How to Remove the Battery from a Mercedes Car Key?

[ODaniel]

Here is the method for removing the battery from a Mercedes car key: 1. From the end of the key, push up the marked switch, and the hidden mechanical key will pop out slightly, allowing you to remove the mechanical key. 2. Use the mechanical key you just removed to press against the marked position, apply a slight force, and the key casing will open. 3. After opening the key casing, you will find the battery located deep inside; gently pry it out with a small card to remove the old battery. Additional Information: 1. After installing the new battery, ensure the positive and negative poles are correctly aligned. Then proceed with the installation steps: first insert the top of the casing, then press firmly on the other end to complete the battery replacement. Don't forget to reinsert the mechanical key. 2. If the remote key gets wet, avoid shaking it vigorously or pressing any buttons, as this can cause water to seep into other critical circuits. Also, do not immediately use the remote to unlock the car, as this may damage the circuit board. The correct approach is to open the key casing, lay it flat, and use a hairdryer to dry it before further inspection.