Noise after releasing brake pedal

mogismarian

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Jul 24, 2020
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Your Mercedes
E-Class/2011/E220
Hi guys.

Hope someone could help me. I was trying to find the answer for the last couple of days but with no luck.

My mercedes E220 2011 52 000 miles diesel with automatic transmission makes strange noise every time when releasing the brake pedal. It doesn’t matter if it’s in park position or N,D,R position.
I took the front wheel off today to find out what is going on but couldn’t find or see anything.

I made video for you to hear the noise. The brake pedal was applied and released a few times while recording.


The noise disappears after a few seconds but it will get back on every time I release the break pedal. I can’t hear it when I am on the road but it might be still there.

Any suggestions would be appreciated.

Thanks in advance.
 
Last edited:

alexanderfoti

MBO Forum Supporter
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Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
Sounds like potentially the vacuum pump
 

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