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

How to Replace the Key Battery in an Audi A3

Model: Audi A3 8V, MK 3 - Years 2012-2019
Part: Key

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 the remote; -remove the cover; -take out the battery; -insert the new battery; -close the cover; The battery to use for this remote model is a CR2032, 3 Volt. After replacing the battery, you need to be near the vehicle to test its functionality. If the key does not work or is not recognised, it will need to be reprogrammed.

Updated on 14 September 2026 by ScegliAuto

Video tutorial

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 / 8Y, MK 4) 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…
How to replace the battery of the Audi A3 8V key
How to replace the battery of the Audi A3 8V key
Audi A3 (2012-2019 / 8V, MK 3) To replace the battery in the key of your Audi A3 8v, you only need a flathead screwdriver and, of course, a new perfectly compatible battery, specif…
How to Replace the Key Battery in the Audi A3
How to Replace the Key Battery in the Audi A3
Audi A3 (2020-2026 / 8Y, MK 4) To replace the battery inside the key of your new Audi A3 mk4 (year 2020-2023), you only need a few simple steps. First, remove the physical emergenc…

Other guides you may be interested in

How to Adjust the Brightness of the Instrument Cluster on a Peugeot 3008?

To adjust the brightness of the instrument cluster on a Peugeot 3008, you need to turn on the ignition and access the settings via the menu located in the central area of the dashboard. In the screen that appears, select the "Display Configuration" option: now, by selecting the "Brightness" option, you can adjust it using the dedicated slider that will appear on the screen. The adjustment should be made with the headlights on as well as with them off. Once the adjustment is complete, you can turn off the instrument cluster.

Watch the video!


by ScegliAuto

More videos