Ok, noob just joining your forum. I had a 325i and upgraded to a 2011 535i Xdrive Saphire Black with tan interior. Love this car...except... it stalls out when putting the throttle to it when I first start driving it. Seems that its only when its cold. I will start going down the road and i feel a pretty substantial jolt and then i get a "Drive-train" warning on the display and no RPMs. i coast to a stop and then turn the car off and then it starts right up and off i go. It won't do it again after it gets warm. Next morning, same thing. I've put new coils and plugs in it, (except #6, i can't get to it. ) Seems not to make a difference. It doesn't drive better or worse. I can get it so it doesn't do it by being real super light on the throttle...only increasing speed ever so slightly. So, now I can almost 'make ' it happen by giving it some more gas. I've read here and other posts about issues with the V8s but this is a straight 6. 3.0 twin turbo. I've also read in some posts about a stalling issue but they seemed to be during regular driving, not first thing when its cold. I hope this isn't something major. Just picked this car up. Any ideas would be appreciated.