How to Replace the SB Key Battery for the New Mercedes-Benz CLS350?

[Venus]

To replace the SB key battery for the new Mercedes-Benz CLS350: Start from the tail of the key, push up the marked switch, and the hidden mechanical key will pop out. Then, use the mechanical key to press against the marked position from the tail of the key to open the key shell. The battery is located relatively deep inside. Insert a tool along the gaps on both sides to remove the old battery and replace it with a new one. The new Mercedes-Benz CLS350 has a body length, width, and height of 5001mm, 1896mm, and 1430mm respectively, with a wheelbase of 2939mm. It boasts a maximum power of 220kw and a maximum torque of 400nm, with the engine model being 264920.