BMW Key Fob Battery Replacement Guide

Learn how to replace the battery in your BMW key fob with this easy-to-follow guide. Whether you have a smart key, a comfort access key, or a diamond key, we’ve got you covered. Follow the step-by-step instructions below to ensure a smooth battery replacement process.

Key Takeaways

• Replacing the battery in your BMW key fob is a simple process that can be done at home.
• There are different methods for replacing the battery depending on the type of key fob you have.
• Make sure to use the correct battery type and follow the manufacturer’s instructions for best results.
• Always ensure that the key fob is properly sealed and functioning after battery replacement.
• By replacing the battery in your BMW key fob, you can continue to enjoy the convenience and functionality it provides.

Replacing the Battery in a Standard BMW Key Fob

If your BMW key fob has a metal blade key and a separate key fob body, you can easily replace the battery by following this step-by-step guide:

1. Remove the metal blade key from the fob by using it as a pry tool.
2. Turn the key fob over and locate the battery cover on the back.
3. Remove the battery cover and lift out the old battery.
4. Insert the new battery in place, making sure to apply gentle pressure.
5. Snap the cover back onto the key fob.

6. Your BMW key fob is now ready to use with the new battery installed.

Step	Action
1.	Remove the metal blade key from the fob by using it as a pry tool.
2.	Turn the key fob over and locate the battery cover on the back.
3.	Remove the battery cover and lift out the old battery.
4.	Insert the new battery in place, making sure to apply gentle pressure.
5.	Snap the cover back onto the key fob.

Replacing the Battery in a Comfort Access BMW Key Fob

If your BMW key fob has a comfort access feature, follow these steps to replace the battery:

1. Remove the valet key from the key fob.
2. Locate the small access port on the key fob.
3. Use the valet key or a flat screwdriver to remove the key battery cover.
4. Take out the old battery and insert the new one.
5. Press the battery cover back onto the key fob.
6. Reinsert the valet key.

Your comfort access BMW key fob is now ready to use with the new battery.

Replacing the Battery in a Rechargeable BMW Key Fob

Some BMW key fobs have rechargeable batteries that aren’t designed to be replaced. However, if you need to replace the battery in a rechargeable key fob, follow these steps:

1. Carefully cut open the key fob using a box knife.

2. Use a soldering iron to desolder the old battery from the circuit board.

3. Lift out the old battery and solder the new one in its place.

4. Put the key fob back together and seal it with glue.

Your rechargeable BMW key fob should now have a new battery installed.

Pros	Cons
Cost-effective in the long run	Requires soldering skills
Ability to use a rechargeable battery	Higher risk of damaging the key fob

Conclusion

Replacing the battery in your BMW key fob doesn’t have to be complicated. With the correct steps for your specific type of key fob, you can easily change the battery and ensure that your key continues to function properly. Whether you have a standard key fob, a comfort access key, or a rechargeable key fob, the process is straightforward and can be done at home.

Remember to use the correct battery type and follow the manufacturer’s instructions for best results. By doing so, you can enjoy a fully functional BMW key fob without any hassle. Changing the battery yourself not only saves you time and money, but it also allows you to have control over your key fob’s maintenance.

So, don’t wait for your key fob to stop working unexpectedly. Take charge of your BMW key fob’s battery health and replace it when needed. With an easy way to change the BMW key fob battery, you can ensure a reliable and convenient experience with your vehicle at all times.

FAQ

How do I replace the battery in a standard BMW key fob?

Follow these steps to replace the battery in a standard BMW key fob:
– Remove the metal blade key from the fob
– Turn the key fob over and locate the battery cover on the back
– Remove the battery cover and lift out the old battery
– Insert the new battery in place, making sure to apply gentle pressure
– Snap the cover back onto the key fob
– Your BMW key fob is now ready to use with the new battery installed.

How do I replace the battery in a comfort access BMW key fob?

To replace the battery in a comfort access BMW key fob, follow these steps:
– Remove the valet key from the key fob
– Locate the small access port on the key fob
– Use the valet key or a flat screwdriver to remove the key battery cover
– Take out the old battery and insert the new one
– Press the battery cover back onto the key fob
– Reinsert the valet key
– Your comfort access BMW key fob is now ready to use.

How do I replace the battery in a rechargeable BMW key fob?

If you need to replace the battery in a rechargeable BMW key fob, follow these steps:
– Carefully cut open the key fob using a box knife
– Use a soldering iron to desolder the old battery from the circuit board
– Lift out the old battery and solder the new one in its place
– Put the key fob back together and seal it with glue
– Your rechargeable BMW key fob should now have a new battery installed.