Do it yourself
Frequently asked questions about cars and motorcycles

Replacing Remote Control Battery on Audi A4 B9

Model: Audi A4 B9 - Years 2014-2024
Part: Key

In this video, you will learn how to replace the battery in the remote control of your Audi A4. The first step is to press the black buttons on the sides and pull the key out of its slot. Now, extract the battery tray and replace it with a new one. Specifically, it is a 2032 3V battery; the flat type commonly found in watches, bathroom scales, etc. Now, proceed in reverse, inserting the battery back into its slot, then put the tray back into the key and insert the metal key back in place. Now your remote control will function properly again.

Updated on 30 April 2026 by ScegliAuto

Video tutorial

Related tutorials

Audi A4 (2000-2004 / B6) Let's go through the steps to disassemble and replace the key fob battery on the Audi A4 B6, second generation, in simple and quick steps. First, tak…
Audi A4 (2007-2016 / B8) If the battery in the remote for the Audi A4 is dead, replacing it is very simple. Let's see how to do it in the attached video tutorial. To replace …
Audi A4 (2000-2004 / B6) In this simple video tutorial, you will learn how to disassemble and replace the battery of the key remote for an Audi A4. First, take your remote an…

Other guides you may be interested in

How to Reset the Central Locking of the Volkswagen Golf 4?

If the central locking system of the Volkswagen Golf 4 is not working, it is likely necessary to reset the system: to do this, open the driver's door and detach the side panel of the dashboard next to the steering wheel. Under this panel, you will find the fuses, including the one for the central locking, which is indicated in the manual as number 14. To reset the system, remove this fuse from its housing, then reinsert it or replace it with a new one of the same amperage: this will reset the central locking system.

Watch the video!


by ScegliAuto

More videos