2015 S Coupe 63 Transmission Question
Thread Starter
Member
Joined: Oct 2002
Posts: 246
Likes: 0
From: Arlington, Texas
2018 SL 65 AMG 2017 GLE 63S 2015 RAM RT
2015 S Coupe 63 Transmission Question
When I have the S Coupe in "S" mode and the transmission shifts from 2nd to 1st the transmission really "slams" into 1st gear. Is this normal because of aggressive engine/transmission combo?
Thread Starter
Member
Joined: Oct 2002
Posts: 246
Likes: 0
From: Arlington, Texas
2018 SL 65 AMG 2017 GLE 63S 2015 RAM RT
Took the S coupe to the MB dealership and the service manager indicated that the AMG transmission is very aggressive and the"Slamming" when shifting from 2nd to 1st is normal.
It's all that I can add but still don't like it.
It's all that I can add but still don't like it.
Super Member
Joined: Nov 2007
Posts: 784
Likes: 135
From: UK
2021 C63S coupe
Software upgrade required.
After which it will give you a few seconds When you come to a stop before shifting into first.
At present its trying to shift into first just as the vehicle is coming to a complete stop
And that's giving you the jerk.
After which it will give you a few seconds When you come to a stop before shifting into first.
At present its trying to shift into first just as the vehicle is coming to a complete stop
And that's giving you the jerk.
MBWorld Fanatic!
Joined: Oct 2005
Posts: 1,271
Likes: 1
From: CA
2010 CL65
MCT has been laughable POS for ~7yrs....not sure whom MCT mocks more: the inept AMG engineers or the affluent US custs who buy this junk despite well-known, unsolved issues
Even more laughable is notion of a new software update suddenly solving it
65 gearbox is vastly superior but AMG (even after 3yrs) remains unable to solve its annoying jerkiness in urban decels (though the downshift blips in mtn twisties driving are incredibly enjoying vs the boring (but smoother) 5-sp box of prior-gen CL65)
Even more laughable is notion of a new software update suddenly solving it
65 gearbox is vastly superior but AMG (even after 3yrs) remains unable to solve its annoying jerkiness in urban decels (though the downshift blips in mtn twisties driving are incredibly enjoying vs the boring (but smoother) 5-sp box of prior-gen CL65)
Super Member
Joined: Dec 2005
Posts: 785
Likes: 113
From: Scottsdale, Arizona
2020 S63 Coupe, 2006 Hummer H1 Alpha, 2018 McLaren 720S, 2022 Porsche 911 TurboS, 2022 Tesla Model X
MCT has been laughable POS for ~7yrs....not sure whom MCT mocks more: the inept AMG engineers or the affluent US custs who buy this junk despite well-known, unsolved issues
Even more laughable is notion of a new software update suddenly solving it
65 gearbox is vastly superior but AMG (even after 3yrs) remains unable to solve its annoying jerkiness in urban decels (though the downshift blips in mtn twisties driving are incredibly enjoying vs the boring (but smoother) 5-sp box of prior-gen CL65)
Even more laughable is notion of a new software update suddenly solving it
65 gearbox is vastly superior but AMG (even after 3yrs) remains unable to solve its annoying jerkiness in urban decels (though the downshift blips in mtn twisties driving are incredibly enjoying vs the boring (but smoother) 5-sp box of prior-gen CL65)
I've been reasonably satisfied with the performance of my 7sp-Speedshift MCT on my MY14 CLS63 - in C mode it is pretty smooth but does get jerky in S/S+/M - but these transmissions definitely are underperforming compared to what Porsche and BMW offer. Seems like AMG's preferred solution is to the use lower torque motors e.g. the 4L AMG V8 with the DCT, rather than develop or source a proper DCT that can handle up to 1000Nm of torque; it sounds like the smaller V8 will find its way into the future 63 models, starting with the 2017 E63, while the 65 models will get a modernized V12 with higher output, 4MATIC, and (presumably) a new transmission for MY18 or 19. I guess that makes sense from a marketing standpoint, because the current 63 to 65 performance difference is certainly not worth the $50k premium and the 63 is in fact faster at any reasonably street speed in the USA.
Last edited by Heisenberg; Dec 24, 2015 at 08:30 AM.
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Joined: Jan 2016
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2015 Mercedes C63
C 63 2015 Coupe
THe dealer was able to improve but not eliminate the harsh downshift on my car. The other problem of 0 acceleration 0 rpm increase when attempting to drive away from stop still exists. Oh and recently the engine rpm came up from idle but car didn't move for a couple of seconds??
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