How to replace the key battery for Mercedes-Benz C200L?
2 Answers
The steps to replace the key battery for Mercedes-Benz C200L are: 1. Locate the hidden mechanical key at the tail of the key; 2. Pry open the key cover, remove the old battery and install the new one. The body dimensions of the Mercedes-Benz C200L are: length 4784mm, width 1810mm, height 1457mm, with a wheelbase of 2920mm and a fuel tank capacity of 66 liters. The Mercedes-Benz C200L is equipped with a 1.5T turbocharged engine, delivering a maximum power of 115kW and a maximum torque of 250Nm, paired with a 9-speed automatic manual transmission. It features multi-link independent suspension for both front and rear.
Changing the battery for a Mercedes-Benz C200L key is actually quite simple, and I highly recommend trying it yourself. First, identify the key model—most keys for this car are the keyless entry type, using a CR2032 coin battery, which you can easily find at convenience stores. All you need is a small flathead screwdriver or a coin. Press the small button on the top of the key to remove the mechanical key, then gently pry open the back cover with the screwdriver—be careful not to damage the plastic clips. When removing the old battery, note the orientation (positive/negative sides facing up), and insert the new battery the same way to avoid malfunction. Finally, snap the cover back on tightly and test the lock/unlock functions to ensure everything works. The whole process takes just two minutes and saves you a trip to the dealership for overpriced service—just a cheap battery replacement. It’s also smart to keep a spare battery in your car for emergencies, as Mercedes keys drain batteries fairly quickly over a few years. Once you’ve done it once, you’ll breeze through it next time.
