When cold it seems that my clutch just does not want to let me smoothly start off. It's as if it engages and disengages until I am rolling fast enough. It only does this until it is up to temp. I live in Jersey, so it is pretty cold. Anyone know what could cause this? Just curious before I go to the dealer? I have late 06 build M5, in 09' they replaced SMG pump and repaired vanos, otherwise it has been fine.