How to Replace the Battery in the New Mercedes-Benz C200 Key?
2 Answers
To replace the battery in the new Mercedes-Benz C200 key, follow these steps: 1. Turn the key to the backside and press the button; 2. Slide the back cover forward and remove it; 3. Pull out the adjacent card slot to take out the old battery; 4. Insert the new battery, reinsert the card slot, and close the back cover. The Mercedes-Benz C200 is a mid-sized 4-door 5-seater sedan with body dimensions of 4784mm in length, 1810mm in width, and 1457mm in height, with a wheelbase of 2920mm. It is equipped with a 1.5T turbocharged engine and a 9-speed automatic manual transmission, delivering a maximum power of 115 kW and a maximum torque of 250 Nm.
I just helped a friend replace the battery in the key fob for the new Mercedes-Benz C200, and it felt quite simple and practical. There's usually a small silver button or slot on the back of the key—press it to release the mechanical key part, and you'll find the battery cover hidden underneath. Gently pry it open with a small screwdriver or coin, but avoid using too much force to prevent scratching the key casing. The old battery is a CR2032 coin cell—remove it carefully, making sure not to lose it or touch the internal chip. Buy a new CR2032 battery from a supermarket or auto parts store, ensuring it's a genuine lithium battery for longer lifespan. Insert it with the positive side facing up (the side with the '+' sign outward). Close the cover until you hear a click to secure it, then test the remote buttons and keyless functions. If the response is slow, the battery might not be seated properly—just recheck it. I usually recommend keeping spare batteries at home; if the key is used frequently, replacing it yearly is safest to avoid mid-journey issues. Last time, it took me less than five minutes—once you get the hang of it, it’s even quicker.
