Do it yourself
Frequently asked questions about cars and motorcycles

How to replace the battery of the Audi S6 2018 key

Model: Audi A6 C8, MK 5 - Years 2018-2026
Part: Key

When the smart key of your Audi S6 (2018) suddenly stops working, it is very likely that it is time to replace the small button battery located inside. In the following mini guide, we will describe all the steps you need to take to complete the operation quickly and safely. First of all, remove the metal top part of the cover, then remove the battery holder and then remove the exhausted battery. Once you have done this, insert the new battery and reassemble the various components correctly.

Posted on 30 July 2025 by ScegliAuto

Video tutorial

Related tutorials

Audi A6 (2019-2026 / ) In today's video, learn how to replace the key fob battery for the latest Audi A6 model. This video also applies to other Audi models, including A7, …
Audi A6 (2011-2018 / C7, MK 4) First, detach the physical key from the electronic key of your Audi A6 by pressing the release button located on the upper section. Start by extracti…
Audi A6 (2011-2018 / C7, MK 4) If the battery of your Audi A6 key has stopped working, don't worry because in the following guide you will find all the steps you need to follow in …

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