How to Replace the Battery in a Mercedes-Benz GLA260 Key?

[DelAaliyah]

On the side of the Mercedes GLA remote, there is a PUSH button. Press this push metal head to release the mechanical key. After removing it, you will see a small groove and a slit at the top. Pry it open with force, and the key will split into two halves. The side with the circuit board is where the battery is located. Flip it over, remove the old battery, and place a CR1632 battery in the metal frame position. Then, put the circuit board back in place, close the two halves, and you're done.

[VanSara]

Replacing the battery for a Mercedes-Benz GLA260 key is actually quite simple. I do it myself often to avoid queuing at the dealership and save money. There's usually a small groove on the back of the key—just use a small coin or thin plastic piece to gently pry it open. Inside, you'll find a standard CR2032 coin battery. First, note the battery orientation; the old one has positive/negative markings, so gently remove it. When inserting the new battery, make sure the positive side (marked with a plus sign) faces up—don’t put it in backward. Press the cover back until you hear a click. Test it by pressing the unlock button to see if the car responds. When buying a replacement, opt for reputable brands like Panasonic to avoid counterfeits. The whole process takes about a minute. Doing it yourself not only saves money but also teaches you basic maintenance. The battery typically lasts about two years before needing replacement.

[Aiden]

As someone who enjoys DIY projects, replacing the battery in a Mercedes-Benz GLA key requires some technique. The key's design is quite sophisticated—use a small screwdriver or specialized tool to gently pry open the casing from the side, being careful not to apply excessive force to avoid scratches. When removing the old battery, note its orientation; the new CR2032 must be inserted with the positive side facing outward. This step is crucial, as reversing it will prevent the key from functioning. After reassembling, press the cover firmly into place. I recommend keeping a spare battery at home or in your car for emergencies if the key fails while you're on the go. After testing the unlocking function, take a moment to clean any dust from the key's contact points. This practice can extend the key's lifespan and reduce the need for frequent replacements. The battery itself costs just a few dollars, and doing it yourself saves hundreds compared to dealership service. Remember to work in a dry environment to prevent static interference.

[TravisLee]

Changing the battery for a Mercedes key is not difficult at all. I managed to do it myself, avoiding extra hassle. There's a small opening on the back of the key—just pry it open with a fingernail or a thin card. The battery inside is a CR2032 type. Gently remove the old one, and when replacing it, make sure the side with the + sign faces upwards. Close the cover and test if the unlocking works properly. The whole process takes less than two minutes, and the batteries are super cheap to buy online. Doing it yourself saves time and effort, and it's more reliable.