How to Replace the Battery in an Audi A3 Key?

[LeLeonardo]

Audi A3 key battery replacement steps are as follows: 1. The Audi A3 key consists of two parts: an electronic key and a mechanical key. Press the button on the back of the key to remove the mechanical key. 2. After removing the mechanical key, you can see the battery core. Apply force to remove the battery core inside to expose the battery. 3. Simply take out the old battery and replace it with a new button battery. After installing the battery, insert it back into its original position. Here is more information about the Audi A3 key: 1. The Audi A3 key has three buttons: lock, trunk open, and unlock. 2. Press and hold the unlock button to lower all four windows simultaneously, and press and hold the lock button to raise all four windows simultaneously. 3. This function requires manual setup. Open the multimedia system, find the driving assistance settings to enable this feature.