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 of a Mercedes C-Class

Model: Mercedes Classe C W204 - Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013
Part: Key

See other generations:
Video tutorial

The key battery of a Mercedes C-Class model W204 needs replacement every year, or every two years in the best cases. You will need a CW2032 battery for the replacement.

To replace the battery, first remove the cover on the back of the remote. Press the small button located on the silver area to do this.

Once the cover is removed, pull the two side tabs outward to access the battery. Remove the old battery and insert the new one. Close the cover and test the remote's functionality.


Updated on 26 October 2026 by ScegliAuto


Related tutorials

How to Replace the Key Battery in the Mercedes C 250
How to Replace the Key Battery in the Mercedes C 250
Mercedes Classe C (2014-2021 / W205) To replace the key battery in the Mercedes C 250, follow this procedure: first, extract the emergency key. Once done, use the emergency key to apply …
Changing Mercedes C-Class Key Battery
Changing Mercedes C-Class Key Battery
Mercedes Classe C (2007-2013 / W204) .. Changing the dead battery of the Mercedes C-Class key, let's see how to proceed. Take the car ignition key and pull out the metal key from the housing,.. …
How to replace the battery of the remote control key for the Mercedes C-Class
How to replace the battery of the remote control key for the Mercedes C-Class
Mercedes Classe C (2014-2021 / W205) .. and replace the battery of the Mercedes C-Class key remote, in simple steps. First, we take the remote in hand and begin to remove the physical.. …

Where is the Comfort Control Module in an Audi A3?

The comfort control module in the Audi A3 manages several systems in the car, such as central locking, electric windows, courtesy lights, etc. It is located on the side of the boot, on the passenger side. To access it, lower the rear seat backs to detach the side plastic panel of the boot. Underneath, you will find the device, which can be removed from its housing by unscrewing the fixing screws and disconnecting the appropriate connectors.

Watch the video!


by ScegliAuto

More videos