Couple nights ago, I ran my 760GLE (6cyl) for about a half hour with the heater running to thaw out the frozen sunroof motor so I could close the sunroof, which had stuck open at 1" when I tried to open it earlier on in the evening. During the entire time the car was on, it ran beautifully. I finished my work, shut it off and went inside. About a half hour later, I start my car to move it a few yards, and it sounds like it's running on three cylinders, shaking like it wants to fall out the bottom, and running really rich. It's been doing this ever since, and it seems that this is the only problem, and it doesnt change when the engine warms. This car has never puffed any blue on a cold start, so I don't think the plugs are fouled, but I don't know what the hell is wrong with my poor car.

Car is 6cyl, with 150k Km on it


any help appreciated! I'll provide more info if needed, I can't think of anything else off the top of my head.

thanks

CCC