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 on a Mercedes B200

Model: Mercedes Classe B MK 2, W246 - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Key

See other generations:
Video tutorial

If you own a Mercedes B200 and want to know how to correctly replace the battery inside the key, follow the instructions in this guide. First, locate the small button on the back of the cover and press it to remove the cover.

Once removed, use a small flat screwdriver to take out the battery holder and proceed to replace the old exhausted battery with a new one.


Updated on 30 August 2026 by ScegliAuto


Related tutorials

Where is the OBD2 port located in the Mercedes B200?
Where is the OBD2 port located in the Mercedes B200?
Mercedes Classe B (2005-2011 / MK 1, W245) If you want to connect a diagnostic tool to your Mercedes B200, but you don't know where the OBD2 port is located, then all you have to do is follow …
How to Replace the Auxiliary Belt (Poly V) on a Mercedes Benz B200?
How to Replace the Auxiliary Belt (Poly V) on a Mercedes Benz B200?
Mercedes Classe B (2005-2011 / MK 1, W245) This short video tutorial explains how to remove and replace the auxiliary belt (in this case, a Poly V belt) on your Mercedes Benz B200. After raisi…
Deactivating the ESP on a 2007 Mercedes B200 CDI
Deactivating the ESP on a 2007 Mercedes B200 CDI
Mercedes Classe B (2005-2011 / MK 1, W245) This video shows how to deactivate the ESP system on a 2007 Mercedes B200 CDI. This simple operation also disables the ABS and electronic controls. I…

How to open the bonnet on a Volkswagen Golf?

In this tutorial, you will see how to open the bonnet on a Volkswagen Golf MK4. This is a very simple operation that follows the standard procedure. First, open the driver's door, then locate the lever in the lower left area and pull it. Next, move to the front of the vehicle, lift the bonnet slightly, and find the second lever located just above the Volkswagen logo. At this point, simply pull it towards you, fully open the bonnet, and secure it with the prop rod. To close it, gently push it down.

Watch the video!


by ScegliAuto

More videos