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 of 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

How to replace the key fob battery of an Audi A3? Here’s how to do it: take your key fob and press the button to release the metal key. Once extracted, remove the battery holder (as shown in the video). Take out the flat battery from the holder (after separating the two halves of the cover), and get a new one of the same size and voltage.

Refit the plastic battery holder into the key fob cover, and finally, insert the metal key back into the cover. Check the proper functioning of the key fob using the door unlock buttons.


Updated on 7 March 2026 by ScegliAuto


Related tutorials

How to Replace the Key Fob Battery in an Audi A3
How to Replace the Key Fob Battery in an Audi A3
Audi A3 (2020-2026 / MK 4, 8Y) The procedure for replacing the battery in the key fob of an Audi A3 requires a few simple steps. First, extract the metal key from inside the fob: t…
How to Replace the Key Fob Battery on an Audi A3
How to Replace the Key Fob Battery on an Audi A3
Audi A3 (2020-2026 / MK 4, 8Y) 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 uppe…
How to Replace the Key Fob Battery of an Audi A3
How to Replace the Key Fob Battery of an Audi A3
Audi A3 (2003-2013 / 8P, MK 2) .. How to replace the key fob battery of an Audi A3? Follow these steps: take your key fob and press the.. …

    Frequently Asked Questions

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

How to Open the Fuel Filler Flap in the Hyundai i30?

In this tutorial, you will learn how to open the fuel filler flap in the Hyundai i30, a very simple operation that follows the typical procedure of most vehicles. First, unlock the locks using the designated button on the remote, then open the driver's door, locate the release lever on the left side of the seat, and operate it. Next, move to the fuel filler flap, open it completely, unscrew the cap, and refuel as needed. To close the flap, simply press it gently.

Watch the video!


by ScegliAuto

More videos