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

Replacing the Key Battery on an Audi A3

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

See other generations:
Video tutorial

Today, you will see a task that is really within everyone's reach. By pressing the designated button on it, remove the manual key from the rest of the casing.

At this point, extract the central part that contains the battery: done! As you can see, it is a really simple operation. Now it will be a piece of cake to extract it and replace it with the new battery you purchased (available at any hardware store or large supermarket and very inexpensive).

Reinsert the battery holder back into the remote and finally reassemble the manual key by reinserting it in place.


Updated on 5 May 2026 by ScegliAuto


Related tutorials

How to Replace the Key Battery in an Audi A3
How to Replace the Key Battery in an Audi A3
Audi A3 (2012-2019 / 8V, MK 3) Replacing the battery in the key of an Audi A3 model 8v is very straightforward. The steps to follow are: -insert a screwdriver into the bottom of th…
How to Replace the Key Battery of the Audi A3
How to Replace the Key Battery of the Audi A3
Audi A3 (2012-2019 / 8V, MK 3) If you own an Audi A3 8v (2012-2019) and the key has suddenly stopped working, do not rush to buy a new one as the solution may be much more economic…
Replacing the Remote Battery on an Audi A3
Replacing the Remote Battery on an Audi A3
Audi A3 (2003-2013 / 8P, MK 2) Need to replace the battery in your Audi A3 key? Let’s look at how to replace the battery. Take your remote key and, using a screwdriver, pry between…

    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