How to Replace the Battery in an Older Mercedes-Benz R280 Key?
2 Answers
The method to replace the battery in an older Mercedes-Benz R280 key is: 1. There is a button on the back of the key. Press this button and slide the back cover forward; 2. The key will open, and the battery is located in the slot nearby. 3. During the replacement process, be sure to note the battery model. After opening the slot, remove the old battery and replace it with a new one. Additional information: 1. The Mercedes-Benz R280 is a mid-size luxury car under the Mercedes-Benz brand. The front-end design is identical to the imported version, with sharp lines on the split high and low beams, giving it a youthful and dynamic overall appearance. 2. In terms of body dimensions, the length, width, and height are 5174mm, 1923mm, and 1664mm respectively, with a wheelbase of 3216mm, making it a two-box vehicle.
As a seasoned professional with decades of car repair experience, replacing the battery in an old Mercedes R280 key is a piece of cake for me. The key's back cover usually has a small flathead screw, not a Phillips one; you'll need a small flathead screwdriver—nothing too big, easily available at hardware stores. Gently unscrew it, open the cover, and you'll find a CR2032 coin cell inside. Note the positive and negative positions before removing the old battery. Purchase a new one, install it correctly, and ensure the contacts are clean. After replacement, immediately test the key by pressing the buttons to unlock the car. If it doesn’t work, a reset might be needed, but the R280 model usually reconnects automatically without major issues. Opt for manual tools to prevent static or short circuits; use a desk lamp for lighting and avoid working near small children to prevent swallowing small parts. This DIY approach saves time and money—shops charge a hefty fee for this, while the whole process takes just five minutes. Remember the battery model to avoid buying the wrong one.
