S63 Transmission Issues
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'19 G63 Ed 1,'18 M5, '16 G63,'12 458 , '11 E63, Brabus SL55-K8, '10 S63, '94 E500 "Wolf", '91 560SEC
S63 Transmission Issues
Trying to get some guidance. Car is a 2014 S63 with 28,000 miles. Took car in for service last week with complaints of jerky transmission at slow speed worse when it is in Sport mode. Dealer updated the powertrain and transmission computers.
This made the issue worse, especially in Sport mode on the 2-1 downshift the car almost slams into first gear. The next option they thought was to change the fluid and filter which is due at 40,000 miles anyway. So I go to pick the car up and the service advisor thinks something isn't right with the car.
I get in and the transmission seems to be slipping. The car won't engage until 1500 or so RPM's same thing in reverse.
Fast forward to this morning, the tech checks the fluid level and it is correct. No stored faults and does the wet-clutch adaptation.
At this point the car is smooth in Comfort. In Sport it is still jerking on the 2-1 downshift. They claim the adaptation needs to be done again when the car is cold.
Just need some advice, I know some '14 cars had transmission issues. Should I opt for transmission replacement?
Thanks
This made the issue worse, especially in Sport mode on the 2-1 downshift the car almost slams into first gear. The next option they thought was to change the fluid and filter which is due at 40,000 miles anyway. So I go to pick the car up and the service advisor thinks something isn't right with the car.
I get in and the transmission seems to be slipping. The car won't engage until 1500 or so RPM's same thing in reverse.
Fast forward to this morning, the tech checks the fluid level and it is correct. No stored faults and does the wet-clutch adaptation.
At this point the car is smooth in Comfort. In Sport it is still jerking on the 2-1 downshift. They claim the adaptation needs to be done again when the car is cold.
Just need some advice, I know some '14 cars had transmission issues. Should I opt for transmission replacement?
Thanks
Super Member
Joined: Jan 2007
Posts: 766
Likes: 47
S, GL
It has been the nature of these cars, some are much worse than others
Try a tranny reset on your own, see if it helps
TRANSMISSION RESET - if you have KEYLESS GO do not remove the Start button
* Press Start button twice, this sets it to key position 2
* Floor gas pedal for 10 seconds
* Press Start/Stop once. This turns it OFF
* Release gas pedal and wait two minutes
* Then start the engine and begin driving
Try a tranny reset on your own, see if it helps
TRANSMISSION RESET - if you have KEYLESS GO do not remove the Start button
* Press Start button twice, this sets it to key position 2
* Floor gas pedal for 10 seconds
* Press Start/Stop once. This turns it OFF
* Release gas pedal and wait two minutes
* Then start the engine and begin driving
Senior Member
Joined: Jan 2017
Posts: 485
Likes: 74
From: Marina Del Rey, CA
2015 MBZ S 550
It has been the nature of these cars, some are much worse than others
Try a tranny reset on your own, see if it helps
TRANSMISSION RESET - if you have KEYLESS GO do not remove the Start button
* Press Start button twice, this sets it to key position 2
* Floor gas pedal for 10 seconds
* Press Start/Stop once. This turns it OFF
* Release gas pedal and wait two minutes
* Then start the engine and begin driving
Try a tranny reset on your own, see if it helps
TRANSMISSION RESET - if you have KEYLESS GO do not remove the Start button
* Press Start button twice, this sets it to key position 2
* Floor gas pedal for 10 seconds
* Press Start/Stop once. This turns it OFF
* Release gas pedal and wait two minutes
* Then start the engine and begin driving
Thanks!
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AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
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From: North Scottsdale, AZ
'71 Pinto
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From: Marina Del Rey, CA
2015 MBZ S 550
Thread Starter
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Joined: Nov 2005
Posts: 844
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'19 G63 Ed 1,'18 M5, '16 G63,'12 458 , '11 E63, Brabus SL55-K8, '10 S63, '94 E500 "Wolf", '91 560SEC
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MBWorld Fanatic!
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From: 2000 ft over the FL coast in a B-17
Various
The current 63 trans (MCT) has had its share of issues with shift quality (there is no torque converter, it utilizes a wet clutch)...there are several threads about this on the AMG forums.
Last edited by RJC; Jan 28, 2017 at 08:17 PM.
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Joined: May 2002
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From: Land of 10,000 lakes
AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
It tells you how to operate your vehicle, nothing else. Diagnostics, tips & tricks, etc. are not meant for that and the lack thereof doesn't mean it doesn't exist.
That said, if you spend a little time here one the forum you find many helpful posts but it's up to you to believe them or not.
What does help is not to ask for things that have been posted hundreds of times over. A quick search would have shown that this procedure exists and what it does...
Last edited by Wolfman; Jan 28, 2017 at 08:23 PM.
Senior Member
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2024 E350
The method he told you to reset the transmission is the truth. It works on nearly all Mercedes cars. I've been doing it on my E-class for years. Keep in mind it's only temporary.
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S63
S63 transmission issues
My s63 has suffered from the same issues for a couple years. After many visits where the dealer had the car sometimes for over a week “testing” they always defalted to resetting the codes to factory settings. Finally on this last visit I got someone to take it seriously and they found antifreeze in the transmission fluid, now they are replacing the transmission and radiator. They say they never tested it before because they never see this type of issue. I have a feeling it’s a bigger problem than they want to admit. Hope this is the fix.
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From: Corona Del Mar, CA
2019 SL450, 2019 E450 Luxury Trim Wagon, 2024 BMW I7 xDrive60
My s63 has suffered from the same issues for a couple years. After many visits where the dealer had the car sometimes for over a week “testing” they always defalted to resetting the codes to factory settings. Finally on this last visit I got someone to take it seriously and they found antifreeze in the transmission fluid, now they are replacing the transmission and radiator. They say they never tested it before because they never see this type of issue. I have a feeling it’s a bigger problem than they want to admit. Hope this is the fix.
Seriously though, the transmission problems posted on this site for various 63 models are so voluminous, you would think that some sort of a class action lawsuit would be in order. I mean, these cars are expensive and driven by rich people. Enough is enough already. I’d tell them I want my money back or I’m filing a law suit.
