Ml 350 cold start sound
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Junior Member
Joined: Mar 2009
Posts: 7
Ml 350 cold start sound
I have a 2009 ML 350 and when i start it in the cold (below zero) there is a weird grind noise from the engine. I was wondering if this is normal or something to be concerned about. Anyone?
Senior Member
Joined: Aug 2007
Posts: 174
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Hmm. It's still under warranty so I'd take it to the dealer but if they can't verify it, they can't fix it. Sounds like it may just be the secondary air injection which is normal but I can't tell you if that is it but nothing should sound like a grinding though.
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