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 Fob Battery on an Audi A3

Model: Audi A3 8Y, MK 4 - Years 2020-2026
Part: Key

Replacing the battery in the key fob of an Audi A3 is a simple and quick operation. Take the key fob and first press the button located near the upper corner of the casing to release the key inside. Now take a flat-head screwdriver and insert the tip into the central slot on the back of the fob; leverage with the screwdriver to separate the battery compartment from the rest of the fob. Open the battery compartment cover and proceed to replace the battery. The required battery model is a flat CR 2032 3V.

Updated on 26 June 2026 by ScegliAuto

Video tutorial

Related tutorials

How to Change the Key Fob Battery of an Audi A3
How to Change the Key Fob Battery of an Audi A3
Audi A3 (2003-2013 / MK 2, 8P) How do you change the battery of the key fob for an Audi A3? Let's see in this video how to proceed with the replacement. Take your key fob and press…
Replace the Key Fob Battery of an Audi A3
Replace the Key Fob Battery of an Audi A3
Audi A3 (2003-2013 / MK 2, 8P) Replace the key fob battery of your Audi A3 by following simple steps. Take your key fob and press the metal key release button. Once the metal key i…
How to Replace the Key Remote Battery in an Audi A3
How to Replace the Key Remote Battery in an Audi A3
Audi A3 (2012-2019 / 8V, MK 3) This brief guide provides instructions on how to disassemble and replace the battery of the remote key for an Audi A3. First, take the remote in hand…

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