How to Replace the Battery in a Mercedes-Benz GLK200 Key?

1 Answers
Evelyn
07/29/25 8:26pm
There is a button on the back of the key. Press this button and slide the back cover forward to open the key. The battery is located in the slot nearby. During the replacement process, it is crucial to pay attention to the battery model. Most Mercedes-Benz keys use a 3V-CR2025 battery. Mercedes-Benz vehicles typically indicate the need for a key battery replacement in two ways: 1. When you press the ignition switch, the dashboard will display a message prompting you to replace the key battery. 2. If the indicator light on the key dims or fails to illuminate when you press the lock or unlock buttons, it's time to replace the key battery.
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