Details on our Getrag/Magna 7DCL750 DCT Trans, and a Request for Repair Manual
im in canada so dont think fidelity would offer anything. Besides, still wont make sense to spend thousands on warranty for what seems to be a bad design. Oh well ill just get rid of the car sooner than I had initially planned.
still curious if theres anyone with a high mileage GT and if owners have experienced any trans issues
still curious if theres anyone with a high mileage GT and if owners have experienced any trans issues
Over the years, I’ve noticed that most complaints come from users running Stage 1 or higher tunes. As I mentioned in a previous post, this transaxle is designed to handle 750Nm, with an upper limit of around 820Nm. Most Stage 1 tunes exceed 820Nm at low RPM, putting extra stress while on the first and second gears. THAT alone can lead to seal leaks and potentially more severe issues.
Note that even the AMG GT Black Series was limited to 800nm
the important thing and contrary to the Ferrari concept that this transaxle is “filled for life”, DO a fluid service every 30,000 miles or 3 years
also, extended warranty is always a good idea on this expensive to repair platform (unless you have abandon resource of funds)
I assume AMG received clearance and warranty approval from Getrag to push 800Nm for the Black Series. but I haven’t seen any supporting documentation confirming this or about any modifications made to the transaxle to raise the limit. I also haven’t come across any official reference to the 820Nm limit.
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2016 AMG GTS Edition 1
Again, from what I read on the FB page, this is a time issue, not mileage, that will effect all trannies eventually. However, I don't think anyone can say with 100% certainty that this is true because 100% of vehicles with this transmission has not been effected. Some will say "yet."
I would assume that if literally EVERY single GT transmission failed because of this, there would be a class action suit.
So this is what I'd recommend if you're worried about it. Get a Fidelity warranty. I have a contact if you want it. And follow the recommended transmission services. That way, IF something does fail, your warranty will cover it. And YES, the Fidelity platinum warranty will cover it according to my Rep.
I would assume that if literally EVERY single GT transmission failed because of this, there would be a class action suit.
So this is what I'd recommend if you're worried about it. Get a Fidelity warranty. I have a contact if you want it. And follow the recommended transmission services. That way, IF something does fail, your warranty will cover it. And YES, the Fidelity platinum warranty will cover it according to my Rep.
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2019 AMG GTC Solar Beam Yellow
Trenton O. Gibson
Advertising & Marketing Manager
Highline Autos
Direct: 602.909.9216
Office: 480.348.0777
www.highline-autos.com
I'm in Washington state 😁
Interesting. I just compared the amount I paid to Highline Autos in March 2024 for a 36-month/36,000-mile plan with a $250 deductible to the quote I received from Steingold today. I ran the comparison twice—once using the same mileage and plan details from March 2024, and again with my current mileage—and in both cases, Steingold’s quote for the Fidelity Platinum plan came between 17-23% lower.
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2019 AMG GTC Solar Beam Yellow
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Joined: Mar 2025
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2016 AMG GTS Edition 1
I just checked and thought it was an even bigger difference but that was actually Gold coverage cost. The platinum is still just over $1k more from him. I sent him an email. Thanks again!
Last edited by GCT33; Apr 1, 2025 at 02:19 PM.
SPONSOR
Joined: Apr 2021
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From: Scottsdale, Arizona
2001 E55AMG
@GCT33 @G. P @GTConn PM's have been sent, I'd appreciate if you'd read it completely.
Trenton O. Gibson
tgibson@highline-autos.com
Highline Autos
Direct: 602.909.9216
Office: 480.348.0777
Trenton O. Gibson
tgibson@highline-autos.com
Highline Autos
Direct: 602.909.9216
Office: 480.348.0777
Senior Member
Joined: May 2023
Posts: 312
Likes: 146
2019 AMG GTC Solar Beam Yellow
@GCT33 @G. P @GTConn PM's have been sent, I'd appreciate if you'd read it completely.
