.....LOL 
7G Tronic Gearbox problem?
Thread Starter
Junior Member
Joined: Jun 2008
Posts: 45
Likes: 0
From: greece
C63AMG
7G Tronic Gearbox problem?
My gearbox (only when it's cold) doesn't change the gears smoothly as usually did......especially 2gear - 3gear.
I visited local MB service but they told me it's normal after 40000km....
Has anyone the same problem?
I visited local MB service but they told me it's normal after 40000km....
Has anyone the same problem?
Member
Joined: Oct 2007
Posts: 223
Likes: 0
From: Ottawa
2010 C63, 2003 C230 coupe
I am from Canada, in the winter it can get pretty cold. When its cold gear changes can be rough due to the temperature of fluids, parts...After driving for a while and the engine heats up to normal temperature it runs fine.
Senior Member
Joined: Sep 2008
Posts: 458
Likes: 0
From: SoCal
2009 C63, 2000 Nissan Maxima
i have the same issue...ONLY the first time i go from 2 -> 3...i have a few stop signs in my area and i only get a hard shift when im pulling out of my driveway to the first stop....
im at only 6600 miles...and always in S
im at only 6600 miles...and always in S
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Sep 2008
Posts: 4,336
Likes: 8
Porsche 991S, Cayenne S, 1972 BMW 3.0CS E9 Coupe
The fix has been a valve body replacement. You might want to do a search here; I think there are a few TSBs out on this.
MBWorld Fanatic!
Joined: Oct 2008
Posts: 1,521
Likes: 3
From: Central Florida
2013 Chevy 427 Torch Red
There have been issues with the 7G Tronic but primarily on non-AMG models. The issues are abrupt shifts from second to first (in S mode) and the 2 to 3rd gear hard (slow) shifts.
The fix has been a valve body replacement. You might want to do a search here; I think there are a few TSBs out on this.
The fix has been a valve body replacement. You might want to do a search here; I think there are a few TSBs out on this.
Member
Joined: Oct 2009
Posts: 195
Likes: 0
From: Richmond Hill - Markham area, Toronto, Canada
c63, prius
this is a normal thingy for electronic throttle and electronic gas pedal....at the beginning i have this problem....but soon after i install the Sprint Booster (electronic gas pedal hack).....i can feel the different in shifting and overall performance....But one thing, i have to warm the car at least 60 degree celcuis...before i go nuts with the car....otherwise i will be having shift delay, or shift shocks, worst case it happen...the car felt like it has a super racing clutch (hopping)....only drove 1800kms on my c63
Junior Member
Joined: Dec 2010
Posts: 31
Likes: 1
W202 (1999 C240) and W204 (2008 C63)
Folks,disagree on fluid warm up etc. I was getting hard downshift from 2 to 1 on cold start. Had it into a good dealer, they updated 7G an ECU software with latest and I've been driving it for a month now, all hard shifts cured.
