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 Battery in an Audi A3 Key?

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

The Audi A3 key is designed so that you do not need to remove the blade and open the entire remote to replace the battery. The only thing to do is open the flap on the back of the remote using a small flathead screwdriver. This must be small because its tip goes into the appropriate slots that allow you to release the catches of the flap. Once this is removed, you can use the same screwdriver to extract the battery and replace it with a new one. The battery to use is a CR2032 button cell.

Updated on 1 July 2026 by ScegliAuto

Video tutorial

Related tutorials

Replacing the Remote Battery on an Audi A3
Replacing the Remote Battery on an Audi A3
Audi A3 (2003-2013 / MK 2, 8P) 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…
How to replace the battery of the Audi A3 key
Audi A3 (2012-2019 / 8V, MK 3) When the malfunction message of the key appears on the instrument panel, the cause is almost always a depleted battery. In this case, simply replacin…
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…

Other guides you may be interested in

How to reset the tyre pressure warning light on the Suzuki Jimny?

To reset the tyre pressure warning light on the Suzuki Jimny, first inflate the tyres to the pressure value indicated on the corresponding sticker: this is located at the bottom of the driver's door pillar. Once the tyres are inflated, insert the ignition key and turn on the instrument panel: select the screen that indicates the tyre pressures, checking that the values change. After a few seconds, the tyre pressure warning light will automatically turn off.

Watch the video!


by ScegliAuto

More videos