Originally Posted by weasel56

If your car is a newer car like an E90 or E60 that doesn't go by "oil service/inspection I or II" but gets the "standard scope" + whatever other services are needed then you reset it with the GT1. Otherwise you reset it through the vehicle.

What year is your X5? Do you have the round 20 pin connector under the hood or just the OBDII 16 pin connector under the dash.

If it is just the 16 pin connector then you reset it through the button on the left of the cluster. (described in an article on the homepage I believe)