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

[AvaMarie]

Method to replace the battery in an older Mercedes-Benz C-Class key: Flip open the tab at the rear end of the key to remove the mechanical key. Insert the mechanical key into the side slot of the key, press the internal gray button, and with the other hand, push the rear end of the key upward. When a gap is created, remove the mechanical key, then manually take out the rear end to replace the battery. The Mercedes-Benz C-Class has a body length, width, and height of 4784mm, 1810mm, and 1457mm respectively, with a wheelbase of 2920mm. The vehicle is equipped with a 1.5T turbocharged engine, delivering a maximum power of 115kW and a maximum torque of 250Nm.