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      03-27-2010, 05:09 AM   #6
Second Lieutenant
anthonygilbo's Avatar

Drives: E46 M3
Join Date: Sep 2009
Location: Australia

iTrader: (0)

Originally Posted by SPQR M3 View Post
The rough running sound when cold is normal, it's a peculiarity of the 8 individual throttle butterflies I believe.

However, I have a Q for those with DCT: do you find that the car accelerates less smoothly when cold or even when just warm? ie when I have driven for a while, then stop the engine for a few minutes or so eg when I go the shops or pick up my son from school, I find that for a few minutes upon restarting the acceleration is a bit "gluggy". Is this normal?
I feel the same type of thing when mine is cold, but I don't seem to get it when it has been off for a couple of minutes. It needs to be switched off for about an hour for me to hear and feel the same tpye of thing. I think the computer definately restricts throttle response and revs when engine temp is down even slightly.