C-250 2012 has a rough/unstable rpm at idle
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Joined: May 2016
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C-250 2012
C-250 2012 has a rough/unstable rpm at idle
Hello Everyone:
I am having an issue with my rpm needle at idle, which seems to jump up and down without any visible sound change of the engine. Happens only in neutral and in park. Does not happen in Drive. When it drives it drives like a Ferrari. I am just afraid that this issue might be a symptom of something serious!
Any advice on this issue will be really helpful.
Thanks.
I am having an issue with my rpm needle at idle, which seems to jump up and down without any visible sound change of the engine. Happens only in neutral and in park. Does not happen in Drive. When it drives it drives like a Ferrari. I am just afraid that this issue might be a symptom of something serious!
Any advice on this issue will be really helpful.
Thanks.
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,282
Likes: 57
2013 C250 Sport
I've heard of this before but I seem to recall it wasn't serious.
I have the opposite problem. My car feels rough on a warm start. Almost like bad engine mounts of a vacuum leak. But I don't see the needle move that much.
My fan runs like crazy now that it is hot here.
I have the opposite problem. My car feels rough on a warm start. Almost like bad engine mounts of a vacuum leak. But I don't see the needle move that much.
My fan runs like crazy now that it is hot here.
Thread Starter
Newbie
Joined: May 2016
Posts: 3
Likes: 0
C-250 2012
I've heard of this before but I seem to recall it wasn't serious.
I have the opposite problem. My car feels rough on a warm start. Almost like bad engine mounts of a vacuum leak. But I don't see the needle move that much.
My fan runs like crazy now that it is hot here.
I have the opposite problem. My car feels rough on a warm start. Almost like bad engine mounts of a vacuum leak. But I don't see the needle move that much.
My fan runs like crazy now that it is hot here.
