Change BMW Key Fob Battery 2019: Simple DIY Tips for Effortless Key Fob Functionality

Are you experiencing a frustratingly short range with your BMW key fob, or does it seem to be dying altogether? It’s likely time for a battery change. While it might seem intimidating, replacing the battery in your 2019 BMW key fob is a straightforward process that can be done in a matter of minutes. This guide will walk you through every step, ensuring a smooth and hassle-free experience.

Tools You’ll Need

Before you begin, gather the following tools:

• A small flathead screwdriver or a coin: This will be used to pry open the key fob.
• A new CR2032 battery: This is the standard battery type used in most BMW key fobs. You can find these at most electronics stores, supermarkets, or online retailers.

Step-by-Step Guide to Replacing the Battery

Now that you have your tools ready, let’s dive into the process:

1. Locate the Battery Compartment:

• First, examine your BMW key fob. The battery compartment is usually located on the back, side, or underneath the key fob. Look for a small seam or a release button.
• If you’re unsure, consult your owner’s manual for precise instructions specific to your 2019 BMW model.

2. Open the Key Fob:

• Once you’ve located the battery compartment, use your flathead screwdriver or coin to carefully pry open the key fob. Insert the tool into the seam or press the release button, gently applying pressure.
• Be cautious not to apply excessive force, as this could damage the key fob.

3. Remove the Old Battery:

• Inside the compartment, you’ll find the old battery. Carefully lift it out using your fingers.
• Take note of the positive (+) and negative (-) ends of the battery, as you’ll need to ensure the new battery is inserted correctly.

4. Insert the New Battery:

• Align the new CR2032 battery with the positive (+) and negative (-) terminals inside the compartment.
• Gently press the battery into place until it clicks securely.

5. Close the Key Fob:

• Once the new battery is installed, carefully close the key fob. Ensure all the edges are properly aligned and snap together securely.

6. Test the Key Fob:

• Now, it’s time to test your newly equipped key fob. Try unlocking and locking your BMW, and check if the remote start function works. If it doesn’t, ensure the battery is properly inserted and try again.

Tips for Extending Battery Life

While a new battery will give your key fob a fresh lease on life, there are some tips to help extend its lifespan:

• Avoid Extreme Temperatures: Extreme heat or cold can significantly shorten the battery’s life. Keep your key fob out of direct sunlight and away from extreme temperature fluctuations.
• Minimize Button Presses: Every time you press a button on your key fob, it consumes battery power. Minimize unnecessary button presses to conserve battery life.
• Store it Properly: When not in use, store your key fob in a cool, dry place to prevent damage and preserve battery life.

Troubleshooting Common Issues

While changing the battery is usually a straightforward process, you might encounter some issues:

• Key Fob Not Working After Battery Change: If your key fob still doesn’t work after replacing the battery, ensure the new battery is correctly installed. Double-check the positive (+) and negative (-) terminals.
• Battery Compartment Won’t Open: If you’re unable to open the battery compartment, consult your owner’s manual for specific instructions on your model. If you still have trouble, consider seeking assistance from a qualified mechanic.
• Key Fob Is Damaged: If your key fob is physically damaged, such as a cracked case, it might be time to replace it entirely. Contact your BMW dealership or a reputable locksmith for assistance.

Beyond Battery Replacement: Key Fob Maintenance

While battery replacement is essential, it’s not the only aspect of key fob maintenance. Here are some additional tips:

• Keep it Clean: Regularly clean your key fob with a soft cloth and mild soap to remove dirt and grime that can accumulate over time.
• Avoid Water Exposure: Water damage can be detrimental to your key fob. Avoid submerging it in water or exposing it to excessive moisture.
• Regular Inspections: Periodically inspect your key fob for any signs of wear and tear, such as cracks or loose buttons. Address any issues promptly to prevent further damage.

Final Thoughts: Keep Your Key Fob in Top Shape

By following these simple steps, you can easily replace the battery in your 2019 BMW key fob and ensure it continues to function flawlessly. Remember to practice good key fob maintenance habits to extend its lifespan and avoid any potential issues. If you encounter any difficulties or have concerns, don’t hesitate to consult your owner’s manual or seek assistance from a qualified mechanic.

Information You Need to Know

Q: How long does a BMW key fob battery typically last?

A: The lifespan of a BMW key fob battery varies depending on usage and environmental factors. On average, it can last anywhere from 1 to 3 years.

Q: Can I use a different type of battery in my BMW key fob?

A: It’s highly recommended to use the specified CR2032 battery type. Using a different battery type could damage the key fob or cause it to malfunction.

Q: What happens if my key fob battery dies while I’m driving?

A: If your key fob battery dies while you’re driving, you’ll still be able to operate your BMW. However, you won’t be able to use the remote locking, unlocking, or remote start features.

Q: Can I program a new key fob myself?

A: Programming a new key fob can be a complex process and often requires specialized tools and knowledge. It’s best to consult your BMW dealership or a qualified locksmith for assistance.