Is there anyway to pair a iOS7 i-phone with a bluetooth capable VW Passat?

I've just bought a 60 plate VW Passat which is Bluetooth capable. It doesn't allow me to pair my i-phone 5 with iOS7 to it. I have reset the Multi Functional Display in my car to Factory Settings, and have deleted any paired devices with my i-phone. It still cannot pair the two. Is ther any way to do so?