How to Replace the Battery in a Mercedes-Benz GLS Key?
3 Answers
Here is the method for replacing the battery in a Mercedes-Benz GLS key: 1. First, remove the mechanical key from the smart key, which is the L-shaped key. 2. At the very top of the smart key, there is a deep groove and a shallow groove. 3. Insert the L-shaped key into the shallow groove of the smart key, and the back cover of the smart key will automatically pop out. Remove the old battery, install the new large coin battery, reattach the back cover, and reinsert the mechanical key to complete the replacement. Below is some related information about the Mercedes-Benz GLS: 1. The Mercedes-Benz GLS is a crossover SUV from Mercedes-Benz. 2. In terms of appearance, the GLS features AMG styling, making it look very sporty. Its overall size remains largely unchanged, maintaining its robust and imposing presence. Among the many SUVs from Mercedes-Benz, I personally believe the GLS (formerly the GL) has the most balanced proportions. If you're looking for sheer masculinity, the G-Class is undoubtedly the top choice in the family. But if you want a vehicle with well-balanced proportions and a luxurious demeanor, the GLS should be your first pick.
I've replaced the battery in my own Mercedes-Benz GLS key once, and found it quite simple. Here's a bit of my experience to share. There's a small gap or button on the back of the key; usually, you can gently pry it open with a coin or a thin screwdriver—just don't use too much force to avoid damaging the casing. Once opened, you'll find a small round battery inside, model CR2032. Remember to install the new battery in the same orientation as the old one, with the positive side facing up to avoid reversing it. After replacing the battery, reassemble the key and press the buttons to test if the light comes on. If it works, you're good to go. I think there's no need to always go to the dealership; doing it yourself saves time and money. But if the key starts acting up, it might be due to an old battery—it's advisable to replace it every two to three years. Also, avoid storing the key in high-temperature places or near magnets, as this can accelerate battery drain and shorten its lifespan.
As a tech enthusiast, I find the process of replacing the battery in a Mercedes-Benz GLS key quite practical. The key design features a latch—simply use a small tool like nail clippers or flat tweezers to gently pry open the casing. Then, remove the old CR2032 battery, being careful not to touch the internal circuit board. Next, insert the new battery, ensuring it matches the correct size. After replacement, test the key functions, such as unlocking doors or starting the vehicle, to avoid poor connections. I recommend purchasing a generic CR2032 battery from the supermarket—no need to overspend. However, wash your hands beforehand to prevent static electricity and maintain cleanliness. Regularly check the battery, especially in winter when weak charge can affect responsiveness. Just a few simple steps can save you from waiting until issues arise to fix them.
