How to Replace the Battery in a Mercedes-Benz B180 Diesel Key?

[VonKayden]

Mercedes-Benz B180 Diesel Key Battery Replacement Method: 1. Press the small button on the back of the key to pull out the mechanical key; 2. Insert the mechanical key into the slot at the flap position, and the key cover will pop open; 3. Remove the old battery and replace it with a new one, ensuring the correct battery type is used with the positive side facing outward. The Mercedes-Benz key will indicate low battery in two ways: 1. When pressing the ignition switch, the dashboard will display a message to replace the key battery; 2. When pressing the lock or unlock button on the key, the indicator light on the key will dim or not light up, signaling the need to replace the key battery.