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How to Connect Your Phone to a 2012 Audi A4

Model: Audi A4 B8 - Years 2007-2016
Part: Onboard computer

The Multi Media Interface (MMI) is an in-car user interface multimedia system developed and introduced by Audi. It consists of a single integrated interface that controls various devices and functions of the vehicle. To connect your Android smartphone to the car's MMI module for hands-free calling and accessing contacts directly from your phonebook, follow these steps:
- Activate the phone module of the MMI system;
- Allow the connection of the smartphone;
- Make the phone discoverable by turning on Bluetooth;
- Select the device;
- Grant permission by verifying the matching PIN codes;

Updated on 20 February 2026 by ScegliAuto

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How to Replace the Drive Belt

Disconnect and lift the bonnet, then disconnect the battery cables. The drive belt will likely be located on one of the two shorter sides of the engine, so if you do not have space to access the belt, you will need to remove any obstructing parts. Remove the tension on the belt by rotating the tensioner and then take off the belt. Check the condition of the belt, and before installing a new one, ensure it is the same as the one you just removed. Once the belt is removed, you can check the remaining pulleys and retrace the steps for reassembly.

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