How to Replace the Key Battery in a 2014-2018 BMW X3 F25 Fob Remote

Introduction to Key Battery Replacement

Replacing the key battery in your BMW X3 can seem daunting, but it’s a straightforward process. This guide will walk you through the steps to replace the key fob battery for the 2014 through 2018 X3 F25 models.

Whether you have the xDrive20i, xDrive28i (3.0), xDrive28i (2.0T), xDrive35i, sDrive18d, xDrive20d, xDrive30d, or xDrive35d, this guide applies to all these models.

Tools and Materials Needed

Before you start, gather the following tools and materials:

• CR2032 coin battery
• Valet key or small Phillips screwdriver

You can easily find the CR2032 battery at most convenience stores or order it online from Amazon.

Step-by-Step Battery Replacement Process

Step 1: Remove the Valet Key

First, locate the small button on the side of your key fob. This button is used to remove the valet key. Press the button and slide the valet key out of the fob.

Step 2: Open the Battery Compartment

With the valet key removed, look for a small indentation near the back of the key fob. This is where you’ll insert the valet key or a small Phillips screwdriver to open the battery compartment.

Insert the valet key or screwdriver into the indentation and gently pry the back cover off. The cover should come off easily, revealing the battery compartment inside.

Step 3: Remove the Old Battery

Once the battery compartment is open, you’ll see the old CR2032 battery. Carefully remove the old battery, taking note of its orientation. The positive side should be facing up.

Step 4: Insert the New Battery

Take your new CR2032 battery and insert it into the compartment with the positive side facing up. It’s important to place the bottom part of the battery in first, as the compartment has springs that can cause the battery to fly out if not handled properly.

Step 5: Secure the Battery Compartment

After inserting the new battery, take the back cover and align it with the bottom part of the key fob. Press down gently until the cover snaps back into place securely.

Step 6: Reinsert the Valet Key

Finally, slide the valet key back into its slot in the key fob. Ensure it clicks into place, and you’re done!

Testing the New Battery

With the new battery installed, test your key fob to ensure it’s working correctly. Try locking and unlocking your car to confirm the battery replacement was successful.

Benefits of Replacing the Battery Yourself

Replacing the key battery yourself has several benefits:

• Cost savings
• Convenience
• Quick process

By doing it yourself, you avoid the cost and time associated with visiting a dealership or mechanic.

Common Issues and Troubleshooting

Key Fob Not Working After Replacement

If your key fob isn’t working after replacing the battery, consider the following troubleshooting tips:

• Check battery orientation
• Ensure cover is secure
• Inspect for damage

Make sure the positive side of the battery is facing up and that the battery compartment cover is securely in place. If the key fob still doesn’t work, inspect it for any visible damage.

Battery Life and Maintenance

The CR2032 battery typically lasts 1-2 years, depending on usage. To extend battery life, avoid exposing your key fob to extreme temperatures and moisture. Regularly check the battery and replace it as needed to ensure your key fob functions properly.

Frequently Asked Questions (FAQ)

How often should I replace the key fob battery?

Typically, every 1-2 years, depending on usage.

Can I use any CR2032 battery?

Yes, any brand will work as long as it’s a CR2032 battery.

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

Check the battery orientation, ensure the cover is secure, and inspect for damage.

Can I replace the battery without any tools?

Yes, the valet key can be used to open the battery compartment.

Is it safe to replace the battery myself?

Yes, it’s a simple and safe process.

Where can I buy a CR2032 battery?

Most convenience stores, drugstores, or online retailers like Amazon.

Conclusion

Replacing the key battery in your BMW X3 is a simple task that can save you time and money. By following these steps, you ensure your key fob remains functional and reliable.

Regular maintenance, including timely battery replacement, helps keep your key fob in top condition. Don’t hesitate to replace the battery yourself and enjoy the convenience it brings.