How to Replace the Battery in an Older Mercedes-Benz GLC350E Key?
2 Answers
Method to replace the battery in an older Mercedes-Benz GLC350E key: 1. Slide the small toothed switch at the end of the remote to the right, which will release a manual key; 2. After pulling out the key, gently insert it into the slightly larger hole at the back of the key slot. Insert it about one centimeter until you touch a latch for the remote's battery cover. Gently pry it open; 3. Press lightly on the battery to release it, then replace it with a new one. Close the key cover and reinsert the manual key. The older Mercedes-Benz GLC350E is an SUV with body dimensions of 4665mm in length, 1910mm in width, and 1650mm in height, and a wheelbase of 2875mm.
Replacing the battery for an older Mercedes-Benz GLC350E key is actually quite simple—I've done it several times myself. First, locate the small groove or button on the side of the key. Use a flathead screwdriver or a stiff card to gently pry open the key casing. Be careful not to apply too much force to avoid scratching the plastic. Once opened, you'll see the battery inside, typically a CR2025 coin cell. Pay attention to the battery's polarity to avoid inserting it backward, which could prevent the key from functioning. Before removing the old battery, consider wearing gloves to prevent static damage to the internal circuitry. Then, insert the new battery, ensuring it's securely seated. Finally, gently snap the casing back together and test the buttons to confirm functionality. The whole process takes just a few minutes and costs only a few dollars—much cheaper than visiting a repair shop. Batteries are inexpensive at supermarkets or online, and once replaced, the key will reliably unlock your car again, giving you peace of mind.
