rpm jumping

  1. L

    Slipping Gears / No electronic fault detected on the diagnostics

    Hi all :) I've been encountering what I think are transmission issues with my 2011 Mercedes C-Class Blue Efficiency Sport sedan lately. It feels like the gears are slipping, resulting in a less than smooth transition between shifts. When I accelerate, I notice a delay in speed increase despite...
  2. A

    Why is my RPM jumping so much?

    Here is a video: https://streamable.com/f6vnw7 Hello, I have a w204 c220 2012 and on idle my RPMs jump up and down and the whole vehicle shakes sideways in response. It’s very unpleasant to sit inside while stationary, but the issue mostly goes away after it reaches operating temperatures. I...

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