How to Replace the Key Battery for the New Mercedes-Benz GLS Class?
2 Answers
Here are the steps to replace the battery for the Mercedes-Benz GLS key: 1. First, remove the mechanical key from the smart key. It is the L-shaped key. 2. At the top of the smart key, there is a deep slot and a shallow slot. 3. Use the L-shaped key to press into the shallow slot of the smart key until it reaches the bottom. The back cover of the smart key will then pop open automatically. 4. Remove the old battery, install the new large button battery, reattach the back cover, and reinsert the mechanical key to complete the process. Here are some precautions when replacing the Mercedes-Benz GLS key battery: 1. Do not touch the circuit board or battery terminals. 2. When replacing the battery, ensure there is no dirt, grease, or other foreign matter on the electrode contacts. 3. After replacing the battery, check to ensure all functions of the smart key are working properly.
Replacing the battery in a Mercedes GLS key is quite easy, I've done it several times myself. The key's back cover is usually located on the back or side, and can be gently pried open with a plastic pry tool or a thin screwdriver—avoid using metal tools to prevent short circuits. The CR2032 battery inside is a standard model that you can easily buy at any supermarket. Insert it with the positive side facing up, and make sure the contact points are clean and dust-free. When closing the cover, ensure the clips snap into place, then test the unlock function. Mercedes keys are well-designed; replacing the battery can extend their life for several more years, and regular checks can save a lot of hassle. It's recommended to use a professional tool kit for safety, and be careful not to drop the key.