As of January 2011, the Audi A3 comes in two trim levels, the 2.0 TDI, 2.0T. An optional Bluetooth Comfort Package is available on the Premium Plus versions of both A3 trim levels. The package allows for hands-free communication via the car's steering wheel. The Audi A3 is compatible with a wide range of Bluetooth-enabled mobile phones and digital music devices (see Reference 2). All you need to sync your A3 with Bluetooth is a compatible device and a few minutes.
Turn on your A3 to initiate pairing your device. Enable the Bluetooth connection by activating the "Search Devices" function on your phone.
Select the device beginning with "Audi UHV" and a string of numbers, then connect to it.
Enter a PIN number for the vehicle. If this is your first time connecting to the vehicle, enter the default code, "1234." You can change your code after set-up, using your mobile device.
Pair the phone to the vehicle. Make sure your phone's Bluetooth settings are set to "Permanent On" so that it connects to your A3 every time you're in the car. Refer to your phone's manual for specific settings instructions.
You must pair your mobile device within five minutes of turning your car on.