Jittering Revs
03-14-2019, 02:13 PM
#1
Junior Member
Thread Starter
Jittering Revs
Hey all,
I have a 2013 C300 with just a touch under 60k miles. In the last few months I have noticed that the cars rpms while just at idle tend to bounce a bit. It hovers right about 1 which is normal but needle jumps just a little every few seconds. I am not sure I would go so far as to say it is a rough idle but I swear I can sometimes feel the car shimmy a little as I am watching the revs bounce a bit (this is all at idle by the way). Any ideas as to what that would be? My spark plugs were changed and it has not resolved the issue (had to be replaced anyways). Service didnt seem to find anything wrong but I'd love to be able to have them check specific things.
Thanks!
I have a 2013 C300 with just a touch under 60k miles. In the last few months I have noticed that the cars rpms while just at idle tend to bounce a bit. It hovers right about 1 which is normal but needle jumps just a little every few seconds. I am not sure I would go so far as to say it is a rough idle but I swear I can sometimes feel the car shimmy a little as I am watching the revs bounce a bit (this is all at idle by the way). Any ideas as to what that would be? My spark plugs were changed and it has not resolved the issue (had to be replaced anyways). Service didnt seem to find anything wrong but I'd love to be able to have them check specific things.
Thanks!
03-16-2019, 09:55 AM
#2
Super Member
I had a similar thing happen to my 13. After several trips and complaints to the dealer they found there was a software update available for my cars Ecu and that fixed it. If you have warranty it should be covered.
