How to Replace the Battery in an Older Mercedes-Benz GLC350E Key?
3 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.
Last time I replaced the battery for my old Mercedes key, I found it quite convenient. There's a small groove on the key - just gently pry it open using a coin or the edge of nail clippers, but don't use excessive force. The small battery inside is a CR2025, so make sure you don't get the wrong model, otherwise the key won't respond and you'll have bigger trouble. When inserting the new battery, pay attention to the positive and negative sides - they're usually marked with plus and minus signs. After reassembling the key casing, press the lock button to test if the light comes on. If the battery is dying, you might notice shorter remote range or unresponsive doors - that's when it needs replacement. Doing it yourself saves time and money while avoiding service queues at shops. Avoid keeping the key in hot places to prolong battery life - typically needs replacement every two years. Keep the process simple, don't overcomplicate it.
