How to Replace the Battery in an Older Mercedes-Benz C200 Key?

[CarlosAnn]

Steps to replace the battery in an older Mercedes-Benz C200 key are as follows: 1. Press the switch on the back of the key to remove the mechanical key. 2. Before opening the back cover of the key, press the opening button on the back. 3. After opening the battery compartment on the left side of the key, the battery will be visible. 4. Use a small flat-head screwdriver to remove the depleted battery. 5. When installing the new battery, ensure the positive side is facing up. 6. Reassemble the key in reverse order. 7. Test the key functions to ensure they are working properly. Notes: 1. Improper battery replacement may damage the car key. 2. Using a battery that does not meet the specifications will render the key unusable. The battery's rated voltage, size, and specifications must be identical. 3. Being within a 1-meter range of a magnetic field can cause the battery to become magnetized and fail.