2015 Mercedes Key Fob Battery Replacement: A Quick Guide

If you’re experiencing issues with your 2015 Mercedes key fob, a dead battery might be the culprit. Luckily, replacing the battery is a straightforward process you can easily do yourself. This guide will provide a step-by-step walkthrough on how to replace your 2015 Mercedes key fob battery and get you back on the road in no time.

What You’ll Need:

• A brand new CR2025 battery (often found at grocery stores, drugstores, and auto parts stores)
• A small flat-head screwdriver
• Optional: A small container to hold screws

Steps for Replacing Your 2015 Mercedes Key Fob Battery:

1. Locate the release button. On the back of your key fob, you’ll find a small, square-shaped button.
2. Release the emergency key. Press the release button and gently slide the emergency key blade out of the fob.
3. Open the key fob. Using the flat-head screwdriver, carefully pry open the key fob casing along the seam where you removed the emergency key. You should hear a slight click when it disengages.
4. Identify and remove the old battery. Inside the fob, you’ll see the battery. Carefully pry out the old battery using your flat-head screwdriver. Avoid touching the battery terminals directly.
5. Insert the new battery. Place the new CR2025 battery into the fob, ensuring the positive (+) side is facing up, just like the old battery.
6. Reassemble the key fob. Align the two halves of the key fob casing and press them together firmly until you hear a click.
7. Reinsert the emergency key. Slide the emergency key blade back into its slot on the fob.

Testing Your New Key Fob Battery:

Once you’ve replaced the battery, test your key fob by locking and unlocking your car doors and trying to start the engine. If everything works correctly, congratulations! You’ve successfully replaced your 2015 Mercedes key fob battery.

FAQs:

Q: How long does a Mercedes key fob battery last?

A: Mercedes key fob batteries typically last between 3 to 5 years, but this can vary depending on usage and environmental factors.

Q: Can I use any brand of CR2025 battery?

A: While it’s recommended to use a reputable brand, any CR2025 battery with the correct voltage should work.

Q: What if my key fob still doesn’t work after replacing the battery?

A: If you’re still having issues, it’s possible there’s a different problem with your Key Fob, and it’s best to contact a qualified Mercedes-Benz technician.

Need additional support? Contact our team of experts 24/7 via WhatsApp: +1(641)206-8880, Email: [email protected]. We’re here to help you with all your car key and diagnostic needs.