Car feels different after software update
Thread Starter
Junior Member
Joined: Jun 2012
Posts: 55
Likes: 7
2016 C63S AMG
Car feels different after software update
I brought my 2016 C63S in to the dealership for some perceived rough downshifts. The tech readapted the troubled gears and applied software update LI27.00-P-065346.
After the update, I noticed that the car just felt slower overall. Almost like it turned my C63S into a C63. One thing it causes also is a less positive 2-3 upshift. Almost like it delays the shift or drops torque before shifting.
Does anyone know what this LI27.00-P-065346 software update does? Or has had these issues? Is it even technically possible to put the wrong software in the car?
has anyone had these transmission issues? Thanks
After the update, I noticed that the car just felt slower overall. Almost like it turned my C63S into a C63. One thing it causes also is a less positive 2-3 upshift. Almost like it delays the shift or drops torque before shifting.
Does anyone know what this LI27.00-P-065346 software update does? Or has had these issues? Is it even technically possible to put the wrong software in the car?
has anyone had these transmission issues? Thanks
Member
Joined: Mar 2015
Posts: 198
Likes: 22
c63s sedan
im having a firmware update done right now on my car. from what my tech told me and from what others told me are in comfort the car is quieter but in sport+ and race its far louder. no mentions on engine power loss at all tho.
Super Member
Joined: Jun 2015
Posts: 643
Likes: 92
From: Houston, TX
'15 C63S
I brought my 2016 C63S in to the dealership for some perceived rough downshifts. The tech readapted the troubled gears and applied software update LI27.00-P-065346.
After the update, I noticed that the car just felt slower overall. Almost like it turned my C63S into a C63. One thing it causes also is a less positive 2-3 upshift. Almost like it delays the shift or drops torque before shifting.
Does anyone know what this LI27.00-P-065346 software update does? Or has had these issues? Is it even technically possible to put the wrong software in the car?
has anyone had these transmission issues? Thanks
After the update, I noticed that the car just felt slower overall. Almost like it turned my C63S into a C63. One thing it causes also is a less positive 2-3 upshift. Almost like it delays the shift or drops torque before shifting.
Does anyone know what this LI27.00-P-065346 software update does? Or has had these issues? Is it even technically possible to put the wrong software in the car?
has anyone had these transmission issues? Thanks
I don't know if this is the cause, but the transmission on our cars is adaptive and will adjust shifting harshness/timing/etc based on how the car has been recently driven. I can't remember how far back it'll log (I'd have to find the article I read about it), but if you drive the car hard, it'll shift harder. If you baby it, it'll shift slowly. Maybe the perceived slowness has to do with the transmission not learning your more-aggressive driving style yet.
Member
Joined: Sep 2016
Posts: 112
Likes: 7
C63S AMG Coupe
Any update on this? My 17 C63S coupe is in for a transmission update because of rough upshifts 3rd to 4th only occasionally and an occasionally slow (2-3 second) downshift. I'll let you know what my experience is after I get the car back.
Thread Starter
Junior Member
Joined: Jun 2012
Posts: 55
Likes: 7
2016 C63S AMG
Not really. They tried to smooth out the 2-3 upshift and I still feel like something isn't right. Almost like it drops rpms too much before the next gear. It feels like if you were driving a manual, and you shift snow enough to feel a slight drop in acceleration.
mechanic says it's normal, but I'd need to drive another c63 to really confirm. I felt like before the software update, each shift was very positive.
mechanic says it's normal, but I'd need to drive another c63 to really confirm. I felt like before the software update, each shift was very positive.
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Member
Joined: Jul 2016
Posts: 234
Likes: 31
From: Kent, UK
2018 E63S,2016 C63 S Edition 1 Coupe(gone), 2011 640D M Sports Coupe, 2015 435i M Sports Coupe
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Joined: Nov 2015
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C63s
I only see ONE bulletin/notice on the RO.
I'm not sure if the detailed instructions state to do multiple things in order to accomplish that bulletin, however, if you have a separate bulletin number that applies to the traction control issue, I would highly appreciate it!!!!!
A2A
I'm not sure if the detailed instructions state to do multiple things in order to accomplish that bulletin, however, if you have a separate bulletin number that applies to the traction control issue, I would highly appreciate it!!!!!
A2A
Member
Joined: Jul 2016
Posts: 234
Likes: 31
From: Kent, UK
2018 E63S,2016 C63 S Edition 1 Coupe(gone), 2011 640D M Sports Coupe, 2015 435i M Sports Coupe
I only see ONE bulletin/notice on the RO.
I'm not sure if the detailed instructions state to do multiple things in order to accomplish that bulletin, however, if you have a separate bulletin number that applies to the traction control issue, I would highly appreciate it!!!!!
A2A
I'm not sure if the detailed instructions state to do multiple things in order to accomplish that bulletin, however, if you have a separate bulletin number that applies to the traction control issue, I would highly appreciate it!!!!!
A2A
Member
Joined: Jul 2016
Posts: 234
Likes: 31
From: Kent, UK
2018 E63S,2016 C63 S Edition 1 Coupe(gone), 2011 640D M Sports Coupe, 2015 435i M Sports Coupe
I only see ONE bulletin/notice on the RO.
I'm not sure if the detailed instructions state to do multiple things in order to accomplish that bulletin, however, if you have a separate bulletin number that applies to the traction control issue, I would highly appreciate it!!!!!
A2A
I'm not sure if the detailed instructions state to do multiple things in order to accomplish that bulletin, however, if you have a separate bulletin number that applies to the traction control issue, I would highly appreciate it!!!!!
A2A
