It may be one of your Module, you have to find out which on, behind your Driver side front headlight is a Module, which in my case was the on failed, and I had the same
codes, there are total of three Module, the other two 1 is on the Transmission itself and the third location I due not remember, anyway I just disconnected the Module and Trans Faile Mode was gone, so this was the Module which needed work, You can take it out by loosen 6 screws.

Just go and Check Modulemaster in Moscow,IDAHO there website you how to take the unit out and send in for Repair if this is your problem, it sure was mine Total cost
to me $325- and 5 years warranty. Everything fine now.
2000 X5 4.4i only 250 k on it one owner. Dealer quote $1795

Kuddel