View Single Post
      09-23-2008, 04:11 AM   #1
M3Rad
New Member
M3Rad's Avatar
7
Rep
29
Posts

Drives: 2008 BMW M3 DCT
Join Date: Aug 2008
Location: Los Angeles, CA

iTrader: (0)

New DCT Problem (sudden upshift)

This happened this weekend at an autocross. I wonder if this has happened to anyone else.


During a transition from a left turn to a right hairpin during braking, the car will upshift from 2nd gear to 6th or 7th gear on his own. It did this at every run (total of 12 runs), with the exception of the runs where I drove a slower pace through the same section to avoid the problem.

DCT was off, the problem happened with S3/S4 and S6 modes. I did not try the D (Automatic) modes. ECU in comfort, suspension in sport.

By the way, the car did not downshift from 3rd to 2nd gear at the two turns that I needed to downshift. It did it in the middle of the turn, throwing away my balance.
__________________
03 Celica GTS
04 Hummer H2
07 Cayman S
08 BMW M3
09 Scuderia
Appreciate 0