Change Battery Mercedes Key Fob 2017: A Comprehensive Guide

Changing the battery in your 2017 Mercedes key fob is a simple task you can do yourself, saving you a trip to the dealership. This guide will walk you through the process step-by-step, covering everything from identifying the correct battery type to resetting your key fob after the change. We’ll also address common issues and offer helpful tips to ensure a smooth process.

Why Change Your Key Fob Battery?

A dying key fob battery can lead to a range of frustrating issues, from decreased range to complete key fob failure. Recognizing the signs of a low battery is crucial. These signs can include: inconsistent locking/unlocking, the need to be closer to the car for the key fob to work, or the car not recognizing the key fob at all. Replacing the battery promptly prevents these inconveniences and ensures reliable access to your Mercedes.

What You’ll Need

Before you begin, gather the following items:

• A new CR2032 battery: This is the standard battery type for most 2017 Mercedes key fobs. Don’t be tempted to use a different type as it may not fit or provide the correct voltage.
• A small flathead screwdriver or a key: This will be used to pry open the key fob casing.
• A soft cloth: This will help protect your key fob from scratches during the process.

Step-by-Step Guide to Change Battery Mercedes Key Fob 2017

1. Locate the release button: On the side of your key fob, you’ll find a small release button. Press this button to release the emergency key blade.
2. Use the emergency key: Insert the emergency key blade into the slot on the side of the key fob casing. Gently twist the key to separate the two halves of the casing.
3. Identify the battery: Inside the key fob, you’ll see the CR2032 battery. Note its orientation before removing it.
4. Remove the old battery: Carefully pry the old battery out using your flathead screwdriver or key.
5. Install the new battery: Insert the new CR2032 battery, ensuring it’s positioned in the same orientation as the old battery.
6. Reassemble the key fob: Align the two halves of the casing and press them together until they snap shut.
7. Test the key fob: Try locking and unlocking your car to ensure the new battery is working correctly.

Common Issues and Troubleshooting

Sometimes, you might encounter issues even after replacing the battery. Here are a few common problems and their solutions:

• Key fob still not working: Double-check the battery orientation. If it’s correct, you might need to resynchronize your key fob with your car. Refer to your owner’s manual for instructions. Check out our guide on how to reset key fob battery low mercedes.
• Key fob casing difficult to open: Be gentle when prying open the casing to avoid damage. If you’re having trouble, try using a plastic opening tool instead of a metal screwdriver.

How long does a Mercedes key fob battery last?

Typically, a Mercedes key fob battery lasts between 2 to 3 years. You can find more information on our mercedes cla 250 key fob battery page.

Where can I buy a replacement key fob?

If you need a new key fob, check out our replacement key fob mercedes page.

“Regular battery changes are a small but crucial part of maintaining your Mercedes,” says John Davis, a certified Mercedes technician with over 20 years of experience. “Don’t wait until your key fob fails completely. Proactive maintenance can save you a lot of hassle in the long run.” Another helpful tip from John is to “Always keep a spare CR2032 battery in your glove compartment for emergencies.” You can also learn more on our battery for key fob mercedes page.

Conclusion

Changing the battery in your 2017 Mercedes key fob is a quick and easy DIY project that can save you time and money. By following these simple steps and troubleshooting tips, you can ensure your key fob continues to function reliably. Remember, changing your key fob battery is a simple task you can handle yourself, keeping your Mercedes accessible and ready to drive.

FAQ

1. What type of battery does a 2017 Mercedes key fob use? A CR2032 battery.
2. How often should I change my key fob battery? Every 2-3 years, or when you notice signs of a low battery.
3. Do I need to reprogram my key fob after changing the battery? Usually, no. But if your key fob is not working after the battery change, you might need to resynchronize it with your car.
4. Where can I buy a CR2032 battery? Most electronics stores, pharmacies, and online retailers sell CR2032 batteries.
5. What should I do if I damage my key fob while changing the battery? Contact a qualified locksmith or your Mercedes dealership for assistance.
6. Can I use a different type of battery in my Mercedes key fob? No, always use a CR2032 battery. Other battery types may not work correctly and could damage your key fob.
7. How do I know if my key fob battery is low? You may experience decreased range, inconsistent locking/unlocking, or the car not recognizing the key at all.

Need further assistance?

Check out these related articles:

• How to Program a Mercedes Key Fob
• Understanding Mercedes Keyless Go
• Troubleshooting Common Mercedes Key Fob Problems

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