E-Class (W212) 2010 - 2016: E 350, E 550

Brakes Squeal Really Loudly

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Old 09-01-2018, 06:44 AM
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Mercedes E-Class 2015
Angry Brakes Squeal Really Loudly

I own a 2015 W212 E-Class, and recently replaced both the discs and pads. I bought the best parts I could find here in the UK, Brembo parts. After having a shop replace the noises made were really loud, to the point that a guy covered his ears after hearing them at a zebra crossing in shock. I need to get this issue sorted out, as it is so odd. I went to the shop again, and he thoroughly inspected both discs and pads and cleaned the discs. He said that he doesn't know why. Please help someone.
Old 09-01-2018, 11:44 AM
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2010 E550, 273 Engine: 2012 S550, 278 Engine
Originally Posted by Abrar Ahmed
I own a 2015 W212 E-Class, and recently replaced both the discs and pads. I bought the best parts I could find here in the UK, Brembo parts. After having a shop replace the noises made were really loud, to the point that a guy covered his ears after hearing them at a zebra crossing in shock. I need to get this issue sorted out, as it is so odd. I went to the shop again, and he thoroughly inspected both discs and pads and cleaned the discs. He said that he doesn't know why. Please help someone.
Did you use ceramic pads?

Old 09-01-2018, 12:02 PM
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Uh, I don't know. I don't think so? Does this matter? As far as I am aware, this wouldn't be an issue. Especially as I bough the pasmds and discs from the same manufacturer Brembo.
Old 09-01-2018, 02:34 PM
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Depends, if they installed am aggressive metallic pad they could make noise. Maybe Brembo has a specific bedding procedure.
Old 09-01-2018, 06:46 PM
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Yes you may have needed to bed these specific pads with the discs. It’s a series of controlled stops and cool down to properly transfer material from the pad to the disc for proper grip and wear.
Old 09-01-2018, 07:01 PM
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14 550 sedan
I've heard some shops say you may have to "break in" new brakes and rotors, which sounds like what was just mentioned above.
Old 09-02-2018, 11:25 AM
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Originally Posted by Abrar Ahmed
Uh, I don't know. I don't think so? Does this matter? As far as I am aware, this wouldn't be an issue. Especially as I bough the pasmds and discs from the same manufacturer Brembo.
I have come to experience that ceramic pads have less noise issues. Also has less brake dust issues.

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Old 09-02-2018, 01:11 PM
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My experience with MB OEM pads is they are manufactured by Akebono and stamped as such. If you used a high performance pad with your new high performance Brembo setup it may need to be bedded as I suggested. Your mechanic knows how to do this and should have done it if that is required. Maybe call someone at Brembo and get their recommendations. Backing plates, proper lubricant on the back side of the pad can all cause noise.

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