Blown transmission or Drive shaft on track
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From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
Blown transmission or Drive shaft on track
Today on track I had transmission Overheating several times. In the past this happened I changed the fluid and filter and it was fine again. Last session heard a bang then car would not go forward. Won’t go into any gear including reverse. Spectators saw smoke when it happened. No codes which I thought was odd. Sound like transmission is toast ? Could it be the CF drive shaft separated ? I didn’t have the recall work done on it yet. Ughh.
there were never any slipping or rough shifts before this happened. Just loud bang then done.
Take to good Indy shop or dealership ?
there were never any slipping or rough shifts before this happened. Just loud bang then done.
Take to good Indy shop or dealership ?
Last edited by dllhg; May 31, 2024 at 01:26 AM.
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From: Overland Park, KS
‘24 BMW iX M60
I didn’t know there was a recall on the driveshaft on the GTRs; just some of the early GTS models.
It obviously sounds DCT related, at least to me since you’ve been pushing far more torque through the ‘box than stock, and doing it in a highly stressful manor multiple times.
Personally I would take it to your MB dealership to have it diagnosed/repaired, although in CA there may well be independent shops that are very familiar with the platform that might save you some money but either way it’s going to be expensive IF the DCT is toast.
Caveat: if you’re planning on keeping the car then searching for an independent shop that can upgrade the DCT would be worth the time spent, imho. If you know any local Nissan GT-R owners who’ve upgraded the GR6 in their car they might well be able to steer you towards a great transmission rebuild shop.
It obviously sounds DCT related, at least to me since you’ve been pushing far more torque through the ‘box than stock, and doing it in a highly stressful manor multiple times.
Personally I would take it to your MB dealership to have it diagnosed/repaired, although in CA there may well be independent shops that are very familiar with the platform that might save you some money but either way it’s going to be expensive IF the DCT is toast.
Caveat: if you’re planning on keeping the car then searching for an independent shop that can upgrade the DCT would be worth the time spent, imho. If you know any local Nissan GT-R owners who’ve upgraded the GR6 in their car they might well be able to steer you towards a great transmission rebuild shop.
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From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
It’s at dealer. Waiting for diagnosis. Could be related to the torque tube. I checked pricing and it’s 15k for a reman tranny from mercedes plus labor. 18k for brand new. Wow 🤯
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OP - did your GT R in fact have the Recall posted for your VIN for the CF DS? Or is this speculation/suspicion?
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18K is actually relatively inexpensive - this SAME Transaxle is 30-50+K on the Ford GT and Ferrari models which use it
So sorry to hear of your troubles, hope they get you sorted!
Please let us now of the diagnosis and progress.
If it turns out it's the Trans - there is a specialist in SoCal who is exceptionally knowledgeable and rebuilds these trans with great frequency (very first video in thread - Hollywood Mechanic), in addition to other members who have posted in this thread:
https://mbworld.org/forums/coupe-roa...ml#post8799000
Best of luck
So sorry to hear of your troubles, hope they get you sorted!
Please let us now of the diagnosis and progress.
If it turns out it's the Trans - there is a specialist in SoCal who is exceptionally knowledgeable and rebuilds these trans with great frequency (very first video in thread - Hollywood Mechanic), in addition to other members who have posted in this thread:
https://mbworld.org/forums/coupe-roa...ml#post8799000
Best of luck
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2014 cls63 a amg. 2018 AMG GTR
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Some forum members with MY '18 GT Rs even received a Recall Notice for the CF DS update.
Have you tried checking this MB website below against your VIN? What does it show?
https://www.mbusa.com/en/recall
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From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
Weird. MB should know with precision which VINs are affected by the Older/Bad batches of CF DS, as everything and its momma is coded/scanned.
Some forum members with MY '18 GT Rs even received a Recall Notice for the CF DS update.
Have you tried checking this MB website below against your VIN? What does it show?
https://www.mbusa.com/en/recall
Some forum members with MY '18 GT Rs even received a Recall Notice for the CF DS update.
Have you tried checking this MB website below against your VIN? What does it show?
https://www.mbusa.com/en/recall
Junior Member
Joined: Mar 2021
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2016 AMG GTS
If you need a carbon fiber drive with torque tube, all assembled. Came out of accidented 2018 GTC. I have one with less than 5000km on it. Also have complete transmission from same car, 2018 GTC. I don't know if it is the same as a GTR. Located in Canada,
Thanks,
Paul
Thanks,
Paul
Thread Starter
MBWorld Fanatic!
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From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
Thread Starter
MBWorld Fanatic!
Joined: Feb 2013
Posts: 1,212
Likes: 228
From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
Super Member
Joined: Dec 2020
Posts: 564
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From: Germany
AMG GTR
Hi,
GTC have not the same Transmission
GTR / GTC
I. 3,08 / 3,40
II. 2,19 / 2,19
III. 1,63 / 1,63
IV. 1,29 / 1,29
V. 1,03 / 1,03
VI. 0,84 / 0,84
VII. 0,69 / 0,63
R. 2,79 / 2,79
Diff. 3,67 / 3,88
With the GTC tcu, it could also work (not checked)
Best regards
Stenzel
GTC have not the same Transmission
GTR / GTC
I. 3,08 / 3,40
II. 2,19 / 2,19
III. 1,63 / 1,63
IV. 1,29 / 1,29
V. 1,03 / 1,03
VI. 0,84 / 0,84
VII. 0,69 / 0,63
R. 2,79 / 2,79
Diff. 3,67 / 3,88
With the GTC tcu, it could also work (not checked)
Best regards
Stenzel
Last edited by Stenzel-Germany; Jun 2, 2024 at 03:05 PM.
