Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Disassembly and Replacement of Mercedes C-Class Key Battery

Model: Mercedes Classe C W204 - Years 2007-2013
Part: Key

In this guide, you will learn how to replace the battery in the remote key of a Mercedes C-Class. First, remove the internal key by pulling the small black lever located at the corner of the key. Then, insert the key into the slot to remove the internal body of the key, as shown in the video. At this point, access the batteries (there are two in this case): remove them and replace them. Be very careful not to reverse the polarity: reinstall them in the correct direction and choose only long-lasting, high-quality batteries!

Updated on 19 March 2026 by ScegliAuto

Video tutorial

Related tutorials

How to replace the battery of the key remote for the Mercedes C-Class
How to replace the battery of the key remote for the Mercedes C-Class
Mercedes Classe C (2021-2026 / W206) Let's see the process of how to disassemble and replace the battery of the key remote for the Mercedes C-Class. First, we take our remote control and…
Disassemble Key Fob and Replace Battery for Mercedes C-Class
Disassemble Key Fob and Replace Battery for Mercedes C-Class
Mercedes Classe C (2014-2021 / W205) In this video tutorial, you will learn how to disassemble the key fob to replace the battery for a 2019-2020 Mercedes C-Class. First, extract the key…
Disassembly of the remote control and replacement of the battery for the Mercedes C-Class.
Disassembly of the remote control and replacement of the battery for the Mercedes C-Class.
Mercedes Classe C (2000-2007 / W203) Today's guide will show us how to disassemble the remote control and replace the battery of the Mercedes C-Class key. First, we take our remote contr…

Other guides you may be interested in

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos