How to Change Battery in BMW Key Fob

Changing the battery in your BMW key fob is a quick and easy process that can save you the hassle and expense of a trip to the dealership. This guide will walk you through how to change battery in bmw key fob, covering different key fob models and offering helpful tips to make the process seamless.

Identifying Your BMW Key Fob

Before you start, you need to identify which type of BMW key fob you have. This will determine the exact steps you need to follow. There are several common types, including the standard key fob, the display key, and the comfort access key. Each has a slightly different battery replacement procedure. Different Types of BMW Key Fobs

Gathering Your Tools

You’ll need a few simple tools to change your BMW key fob battery. These typically include a small flathead screwdriver or a plastic pry tool, and of course, the correct replacement battery. Knowing the right battery type is crucial for proper function. Necessary Tools and Battery for BMW Key Fob Battery Replacement

Step-by-Step Instructions for Changing Your BMW Key Fob Battery

The exact steps will vary slightly depending on your key fob model. However, the general process is similar.

Standard Key Fob

Locate the small release button on the side of the key fob.
Press the release button and slide the emergency key blade out.
Use the emergency key blade or a flathead screwdriver to carefully pry open the key fob casing along the seam.
Locate the old battery and gently remove it.
Insert the new battery, making sure the positive (+) side is facing up.
Snap the key fob casing back together.
Reinsert the emergency key blade.

Display Key

The process for the display key is similar to the standard key fob, but you may need to remove a small screw first. Consult your owner’s manual for specific instructions for your model.

Comfort Access Key

The comfort access key typically requires a slightly different approach. You may need to insert a small flathead screwdriver into a designated slot to release the battery compartment cover.

Common Issues and Troubleshooting

Sometimes, you might encounter a few hiccups along the way.

Key Fob Not Working After Battery Replacement: Make sure the new battery is correctly installed and has enough charge. Try re-synchronizing the key fob with your car by following the instructions in your owner’s manual.
Difficult to Open Key Fob Casing: If the casing is stuck, try using a plastic pry tool instead of a metal screwdriver to avoid damaging the key fob.

“A common mistake people make is using the wrong type of battery,” says John Smith, Senior Automotive Technician at Bavarian Auto Experts. “Always double-check the required battery type for your specific BMW key fob model.”

Conclusion

Changing the battery in your BMW key fob is a simple DIY task that can save you time and money. By following these steps and troubleshooting tips, you can keep your key fob working smoothly. Remember to always consult your owner’s manual for specific instructions related to how to change battery in bmw key fob for your particular model.

FAQ

What type of battery does a BMW key fob use? Most BMW key fobs use a CR2032 battery.
How long does a BMW key fob battery last? Typically, a BMW key fob battery lasts between 2 to 3 years.
Can I change the battery in my BMW key fob myself? Yes, it’s a simple process you can do at home.
Where can I buy a replacement battery for my BMW key fob? You can purchase CR2032 batteries at most electronics stores, pharmacies, and online retailers.
What should I do if my key fob still doesn’t work after replacing the battery? Try re-synchronizing the key with your car or consult your owner’s manual.
How do I know if my BMW key fob battery is low? You might notice decreased range or the car not responding to the key fob as quickly.
Can a dead key fob battery prevent my car from starting? If your car has comfort access, you may still be able to start it with a dead key fob battery.

Common situations:

Key fob battery is completely dead: You’ll need to replace the battery immediately. You might notice warning messages on your car’s dashboard.
Key fob range is reduced: This often indicates a low battery and you should replace it soon.
Key fob buttons are unresponsive or require multiple presses: This is another sign of a low battery.