Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Replace the Key Battery for Audi A3

Model: Audi A3 8V, MK 3 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Key

See other generations:
Video tutorial

In this video tutorial, learn how to disassemble and replace the battery of the remote key for an Audi A3. First, take the remote in hand and pry open the sides with a sharp tool; now, open and remove the back cover of the remote to access the battery.

At this point, remove it with a sharp tool and replace it with a new one of the correct type (in this case, a 2032). Finally, reassemble it, inserting it the correct way and putting the back cover on; then, check its operation!


Updated on 12 April 2026 by ScegliAuto


Related tutorials

How to Change the Key Battery of an Audi A3?
How to Change the Key Battery of an Audi A3?
Audi A3 (2020-2026 / MK 4, 8Y) Changing the remote key battery for the Audi A3 is very simple and can be done by anyone. As shown in the video, all you need is a flat tool to lever…
Replacing the Key Battery on Audi A3
Replacing the Key Battery on Audi A3
Audi A3 (2003-2013 / 8P, MK 2) Replacing the key battery on an Audi A3? Remove the key cover to extract the battery. Take your ignition key and use a screwdriver to pry between the…
Replacing the Remote Battery of Audi A3
Replacing the Remote Battery of Audi A3
Audi A3 (1996-2003 / MK 1, 8L) Replacing the key of an Audi A3? Here’s how to disassemble the battery inside the remote key. Take your ignition key and press the button to release …

    Frequently Asked Questions

    • A3 2012-2019 - The key battery light on Audi A3 comes on: what does it mean? Read answer

How to Activate the Automatic Folding and Unfolding of the Wing Mirrors on the Jeep Compass

Follow these brief instructions to activate the automatic folding and unfolding of the external wing mirrors on the Jeep Compass. First, get inside the vehicle and turn on the ignition; then press the button located beneath the mirror glass adjustment to electrically open the mirror, as shown in the video. Pressing the button in the opposite direction will close the mirrors; by holding the button, the mirrors will open and close automatically!

Watch the video!


by ScegliAuto

More videos