud now but braking with the GLOCs is much improved both on and off the track...
http://www.g-locbrakes.com/products/brake-compounds/








