Originally Posted by upallnight

P codes are just generic codes. I would find someone that can scan the X with BMW specific scanning tools. Something may have gotten lost in the translation from the code that the X is throwing versus what the generic scanner is translating the code to be.

I would also look into or replace the Variable Valve Timing solenoid that controls the amount of oil going to the Vanos. Could be the solenoid is not actuating the vanos as intended.

Good Luck.