M156 "surging" on acceleration?
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Member
Joined: Jun 2018
Posts: 93
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From: Dayton, OH
SL55 AMG, CLS55 AMG
M156 "surging" on acceleration?
Hello all! M156 issue for you. It's actually in my ML63. One out of every 4 or 5 trips now, I'm experiencing a weird - let's call it - surge and retreat when I accelerate. It also wants to shift down pretty much immediately as well in order to accelerate when it does this. The first time, I thought I was just THAT low on gas, but that's not it.Typically, shutting it off and re-starting it seems to take care of it.
What's also strange is that if I use the cruise control to accelerate, it doesn't do it at all.
It does have a eurocharged tune. Thoughts?
What's also strange is that if I use the cruise control to accelerate, it doesn't do it at all.
It does have a eurocharged tune. Thoughts?
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Joined: Apr 2009
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From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
It could be something simple like a loose vacuum hose, or clogged injectors. I would try some quality fuel injector cleaner first, this is much cheaper than paying for diagnostics.
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2007 Mercedes E63 AMG
flash your tune back to stock and see if that helps.
Thread Starter
Member
Joined: Jun 2018
Posts: 93
Likes: 19
From: Dayton, OH
SL55 AMG, CLS55 AMG
Finally, I was set to put a big stereo in it, so I replaced both batteries. That fixed it once and for all immediately. The aux. battery HAD flashed that it needed replaced periodically. But like most things, I ignored it.
Anyway, it was DEFINITELY the aux battery on mine. Hopefully that's it for yours too!
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Joined: Jun 2018
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C63 AMG W204
Have same problem on ML63, but aux battery?? are you serious? looks like big joke.
Have this on cold on slope in most, do you know what is it? esp?
Have this on cold on slope in most, do you know what is it? esp?
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