How to Replace the Key Battery for the New Mercedes-Benz C200 Supercharged Version?

[LeLincoln]

Method for replacing the key battery of the new Mercedes-Benz C200 supercharged version: 1. First, push the small toothed switch at the end of the remote to the right, which will pop up a manual key; 2. After pulling out the key, insert it into the slightly larger hole at the rear of the key slot. Insert it about one centimeter until you touch a latch for the remote battery cover. Pry it slightly, and the cover will open; 3. Gently press the battery, and it will pop up. Remove it and replace it with a new one, then close the key cover and reinsert the manual key. The new Mercedes-Benz C200 features a driven supercharger, significantly enhancing the vehicle's power and torque.

[Rhett]

Replacing the battery in a Mercedes C200 key is actually quite simple, and I enjoy doing this kind of small DIY when working on cars. The bottom of the key usually has a hidden button or groove—use a plastic card or credit card edge to gently pry open the shell, avoiding sharp objects to prevent scratches. Inside, the battery is typically a CR2032 coin type, which can be bought for a few dollars at a supermarket or auto parts store. When installing the new battery, make sure to align the positive and negative sides correctly by checking the old battery’s orientation. After inserting the new battery, snap the shell back together. Test the remote lock and unlock functions afterward; if they still don’t work, check if the battery isn’t seated properly or if the key itself is faulty. As an extra tip, regularly checking the battery life can extend the key’s lifespan. The whole process takes less than 5 minutes, saving both time and money.

[DiAnthony]

I recommend changing the key battery as it's simple and safe. The C200 key has a small release hole on the side. Gently push it with your hand or pry it open with a plastic tool, but avoid using excessive force to prevent damaging the casing. Remove the old battery and confirm the model, such as CR2032, then purchase a new one and install it, ensuring the positive and negative terminals are correctly aligned. When closing the casing, press it slowly and listen for a click to confirm it's properly secured. After replacement, test the remote functions to ensure they work normally. If issues persist, clean the contact points or visit a professional repair shop for a more reliable solution. Also, avoid exposing the key to moisture or high temperatures to maintain long-lasting battery durability.

[HeidiMarie]

Replacing the C200 key battery yourself can save a lot of money. Press or pry open the button on the edge of the key, insert a new CR2032 battery with the correct orientation, then reassemble and test for proper operation. It's a simple fix that saves you a trip to the dealership.