Steps to Replace the Battery in a Mercedes Key

[VonCalvin]

Steps to replace the battery in a Mercedes key: 1. Before replacing, first understand the model of the car key battery, then select a new key battery according to the specified model; 2. Push the marked switch upwards from the tail of the key, the hidden mechanical key will pop out slightly, then you can take out the mechanical key; 3. Use the just taken out mechanical key to press against the marked position, gently apply force to open the key shell; 4. After the key shell is removed, you can see the battery position is relatively deep, insert a toothpick along the gaps on both sides, gently pry to remove the old battery; 5. After replacing with a new battery, pay attention not to reverse the positive and negative poles of the battery, follow the original steps to complete the installation.