Hello, Hoping someone can help - I have recently fitted a new transfer box which I have read needs the actuator motor to be calibrated. Only 1 main dealer for BMW on the IOW and they're telling me there is no calibration that can be done. Is there anyone with a copy of the TSI for this so I can print and show to them to get them to do it? Also when I code read there is one code in the transfer box relating to the oil change needs doing which I have done but it needs resetting. They have told me this is also not true and that there is no such thing! All help appreciated! Thank-you in advance :) Hannah xxx