Trenton O. Gibson
tgibson@highline-autos.com
Highline Autos
Direct: 602.909.9216
Office: 480.348.0777
Trenton O. Gibson
tgibson@highline-autos.com
Highline Autos
Direct: 602.909.9216
Office: 480.348.0777
SPONSOR
Joined: Apr 2021
Posts: 1,567
Likes: 475
From: Scottsdale, Arizona
2001 E55AMG
Trenton O. Gibson
tgibson@highline-autos.com
Highline Autos
Direct: 602.909.9216
Office: 480.348.0777
Member
Joined: Dec 2007
Posts: 155
Likes: 30
From: OH
2017 Audi R8 V10 Plus
Does anyone know if this affects all GT’s? GT R’s were released a couple years later so were they updated at all? What about the facelifted 2020+? Any revisions in the part numbers between these cars?
Member
Joined: Feb 2025
Posts: 155
Likes: 27
From: Rome, Italy
AMG GTR 2021 (Euro version)
for what I've found around, it seems that the issue was affecting earlier models only, then MB applied some countermeasure on production, but I couldn't find any production date or VIN cut number... guess face-lift models should be ok
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2019 AMG GT R
Last edited by untamedd; Apr 9, 2025 at 04:58 AM.
Newbie
Joined: Mar 2025
Posts: 5
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From: Orlando, FL.
2020 Mercedes-Benz AMG GTC
Hey guys my trans on my 2020 GTC seems to be running really hot. It will get over 200f when sitting in traffic on a normal basis. Seen it get as high as 230f and this is not spirited driving this is just stop and go traffic. It starts acting weird when it gets around 200f. My question is does anyone have an official spec on “ Normal “ operating temperature for this transmission? Or what do you guys normally see temp wise when cruising and when sitting in traffic?
MBWorld Fanatic!
Joined: Jul 2011
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2019 AMG GT R
Hey guys my trans on my 2020 GTC seems to be running really hot. It will get over 200f when sitting in traffic on a normal basis. Seen it get as high as 230f and this is not spirited driving this is just stop and go traffic. It starts acting weird when it gets around 200f. My question is does anyone have an official spec on “ Normal “ operating temperature for this transmission? Or what do you guys normally see temp wise when cruising and when sitting in traffic?
I guess these cars just arent a fan of traffic especially since its a ‘dry’ dct as opposed to wet.
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Joined: Mar 2025
Posts: 5
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From: Orlando, FL.
2020 Mercedes-Benz AMG GTC
I reached out to Mercedes-Benz and they tell me the normal operating temperature for the transmission in a 2020 AMG GTC is 170° F - 225° F
Last edited by Solarbeam AMG; Apr 18, 2025 at 10:15 AM.
Newbie
Joined: Mar 2025
Posts: 5
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From: Orlando, FL.
2020 Mercedes-Benz AMG GTC
I believe it could as well as I’ve hit 230F sitting in traffic. I love to find some good info on temps and effects on fluid. I came from a Nissan GT-R and there was a chart if the stored data shows the trans fluid hit certain temperatures it would effect the change interval.
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Joined: Jul 2011
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2019 AMG GT R
Will be interesting to observe the next couple of years and whether that brings out more of the 2018 and 2019 owners complaining about trans issues.
Last edited by untamedd; Apr 21, 2025 at 10:52 AM.
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2016 AMG GTS
I have a 2016 GTS now with over 120,000KM on it, about 75,000 miles for my American friends.Changed oil in it twice. Never had an issue and I drive it like it should be driven downshifting all the time. After reading all sorts of nonsense over the years I bought a complete engine torque tube and transaxle from an accidented GTC with about 3000 miles on it. Im pretty sure I can use the parts for my 2016 GTS. I was able to buy the complete tranaxle for $8000.00 CAD which is about $5700,00 USD. Have not used it yet but thought it was good for my peace of mind. If you are worried about transmission breakdown go buy a used one and hang onto it. For a car of this caliber it's a cheap price to pay....CHANGE YOUR OIL in transmission often!!!!