Hi,
GTC have not the same Transmission
GTR / GTC
I. 3,08 / 3,40
II. 2,19 / 2,19
III. 1,63 / 1,63
IV. 1,29 / 1,29
V. 1,03 / 1,03
VI. 0,84 / 0,84
VII. 0,69 / 0,63
R. 2,79 / 2,79
Diff. 3,67 / 3,88
With the GTC tcu, it could also work (not checked)
Best regards
Stenzel
GTC have not the same Transmission
GTR / GTC
I. 3,08 / 3,40
II. 2,19 / 2,19
III. 1,63 / 1,63
IV. 1,29 / 1,29
V. 1,03 / 1,03
VI. 0,84 / 0,84
VII. 0,69 / 0,63
R. 2,79 / 2,79
Diff. 3,67 / 3,88
With the GTC tcu, it could also work (not checked)
Best regards
Stenzel
I know that one of the TCU functions is to act as an anti-theft mechanism. If you change a TCU unit, the car will not start. Should I conclude from your comment that the TCU is not tied to the vehicle's VIN, but to some code in the transmission unit only?
Is it possible to duplicate the original car's TCU into a 2nd TCU?
I'm asking because I haven't found solid references indicating that any of the sold TCU upgrades actually work (mainly in reference to gear change speed). Postings usually refers to "feelings" rather than measured facts. It would be interesting to compare a stock TCU and an upgraded one when done on the same day/track, but for that, you'd need two TCUs coded to the car. Any thoughts?
Last edited by G. P; Jun 2, 2024 at 03:43 PM.
Junior Member
Joined: Jun 2021
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From: Owasso (Tulsa) OK
AMG GTR, GT350, Raptor, X6
I'm sorry to hear that you are having issues. But you probably drive this platform harder than I see anyone doing it...time after time. I hope it's just a driveshaft and it's under the recall. I checked my vin on that platform and it came up with no recalls.
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Joined: Feb 2016
Posts: 260
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From: Canada
AMG GT-S, AMG C43, Ferrari Roma, Maserati MC20, Genesis GV70 Electrified
My 2016 GT-S had the driveshaft replaced at no cost. But as was a said above, even though my VIN was on the list for recalls, the dealer had to check the driveshaft itself to confirm it fell under the replacement requirement which it did.
Best of luck with your repair. I have had 3 failures on track with my GT-S. First one active motor mount failed on track, replaced under warranty. Then a couple of years later the high pressure power steering hose went (what a mess in the paddock and very expensive out of warranty fix!!) and an active transmission mount failed which I replaced myself. Not sure if pushing the car hard on track has anything to do with the failures though, but they did happen at the track.
Best of luck with your repair. I have had 3 failures on track with my GT-S. First one active motor mount failed on track, replaced under warranty. Then a couple of years later the high pressure power steering hose went (what a mess in the paddock and very expensive out of warranty fix!!) and an active transmission mount failed which I replaced myself. Not sure if pushing the car hard on track has anything to do with the failures though, but they did happen at the track.
Thread Starter
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From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
Update :
not transmission !! 😁. Right rear drive shaft broke. $3500. Much better than $18k plus labor. Still awfully steep for one driveshaft. They charge $350 per hour 🤯. Feel better knowing the trans is holding up. Trans was overheating. Checked records only 6 days since last pan drop and filter change. Only does about 50% of the fluid. Perhaps there is another issue causing it to overheat like a cooler ?
not transmission !! 😁. Right rear drive shaft broke. $3500. Much better than $18k plus labor. Still awfully steep for one driveshaft. They charge $350 per hour 🤯. Feel better knowing the trans is holding up. Trans was overheating. Checked records only 6 days since last pan drop and filter change. Only does about 50% of the fluid. Perhaps there is another issue causing it to overheat like a cooler ?
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From: Overland Park, KS
‘24 BMW iX M60
Update :
not transmission !! 😁. Right rear drive shaft broke. $3500. Much better than $18k plus labor. Still awfully steep for one driveshaft. They charge $350 per hour 🤯. Feel better knowing the trans is holding up. Trans was overheating. Checked records only 6 days since last pan drop and filter change. Only does about 50% of the fluid. Perhaps there is another issue causing it to overheat like a cooler ?
not transmission !! 😁. Right rear drive shaft broke. $3500. Much better than $18k plus labor. Still awfully steep for one driveshaft. They charge $350 per hour 🤯. Feel better knowing the trans is holding up. Trans was overheating. Checked records only 6 days since last pan drop and filter change. Only does about 50% of the fluid. Perhaps there is another issue causing it to overheat like a cooler ?
So glad it’s a relatively cheap, for a GTR, repair!
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From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
this was on track it overheated. Half way through sessions. I had five other track days since last oil change without it overheating. They can’t replace it all. Only about 50% each time. Drop pan and change filter.
Last edited by dllhg; Jun 4, 2024 at 01:56 PM.
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‘24 BMW iX M60
Thread Starter
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From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
