Originally Posted by xeno

I have 2006 X5 and I also fount BT module at the back of the vehicle. So I have the Passkey (PK), which is necessary for paring phone with BT in the car. If your X5 has MID with Telephone button on the right of MID, the pairing is quite easy. Switch on the key, you will find that next to telephone button, there is three LEDs, the upper most LED stay red, that means no connection.

Now, you press on the left of the Telephone button (on the telephone symbol), the display on MID will say: Please Wait............ Now, you turn on BT of your phone and start searching for new BT device. The phone will find BMWXXXXX, which is BT device of the X5. On the phone, you select that device, it will ask for Passkey, then you enter 1049 and after a while, it will conect. You will have to wait for several minutes before the red LED goes off. Then the phone is ready for use.

Hope that help.