
Old Audi A4 models do not have built-in Bluetooth. However, it can be retrofitted. The steps to connect Bluetooth after installation are as follows: Turn on the Bluetooth on your phone and the car's Bluetooth. Note that the device should be set to 'visible to everyone'; Use your phone's Bluetooth to search for nearby available devices, or use the car's Bluetooth to search for nearby available devices; After searching, the name will be displayed (Audi car Bluetooth names are usually AudiUHV). Click on it, and the system will ask if you are ready to pair with it. Press 'Yes' or 'OK'; For the first connection, you need to enter its password. The default password is usually 0000 or 1234. If not, check the Bluetooth settings on your phone to see what the default password is. After entering the password, press 'Yes' or 'OK' to complete the connection; Once connected, you can enter the dialing interface from the navigation main screen to make and receive calls, and you can also import the phone's contacts into the navigation system.

I've driven an older model Audi A4 for many years, purchased in 2006. The Bluetooth functionality is actually built into the multimedia system of the center console, not located in a separate position. After starting the car, turn on the color screen, press the menu button or rotate the knob to switch to the phone or settings options, where you can find the Bluetooth switch. I used it this way in my first car; when pairing, just enter the default PIN code 0000 or 1234. The Bluetooth location in the settings is quite convenient, making phone calls while driving safer. If you can't find it, it might be because the early model has lower configurations, Bluetooth isn't enabled, or the hardware doesn't support it. I recommend checking the owner's manual to confirm the model details or visiting a 4S store for an upgrade. If the Bluetooth signal is unstable in some older cars, restarting the MMI system can solve the problem. Don't worry; it's not too complicated.

I often help friends with car-related matters. For the Bluetooth settings in an old Audi A4, you need to operate it in the MMI interface. First, start the engine and wait a few seconds for the system to self-check. Then, look at the central control display, select the Communication section from the main menu, and you'll find the Bluetooth option switch inside. The setting is located in that menu, not a physical button. When pairing your phone, keep it closer for better signal. If Bluetooth doesn't appear in the menu, it might be a control unit malfunction or outdated software—consider visiting a professional repair shop. Bluetooth became standard in older cars mostly after 2008; models before that might not have it installed. You can try an external Bluetooth adapter connected to the Aux port. After connecting via Bluetooth, test the call quality to ensure it doesn't interfere with driving.

It's quite rare to see young people driving an old Audi A4, but the Bluetooth location isn't hard to find. After starting the car, check the screen menu and navigate to the phone settings to turn on Bluetooth. The location is integrated into the system, making it easy to pair with a phone. Older cars lack the advanced features of modern vehicles, but common issues are few—just pay attention to safety.


