Have you paired your phone with the BMW bluetooth? It won't work until you do. Note that BMW uses different passkeys so old standbys like "0000" won't work. The passkey should be on a card that was tucked into your owner's manual. It is also printed on the bluetooth unit itself which is under the carpet in the trunk along the bulkhead between the passenger compartment. The dealer can retrieve the code for you via the computer, but may charge a fee - mine did it for free when I was there for other service.
To start the pairing, you hit the R/T button immediately after turning the ignition switch to the ON position.
Once you get it paired, I hate to say it but you are probably going to be disappointed with the voice quality - especially with the top down.
Last edited by keeton; 01-07-2013 at 03:40 PM.