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

Replace the Key Fob Battery on Mercedes A-Class

Model: Mercedes Classe A W176 - Years 2012-2018
Part: Key

Let's see how to replace the key fob battery on a Mercedes A-Class. Take the ignition key and remove the metal key. Once the metal key is removed, insert it into the plastic part of the key to unlock the back. Use a small screwdriver to extract the dead battery, take a new one (same size and voltage), and replace it. Reassemble the key fob cover by pressing on the key cover until you hear it click into place. Check the key's operation after replacing the battery: press the buttons on the key.

Updated on 29 March 2026 by ScegliAuto

Video tutorial

Related tutorials

How to Change the Key Fob Battery on the Mercedes A-Class W169 - C-Class W204
How to Change the Key Fob Battery on the Mercedes A-Class W169 - C-Class W204
Mercedes Classe A (2004-2012 / W169) .. the battery in the key fob for the Mercedes A-Class W169, as well as the B-Class W246 and C-Class W204. First, take your key fob and remove the physical.. …
How to Open the Key Fob for the Mercedes A-Class - B-Class
How to Open the Key Fob for the Mercedes A-Class - B-Class
Mercedes Classe A (2004-2012 / W169) .. and open the key fob for the Mercedes A-Class, as well as the B-Class. First, take your key fob and remove the physical key from inside it. Then,.. …
How to Replace the Key Fob Battery in a Mercedes Benz A-Class
How to Replace the Key Fob Battery in a Mercedes Benz A-Class
Mercedes Classe A (2004-2012 / W169) .. the battery in the key fob of a Mercedes Benz A-Class is a very simple operation that can be done in a few steps on your own. Start the battery replacement.. …

Other guides you may be interested in

    Frequently Asked Questions

    • Classe A 2012-2018 - Why is my Mercedes A-Class W176 key not recognized? Read answer

How to Repair the Key Spring of the Peugeot 207?

Over time, frequent use of the key's flip mechanism in the vehicle, dozens of times a day, inevitably leads to wear of the internal spring. As shown in this video, replacing the spring is quite simple and takes little time. After opening the casing halfway, first position the key, then the spring housing, and finally insert the spring into the previously mentioned housing. Close the casing by rotating it clockwise, ensuring all components fit perfectly, and test the key's flip mechanism.

Watch the video!


by ScegliAuto

More videos