BMW cars are known for their advanced technology and attention to detail, right down to the key fob. The BMW key fob is a sophisticated piece of equipment that allows you to lock, unlock, and start your car with ease. However, like all electronic devices, the battery in your BMW key will eventually need to be replaced. In this guide, we will walk you through the steps to replace the battery in your BMW key fob.
Step 1: Determine the Key Type
Before you begin, it’s important to determine the type of key you have. BMW key fobs come in various styles, including those with a removable emergency key and a comfort access key that allows for keyless entry and start. The process for replacing the battery may vary slightly depending on the type of key you have, so be sure to identify your key before proceeding.
Step 2: Gather the Necessary Tools
For this task, you will need a small Phillips head screwdriver and a replacement battery. The specific type of battery required will depend on your BMW key fob model. Check your vehicle’s owner’s manual or visit the BMW website to find the correct battery type for your key.
Step 3: Remove the Key Blade (if applicable)
If your BMW key fob has a removable emergency key blade, start by sliding the release button or lever to remove the key blade from the fob. Set the key blade aside in a safe place to avoid losing it during the battery replacement process.
Step 4: Open the Key Fob
Using the small Phillips head screwdriver, carefully locate and remove the screw on the back of the key fob. Once the screw has been removed, gently pry open the key fob casing to reveal the battery compartment inside.
Step 5: Replace the Battery
With the key fob open, identify the battery within the compartment. Carefully remove the old battery and dispose of it properly. Take the replacement battery and insert it into the designated slot, ensuring that the positive and negative ends are facing the correct direction as indicated in the fob.
Step 6: Reassemble the Key Fob
Once the new battery is in place, carefully reattach the key fob casing and insert the screw using the Phillips head screwdriver. If you removed the key blade in Step 3, be sure to reinsert it into the fob until it clicks into place.
Step 7: Test the Key Fob
After replacing the battery and reassembling the key fob, it’s time to test whether the new battery is working properly. Press the buttons on the key fob to ensure that it is functioning as expected. If the key fob responds to the button presses, congratulations – you’ve successfully replaced the battery!
Frequently Asked Questions On How To Replace A Battery In A Bmw Key: Easy Diy Guide
How Often Should I Replace My Bmw Key Battery?
You should replace your BMW key battery every 1-2 years to ensure optimal performance.
Can I Replace The Bmw Key Battery Myself?
Yes, you can easily replace the BMW key battery yourself without needing professional assistance.
What Type Of Battery Does A Bmw Key Fob Use?
The BMW key fob uses a CR2032 3V lithium coin cell battery.
How Do I Know If My Bmw Key Battery Needs Replacing?
If you notice a decrease in range or if the key is not working consistently, it’s time to replace the battery.
Conclusion
Replacing the battery in your BMW key fob is a straightforward process that can be completed in just a few minutes. By following the steps outlined in this guide, you can restore the functionality of your key fob and continue to enjoy the convenience and security that it provides. Remember to dispose of the old battery responsibly and keep track of the replacement schedule to ensure that your BMW key fob remains in top working condition.