Bluetooth problems with car for phone calls

I have searched and read many threads about this topic but have not seen a good answer. The devices in question are my N2 and my 2010 VW CC for hands free calling. When I first get into my car BT will connect and stay connected as long as I keep the phone active. As soon as I let it go to sleep BT disconnects but stays paired. If I make or get a call 50% of the time 3-5 seconds after the phone wakes up BT will reconnect and the call will go through my build in hands free. 50% of the time it shows paired but it is not connected and does not use the hands free. I checked my power saving options thinking it might be turning something off but I have power saving totally disabled. I never had this problem with my S2 or EVO 4G both of which I used in this car.

Any thoughts?