[chadillac2000]

I've owned my F10 M5 for a few months now and have had this happen on three different occasions since taking delivery of the car. After a cold start of the car and shifting into reverse to get out of my garage, the idle will become suddenly erratic and has even stalled out before. If I let the car warm up for a few minutes after cold starting before moving it, the problem seems to be non existent. Even when the car has stalled out the one time, no codes were thrown to even check. Car seems to run and drive beautifully otherwise.

Could this be defective or dirty MAFs causing this? Just strange to me that shifting into reverse seems to be when the problem kicks in.