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 a 2004 Audi A4

Model: Audi A4 B7 - Years 2004-2008
Part: Key

In this new guide for your 2004 Audi A4, discover how to replace the button battery inside the smart key remote. First, get a flathead screwdriver and use it to split the key cover in two. Once done, remove the back cover with your hands and locate the small dead battery inside. Finally, remove it and replace it with a new compatible battery. At this point, reassemble the cover correctly, and you're done.

Updated on 25 July 2026 by ScegliAuto

This video is currently unavailable

Related tutorials

How to Replace the Key Battery of an Audi A4?
How to Replace the Key Battery of an Audi A4?
Audi A4 (2004-2008 / B7) Start by pressing and holding the button on the top side of the key fob of your Audi A4, which will open the physical key. Then, using a flathead scr…
How to Replace the Key Battery in an Audi A4
How to Replace the Key Battery in an Audi A4
Audi A4 (2014-2024 / B9) Start by pressing and holding the button located on the back of the key fob for your Audi A4 to extract the physical key. Once you have removed the p…
How to Replace the Key Battery in an Audi A4 B7
How to Replace the Key Battery in an Audi A4 B7
Audi A4 (2004-2008 / B7) If you want to learn how to properly replace the battery inside the key of your Audi A4 B7 (model years 2004-2008), just follow these instructions an…

Other guides you may be interested in

How to Replace the Remote Battery for the Volvo XC40?

In this tutorial, you will see how to replace the battery in the remote for the Volvo XC40, a very simple and quick operation. For this, you will need a replacement battery of type CR2032 and possibly a small flathead screwdriver. First, remove the front cover by pressing the button on the metal ring, then locate the second button, press it as well, and remove the opposite cover. Next, open the circular cap, take out the old battery, and insert the new one in the opposite direction. Finally, reassemble everything.

Watch the video!


by ScegliAuto

More videos