What is the tutorial for replacing the battery in a Mercedes-Benz C200L key?
2 Answers
Mercedes-Benz C200L key battery replacement tutorial: 1. Gently press the small switch on the back of the key to remove the mechanical key; 2. Press the key back cover opening button on the back of the key to remove the back cover; 3. Then push the battery compartment on the left side of the key; 4. Use a small flat-head screwdriver to remove the depleted battery; 5. Insert the new battery, ensuring the positive side is facing up; 6. After installing the battery, reassemble the key; 7. Confirm that the key functions properly. The Mercedes-Benz C200L is a car launched by Mercedes-Benz, with dimensions of 4784mm in length, 1810mm in width, and 1457mm in height, and a wheelbase of 2920mm.
My Mercedes-Benz C200L key fob ran out of battery, and I found changing the battery quite simple, though beginners might feel nervous. Here's my method. There's a small gap on the back of the key – gently pry it open with a plastic card or a specialized pry tool (never use a screwdriver or hard metal tool to avoid scratching the plastic). Inside, you'll find a coin cell battery, usually a CR2025. Before removing the old battery, note its orientation (usually the side with numbers faces up) to avoid reversing the new one. Insert the new battery (easily bought online or at supermarkets for a few dollars) in the correct position, snap the casing back on until you hear a "click," and test the key to ensure it unlocks or starts the car. If it doesn’t work, a reset might be needed by inserting the key into the ignition, turning it one notch, then removing it (I haven’t tried this often – checking the manual is safer). The whole process takes five minutes. Keep spare batteries in your car for emergencies to avoid calling roadside assistance.
