My 2011 has been having this stumble at idle for a while now, maybe a couple years. As far as I an tell it doesn't effect performance at all. It does it at pretty much all RPM ranges, but I notice it more when idling and at load between 2-3000 or when cruising. I just replaced plugs and have a new fuel filter coming. Just wonder if anyone of the Merc guys out there can lead me in the right direction. I want to try simple stuff before I end up taking it in.
Thanks Rob
https://www.youtube.com/watch?v=rM-WyAnPZAk
Thanks Rob
https://www.youtube.com/watch?v=rM-WyAnPZAk
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