E63 AMG Shifting Question Answered (by AMG)
01-19-2008, 02:30 AM
#1
MBWorld Fanatic!
Thread Starter
Join Date: Oct 2007
Location: San Jose, CA
Posts: 1,717
Likes: 0
Received 17 Likes
on
11 Posts
2007 E63 w/P30 and Eurotech CF Diffuser
E63 AMG Shifting Question Answered (by AMG)
The following question was raised by one of our Private Lounge members regarding the shifting of their E63.
"As another member have expressed already, I too have experienced difficulties shifting from 1st to 2nd in manual mode without hitting the rev limiter. It seems that the red light (for the up-shift) comes on way too early before the rpm red-lines?
In S mode, when I floor the gas pedal, the car will shift as follows:
From 1st to 2nd @ 6200 rpm
From 2nd to 3rd @ 7100 rpm
From 3rd to 4th @ 7100 rpm
From 4th to 5th @ 7100 rpm
So as you can see, every gear redlines properly except for 1st gear which never redlines. I've taken the car to 5 different dealerships and they all say that nothing is wrong. I've also tried 4 other 63 vehicles and they all behave the same way.
Is there a reason the car does not redline in 1st gear?"
The response to this question from Mercedes-AMG is as follows:
Many factors influence the exact shift point of the AMG SPEEDSHIFT 7G-TRONIC transmission.
Due to the dynamic nature of the shift between 1st and 2nd gear, this shift is initiated slightly earlier than the later shifts and results in optimum performance of the drivetrain.
The exact shift initiation point may Vary slightly via the tachometer but it is being managed for optimum performance at all times.
"As another member have expressed already, I too have experienced difficulties shifting from 1st to 2nd in manual mode without hitting the rev limiter. It seems that the red light (for the up-shift) comes on way too early before the rpm red-lines?
In S mode, when I floor the gas pedal, the car will shift as follows:
From 1st to 2nd @ 6200 rpm
From 2nd to 3rd @ 7100 rpm
From 3rd to 4th @ 7100 rpm
From 4th to 5th @ 7100 rpm
So as you can see, every gear redlines properly except for 1st gear which never redlines. I've taken the car to 5 different dealerships and they all say that nothing is wrong. I've also tried 4 other 63 vehicles and they all behave the same way.
Is there a reason the car does not redline in 1st gear?"
The response to this question from Mercedes-AMG is as follows:
Many factors influence the exact shift point of the AMG SPEEDSHIFT 7G-TRONIC transmission.
Due to the dynamic nature of the shift between 1st and 2nd gear, this shift is initiated slightly earlier than the later shifts and results in optimum performance of the drivetrain.
The exact shift initiation point may Vary slightly via the tachometer but it is being managed for optimum performance at all times.
01-19-2008, 08:59 AM
#3
Senior Member
Join Date: Jan 2003
Posts: 269
Likes: 0
Received 0 Likes
on
0 Posts
E63, SL 550 Sport,C63 Coupe On the Way!!
John do you or anyone know the shift times in milisec for each mode and each gearchange? It would be nice to compare to other cars to see where we are at and possibly for improvement
01-19-2008, 12:32 PM
#4
MBWorld Fanatic!
Join Date: Nov 2006
Location: California, USA
Posts: 9,137
Likes: 0
Received 4 Likes
on
4 Posts
E63 P30, CL500 Sport
This was my third time asking that question, I'm glad they finally answered it. So are they saying, it's better to shift early in first?
Sometimes, my car will shift at 7000 rpm from 1st to 2nd gear, and it does feel that the car becomes faster and stronger when doing so, but now they're saying maybe not
Sometimes, my car will shift at 7000 rpm from 1st to 2nd gear, and it does feel that the car becomes faster and stronger when doing so, but now they're saying maybe not
