[Damion0097]

It's a 2007 bmw 328xi sedan using the n52n engine. I drove home yesterday perfectly and to work this morning perfectly as well. When I got into my car after work I started it and it was idling very rough like a misfire with one of the spark plugs. Rpms going low then jumping high. Then smoke starting rising from the engine. As I went to go look it was coming from the header (bank 2) right after the catalytic converter.i then hear the sounds of error codes come up and they were not good. They were awd and dsc malfunction, dbc malfuntion, start off assistance inactive.

The last Job I had done to the car was the bank 2 sensor 1 O2 sensor. Does anyone have any idea what could have caused this and possible how much it may cost to fix. I plan on being it to Munich Motorsport as they are the only reliable shop I've seen near by and they work on bmws mostly.

[Sidewinderpb]

Not sure, but those malfunctions usually come up after disconnecting the battery.

[YGazis109]

Not sure what is going on with your car, but I do know Munich Motorsports and they are a very good! They know what they are doing and are good people! I go there for everything on my car also an n52