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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

Boy that is a strange noise :( Almost sounds like something bouncing around in there. I dont think its pre-ignition, I think it is something mechanical hitting sheet metal. Or maybe a rod bearing ??? Sounds "tinny" to me. But a lot of times its hard to tell fr... Login to read more.

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