How to Replace the Battery in a Mercedes-Benz GLA Key?
4 Answers
Mercedes-Benz GLA key battery replacement method is: 1. There is a battery cover on the back of the key, with a groove in the middle; 2. Press the groove to twist open the cover, remove the old battery and replace it with a new one. The Mercedes-Benz GLA is a compact 5-door, 5-seat SUV with body dimensions of: length 4427mm, width 1834mm, height 1610mm, and a wheelbase of 2729mm. The Mercedes-Benz GLA is equipped with a 1.3T turbocharged engine, delivering a maximum power of 100 kilowatts at 5500 rpm, and a maximum torque of 250 Nm between 1460 to 4000 rpm.
As an amateur technician who frequently repairs car keys, I know that replacing the battery in a Mercedes-Benz GLA key is actually quite straightforward. On the back of the key, there's usually a small groove or gap—just gently pry it open with a coin or a small flat-head screwdriver, but don't use too much force to avoid cracking the shell. Inside, you'll find a small round battery, model CR2032, which you can easily buy at any supermarket. When removing the old battery, pay attention to the positive and negative markings (there's a plus sign on the positive side), and insert the new battery with the positive side facing up. Snap the cover back on until you hear a click, then immediately test the unlock button to see if the car lights flash to confirm it's working. Common mistakes include prying too hard and cracking the plastic or inserting the battery backward, causing it not to work—just be patient. It's recommended to check the battery once a year to avoid being stranded outside in a panic when it dies.
As a long-time Mercedes GLA owner, I've changed the key battery myself many times. The process is super simple: Use a 50-cent coin to gently pry open the cover at the back slot of the key. Inside is a CR2032 battery – a new one costs just a dollar. Remove the old battery (pay attention to the orientation), insert the new one with the positive side facing up, then snap the cover back with a light press. Test the remote unlock function immediately after replacement to ensure everything works. Avoid using heavy metal tools to prevent scratching the key. The whole process takes just two minutes and saves a lot of money. Keep a spare battery in your car to avoid sudden power loss situations.
As a new driver, I was a bit unfamiliar with changing the Mercedes key battery for the first time, but the steps are quite simple. There's a small indentation on the back of the key—use a plastic card or your fingernail to carefully pry open the casing. Inside, you'll find a CR2032 battery. Remove the old one, then check the new battery for the positive mark (a plus sign on top) and insert it accordingly. Snap the cover back into place and test the remote by pressing the buttons to see if the car responds. If it doesn't work, the battery might be inserted backward or there could be poor contact. Don't worry, just take your time. Prepare tools like a thin card, and the whole process takes just a minute or two, saving you money without needing to visit the dealership.
