Hi All, I've just bought a 2007 ML 320 cdi and have noticed that it seems to take ages to warm up in the morning even though we've had a relatively warm night. It doesn't start too fast either with a fair amount of unburnt diesel puffing out of the exhausts. It isn't too smooth with the gear changing up or down until it's really warm. The engine runs at about 1500rpm and the car seems to run away with me when accelerating or even braking. I've tried it on the paddle shifts but it is still racing away. It's still under warranty and I would be really thankfull if someone can shed any light on the problem. Thanks, Howard.