recently my R56 started to lose power on a cold start (on full acceleration it would grafually build up speed as opposed to usual) also the fan wpuld kick in even before i fully start the car and would remain on throughout the drive and when returned home even if it was a 3 min drive to...
For those of you with a ScanGauge or any other OBD-II reader, here is a list of all BMW fault codes that could come up when you have a fault:
B0001 PCM Discrete Input Speed Signal Error
B0004 PCM Discrete Input Speed Signal Not Present
B0005 In Park Switch Circuit Malfunction