GLS Class (X167) Produced 2020 to present

Knocking noise when accelerating

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Old 06-11-2021, 04:07 PM
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2020 GLS 450
Knocking noise when accelerating

Hi all,

I have noticed that a noticeable knocking noise occurs when accelerating from a stop. It is a single knock/clunk that seems to come from the front of the car or below the engine somewhere.
It does not happen very often, but often enough to make me worry about it, has anyone else had this?
Old 06-11-2021, 04:44 PM
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1999 E300TD
i would return to the selling dealer and park my self on the service managers lap until the problem is identified and fixed
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chassis (10-16-2021), wolds (06-14-2021)
Old 10-16-2021, 04:37 AM
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11 E550, 16 AMG GTS, 13 S550
I had someone ignore it for 40,000 miles and it hasn't gotten worse. That is not advice, that is just data.

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