Mercedes GL Key: How to Open Fob Battery

Owning a Mercedes GL is a luxurious experience until your key fob decides to quit. Imagine standing beside your sleek SUV, pressing the unlock button repeatedly, only to be met with silence. The culprit? A dead key fob battery. But don’t fret! Replacing the battery in your Mercedes GL key fob is a surprisingly simple process that you can do yourself, saving you time and money.

Why is my Mercedes GL key fob not working?

Before we delve into the battery replacement process, let’s first understand why your key fob might be acting up. While a dead battery is a common reason, other factors can contribute to key fob malfunctions:

• Weak Signal: Obstacles like walls or electronic devices can interfere with the signal between your key fob and your car.
• Key Fob Programming Issues: Sometimes, the key fob itself might need to be reprogrammed to sync with your Mercedes GL.
• Internal Damage: Physical damage to the key fob or water ingress can damage its internal components.

If you’ve replaced the battery and your key fob still isn’t cooperating, it’s best to consult a qualified automotive locksmith or your Mercedes-Benz dealership for diagnosis and repair.

What kind of battery does a Mercedes GL key fob take?

Most Mercedes GL key fobs use a small, flat CR2032 battery. These batteries are readily available at most hardware stores, auto parts stores, and even online retailers. It’s always a good idea to keep a spare battery handy to avoid getting stranded by a dead key fob.

How To Open a Mercedes GL Key Fob Battery

Now, let’s get to the heart of the matter: opening your Mercedes GL key fob to replace the battery. Follow these simple steps:

1. Locate the Release Button: On the back of your key fob, look for a small, recessed button. This is the release button for the emergency key blade.
2. Release the Emergency Key: Gently insert the emergency key blade (or a small flathead screwdriver) into the release button slot and push it gently. This will release the metal key blade.
3. Separate the Key Fob Halves: With the emergency key released, you’ll notice a small seam running along the edge of the key fob. Carefully insert the tip of the emergency key blade or your fingernail into this seam and gently pry the two halves of the key fob apart.
4. Access the Battery: Inside the key fob, you’ll find the CR2032 battery nestled in a designated compartment. Gently pry out the old battery using a small, non-metallic tool, taking care not to damage the battery contacts.

Installing the New Battery

1. Insert the New Battery: Place the new CR2032 battery into the compartment, ensuring the positive (+) side faces up. You’ll usually find a “+” symbol embossed on the battery compartment to guide you.
2. Reassemble the Key Fob: Carefully align the two halves of the key fob and press them firmly together until you hear a click, indicating they’re securely snapped back in place.
3. Reinsert the Emergency Key: Slide the emergency key blade back into its slot until it locks securely.

New battery in Mercedes GL key fob

Testing the New Battery

After replacing the battery, test your key fob by pressing the lock and unlock buttons. If the car responds, you’ve successfully replaced your Mercedes GL key fob battery! If not, double-check that the new battery is properly installed and that the contacts are clean.

Remember, taking care of your key fob can prevent unexpected lockouts and keep your Mercedes GL running smoothly. If you have any doubts or require further assistance with your key fob, don’t hesitate to contact a professional automotive locksmith or your Mercedes-Benz dealer.

Mercedes Key Fob Battery Replacement FAQs

How long do Mercedes key fob batteries last?

Mercedes key fob batteries typically last between 3 to 5 years, depending on usage and environmental factors.

Can I replace the battery in my Mercedes key fob myself?

Yes, replacing the battery in your Mercedes key fob is a simple DIY task that you can do at home with basic tools.

Can a dead key fob battery drain my car battery?

No, a dead key fob battery will not drain your car battery.

What do I do if my Mercedes key fob still doesn’t work after battery replacement?

If your key fob still doesn’t work after replacing the battery, it might require reprogramming or have internal damage. Consult a professional for assistance.

Need professional assistance with your Mercedes Key Fob Programming? Contact Keyfobprog at +1 (641) 206-8880 or visit our office at 1326 N Houston St, Amarillo, TX 79107, USA.