What are the steps to replace the key battery for a Mercedes-Benz GLC200?

[SanReagan]

There are 4 steps to replace the key battery for a Mercedes-Benz GLC200: 1. Hold the Mercedes-Benz GLC200 remote key: If there is a protective case, remove it as well; 2. Push the small switch on the back and pull out the mechanical key: Flip the key to the back, push the small switch on the back, pull out the mechanical key, and use the mechanical key to pry open the back cover; 3. Remove the old battery: If the battery is stuck too tightly, you can use a toothpick to pry it out, or repeatedly tap it until the old battery pops out; 4. Install the new battery, paying attention to the positive and negative poles: The Mercedes-Benz GLC200 key battery is a CR2025 coin cell, so be mindful of the positive and negative pole orientation during installation.