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Re: Engine knocking/clacking from 2013 Mercedes C250 1.8t
Posted to Technical Discussion Forum on 2/22/2021 1 Reply


... I agree with Bill...that is something bouncing around in a chamber...LOOK with a bore scope for indents...I would think the plug electrodes would take a beating....Try disabling sparh to each cylinder and note any change.

... Dan H.

... Hobbs

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