Ok, hmm. Once a long time ago (like 6 months), the X3 refused to start on a cold start. So I took the key out, tried again, and this time it started with a rough idle and the DSC, Brake, and transmission fault lights came on in Yellow. Shifting was very rough and irratic. Shut it off for awhile as I washed the car. Then when I fired it back up, the lights weren't there anymore and everything was normal again. Quite an anamoly