Bucking under heavy acceleration in S S plus
Thread Starter
Newbie
Joined: Jan 2021
Posts: 11
Likes: 7
2015 C63 AMG Coupe
Bucking under heavy acceleration in S S plus
I purchased a 2015 C63 with the 6.2 several months ago, and so far have had quite a few issues (40k miles). The car does have long tube headers and exhaust, though I do not know what tune it is running as it was purchased from a dealership. I have received some helpful feedback in another post in reference to the car running rough and blowing through O2 sensors frequently. I feel like this probably has something to do with a bad tune. My main concern is when I have the car in sport or sport plus, it bucks horribly while under heavy acceleration. I have to take my foot off of the gas, and easy back onto it for the bucking to stop. Has anybody experienced anything like this, and is this also a sign of a bad tune or something worse? It does this with traction control on and off. Just weighing the possibilities about how to proceed. (IE trade it for a new one 
Thread Starter
Newbie
Joined: Jan 2021
Posts: 11
Likes: 7
2015 C63 AMG Coupe
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Joined: Sep 2014
Posts: 3,647
Likes: 818
From: Worldwide
2007 Mercedes E63 AMG
bad tune. the computer is fighting back on what is being requested from the tune. a proper tune should not "request" anything. it should be what it is.
