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 the Mercedes C-Class W204

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

See other generations:
Video tutorial

This video shows how to replace the remote key battery of the Mercedes C-Class. To work correctly, you need nothing but the Mercedes C-Class remote key. Press the button located at the top of the black part of the key remote.

At this point, you can extract the blade located inside; this key will help you perform a second maneuver to remove the battery holder. As shown in the video, insert one end of the blade into the key remote and push down; this maneuver allows you to slide out the battery holder.

Once removed, proceed to replace the two batteries with two functioning ones; the new batteries must be identical to the original. Reassemble by reversing the steps.

Finally, test the operation.


Updated on 20 May 2026 by ScegliAuto


Related tutorials

How to Replace the Battery in a Mercedes-Benz C-Class W204 Key
How to Replace the Battery in a Mercedes-Benz C-Class W204 Key
Mercedes Classe C (2007-2013 / W204) .. If your Mercedes-Benz C-Class W204 indicates that the electronic key battery is low, or if you have difficulty locking or unlocking.. …
How to replace the battery of the remote control of the Mercedes C Class W204
How to replace the battery of the remote control of the Mercedes C Class W204
Mercedes Classe C (2007-2013 / W204) .. If the remote control of your Mercedes C-Class W204 suddenly stopped working and you want to replace the battery inside it, then all you have.. …
Battery Replacement on Mercedes C-Class W204
Battery Replacement on Mercedes C-Class W204
Mercedes Classe C (2007-2013 / W204) .. remove and replace the battery on the Mercedes C-Class W204, following the instructions below. First, open the hood of your car and start by removing.. …

Other guides you may be interested in

How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

Watch the video!


by ScegliAuto

More videos