How to Replace the Key Battery for the New Mercedes-Benz E260 COUPE?
2 Answers
Steps to replace the key battery for the new Mercedes-Benz E260 COUPE: 1. Gently press the small switch on the back of the key to remove the mechanical key; 2. Before removing the back cover, press the back cover release button located at the rear of the key; 3. Then slide the battery compartment on the left side of the key; 4. Use a small flat-head screwdriver to remove the depleted battery and install the new one. The dimensions of the new Mercedes-Benz E260 are 5021mm in length, 1854mm in width, and 1487mm in height, with a wheelbase of 3014mm. It has a maximum power output of 150kW, a maximum torque of 310Nm, and a maximum horsepower of 204PS.
I just replaced the battery for my Mercedes-Benz E260 COUPE key, which was simple and practical. First, confirm the key model—the newer version has keyless entry with a sliding slot on the back. Use a coin or the edge of a bank card to gently push the side latch and slowly pry open the cover. Avoid using excessive force to prevent damaging the plastic clips. Once opened, you'll see the internal battery compartment. Remove the old CR2032 coin cell battery. When inserting the new battery, ensure the positive side faces upward and gently press it into place. Make sure the sealing ring is properly aligned before closing and firmly pressing the cover. Afterward, test the remote buttons to check if the unlock and lock functions work properly. It's recommended to inspect the battery annually—Panasonic or Duracell brands are available at supermarkets for about $2 each. Dispose of old batteries through eco-friendly recycling. The entire process takes just 5 minutes, saving you the labor cost of a dealership visit, and most importantly, it keeps the key clean without leaving fingerprints. For safety, work on a clean surface to avoid losing small parts.
