Hi,
Did you solve the problem with your connection? I think im having the same issue.
If i get in to my car (2005 3 series with built in bluetooth) it pairs no problem, address book is there etc etc, however if i answer a call it drops the connection and goes straight to my phone. If i try and dial out it does the same. However, if i delete the pairing, and then go through the pairing excercise again it will work until i switch the car off.
Please help, and by the way, ive had wireless off and on and it is the same
Cheers
Phil