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I have a 2012 ML350 4Matic with about 51,000 miles on it. I am the second owner.
I noticed that on a warm restart there is a mild backfire, just a low poof. Doesn't do it on a cold start; and ambient temperatures have no effect, i.e., it does it on practically all warm restarts. What's going on? I talked to the substitute service manager (scheduler); he wasn't sure. Thanks in advance. Tom |
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