How to Replace the Battery in a Mercedes-Benz Remote Key?
1 Answers
Press the latch on the key to remove the mechanical key. Press the latch again and push the back cover outward to remove it. After removing the back cover, use your fingernail to pull out the battery compartment. Take out the battery compartment, paying attention to the battery's installation direction. Remove the old button battery and replace it with a new one. Ensure the battery's positive and negative poles are correctly aligned, then push the compartment back in and secure the back cover. Reinsert the mechanical key.