How to Replace the Battery in the New Mercedes-Benz GLB Key?

[Lukas]

To replace the battery in the new Mercedes-Benz GLB key, follow these steps: 1. Gently press the small switch on the back of the key to remove the mechanical key. 2. Press the key back cover release button on the back of the key and remove the back cover. 3. The old battery is located on the left side of the key; gently push to open the battery compartment. 4. Remove the old battery. 5. Insert the new battery, ensuring the "+" side faces upward. 6. Reassemble the key in reverse order. 7. Test the key functions, such as the lock button, to ensure they work properly. Important notes for battery replacement: 1. Using an unsuitable or non-compliant battery may damage the car key. When purchasing a new battery, pay attention to its voltage, size, and specifications. 2. To avoid key failure, minimize usage outside the effective range. 3. Ensure your hands are dry during the battery replacement process to prevent internal components from rusting.

[CameronRose]

I've been driving a Mercedes-Benz GLB for several years, and replacing the key battery is a routine task. First, pull out the small metal piece at the bottom of the key—it's like a spare key. Then, locate the small groove on the back of the key and gently pry it open with a small screwdriver or a credit card to access the battery cover. Inside, you'll find a CR2032 coin cell battery. Make sure to buy a high-quality brand like Maxell or Energizer; it only costs about ten bucks, so don’t cheap out with off-brand batteries. When replacing, pay attention to the polarity—usually, the positive side faces outward. Installing it backward could fry the key. After securing the cover, test the buttons to check responsiveness; the light should turn on. I recommend replacing the battery every two years to avoid being stranded with a dead key. Daily care is also important: avoid water exposure or high temperatures, and store the key separately to prevent signal interference from devices like phones. The whole process is simple, takes about five minutes, and saves money while giving peace of mind.

[Addyson]

Hey, I often do some DIY minor repairs. Changing the battery for a Mercedes GLB key is a piece of cake: pull out the metal part, use the edge of a coin to pry open the battery cover, and be careful not to crack the plastic shell. Replace it with a new CR2032 battery, which costs just a few bucks—the fun of DIY is right here, saving you dozens of dollars in labor fees at the repair shop. Don’t get the battery model wrong; the GLB specifically uses CR2032, which you can buy at the supermarket. After replacement, test if the buttons are responsive—when the key feels sluggish, it’s a reminder that it’s time for a change. I also like to keep a spare battery in the car, just in case. In short, it’s super easy to do it yourself—the key is not to be afraid of breaking it, just handle it gently.

[SilasAnn]

Based on years of experience, the CR2032 battery model is universally compatible with Mercedes keys. During operation, remove the hidden key blade and gently pry open the cover with a tool, being careful with the snap structure to avoid damaging plastic components. Install the battery with the negative side facing up to ensure proper circuit connection, then test the button functions after assembly. Lithium-ion batteries like Panasonic are recommended for their cost-effectiveness and long-lasting performance. Before replacement, use a multimeter to measure voltage; replace if it falls below 3 volts. The entire process is efficient and can be completed in two minutes, with regular maintenance preventing key failure risks.