How to Replace the Battery in a Mercedes-Maybach 57 Key?
2 Answers
To replace the battery in a Mercedes-Maybach 57 key, follow these steps: 1. Before replacement, identify the battery model required for the car key and select a new key battery according to the specified model. 2. Push the marked switch upwards from the bottom of the key, and the hidden mechanical key will pop out slightly, allowing you to remove it. 3. Use the extracted mechanical key to press against the marked position and gently pry open the key casing. 4. Once the casing is removed, you will find the battery positioned deep inside. Insert a toothpick into the gaps on both sides and gently pry to remove the old battery. 5. When installing the new battery, ensure the positive and negative poles are correctly aligned. Reassemble the key following the original steps to complete the process.
I've changed the key battery for my Mercedes-Maybach 57 before, and it felt quite simple and hassle-free. There's usually a small gap on the back of the key. I used a small flathead screwdriver to gently pry open the back cover—just don't use too much force to avoid damaging the plastic parts. Once opened, you'll see the coin cell battery inside, which is a CR2032 model. You can buy a new one for just a few dollars at an electronics store or supermarket. Be careful not to lose any small parts when removing the old battery, and when installing the new one, make sure the side with the plus sign faces upward. Finally, snap the cover back on firmly and test the remote lock and unlock functions near the car. I've done this several times myself, and it only takes a minute or two each time—saving both money and hassle. Dealerships often overcharge by hundreds for this service. If you use the key frequently, the battery typically lasts about one to two years before needing replacement, so it's good to stay on top of it to avoid being caught off guard by a dead battery.
