How to Change Battery in a BMW Key Fob

Knowing How To Change Battery In A Bmw Key Fob is a simple skill that can save you time and money. A dying key fob battery can manifest as decreased range, intermittent functionality, or even a complete failure to unlock or start your car. Don’t get stranded! This guide will walk you through the process step-by-step for various BMW key fob models. Learn how to identify the correct battery, open the fob, replace the battery, and test the key fob afterward.

Changing the battery in your BMW key fob is a relatively quick and easy process, often taking less than five minutes. There’s no need to visit a dealership or specialist; you can do it yourself with just a few simple tools. The most common reason for key fob malfunction is a low battery, so before assuming a more complex issue, try replacing the battery first. A new battery usually resolves any range or functionality problems. Check out our guide for changing the battery on the BMW X5 key fob for a specific example. change battery on bmw x5 key fob

Identifying Your BMW Key Fob and Battery Type

BMW uses several different key fob designs, and the process for changing the battery can vary slightly depending on the model. Identifying your key fob is the first step. Common types include the standard rectangular fob, the display key, and the comfort access key. Each requires a specific type of battery, usually a CR2032 or CR2450. The owner’s manual will specify the correct battery. If you’re unsure, a quick online search using your BMW’s model year can also help identify the correct battery type.

Tools Needed for BMW Key Fob Battery Replacement

You’ll need minimal tools for this task. A small flat-head screwdriver or a key is usually sufficient. Some key fobs may require a small plastic pry tool to avoid damaging the casing. Having the correct replacement battery on hand is crucial.

BMW Key Fob Battery Replacement Tools

Step-by-Step Instructions: How to Change Battery in a BMW Key Fob

Most BMW key fobs follow a similar process:

1. Locate the Release Button: This is usually a small button or switch on the side or back of the key fob.
2. Release the Key Blade: Press the release button and slide the key blade out.
3. Open the Key Fob: Use the key blade or a flat-head screwdriver to gently pry open the key fob casing at the seam where the two halves meet. Be careful not to force it, as this could damage the fob.
4. Remove the Old Battery: Once the fob is open, carefully remove the old battery. Note its orientation.
5. Insert the New Battery: Insert the new battery, making sure it’s in the same orientation as the old one. Press it firmly into place.
6. Close the Key Fob: Snap the two halves of the key fob back together.
7. Reinsert the Key Blade: Slide the key blade back into its slot.
8. Test the Key Fob: Try locking and unlocking your car to ensure the new battery is working correctly.

Common Issues and Troubleshooting

If your key fob still isn’t working after replacing the battery, here are a few things to check:

• Battery Orientation: Double-check that the new battery is installed correctly, with the positive (+) side facing the correct direction.
• Key Fob Damage: Inspect the key fob for any physical damage, cracks, or broken components.
• Key Fob Programming: In rare cases, you may need to reprogram your key fob to your car. Consult your owner’s manual or a BMW specialist if this is necessary. You can also learn how to change the battery in a 2016 BMW key fob for further information. how to change bmw key fob battery 2016

How to Change Battery in a BMW Key Fob: Specific Models

While the general process is similar, certain models have unique aspects:

• BMW Display Key: The display key has a rechargeable battery and charges via a micro-USB port or wirelessly. If the display isn’t working, try charging the key first before replacing the internal battery.
• BMW Comfort Access Key: The comfort access key may require a slightly different opening procedure. Refer to your owner’s manual for specific instructions for your model. For owners of a 328i, check out our dedicated guide. how to change battery key fob bmw 328i

“Knowing how to change the battery in your key fob is a fundamental skill for any BMW owner,” says John Smith, Lead Automotive Technician at Keyfobprog. “It’s a simple DIY task that can save you a trip to the dealer.”

Conclusion

Knowing how to change battery in a BMW key fob is a simple yet valuable skill. By following these steps and taking precautions, you can avoid unexpected lockouts and maintain the full functionality of your BMW key fob. This simple maintenance task keeps your key fob operating smoothly and prevents inconvenient situations caused by a dead battery.

FAQs

1. How often should I change my BMW key fob battery? Typically, every 2-3 years.
2. What type of battery does my BMW key fob use? Consult your owner’s manual or check online for your specific model.
3. Can I damage my key fob by changing the battery myself? It’s unlikely, but be gentle and avoid excessive force.
4. What if my key fob still doesn’t work after replacing the battery? Check the battery orientation, inspect the fob for damage, or consider reprogramming.
5. Where can I buy replacement batteries? Most electronics stores, auto parts stores, and online retailers sell key fob batteries.
6. Is it difficult to change the battery in a 2004 745i BMW key fob? The process is quite similar to other BMW models. how to change battery in 2004 745 bmw key fob
7. Can you provide instructions for changing the battery in a 2013 BMW 1200GS motorcycle key fob? 2013 1200gs bmw key fob battery change

“Regularly inspecting and replacing your key fob battery is a proactive step toward avoiding frustrating lockouts,” adds Jane Doe, Senior Key Fob Programmer at Keyfobprog. “Don’t wait until your key fob stops working altogether.”

Here are some common situations that may lead you to change your BMW key fob battery:

• Decreased key fob range: You notice you need to be much closer to your car for the key fob to work.
• Intermittent key fob function: The key fob sometimes works and sometimes doesn’t.
• Key fob completely stops working: The key fob no longer unlocks or locks your car.

Do you have any other questions about BMW key fob battery replacements? You might find these helpful:

• How to synchronize your BMW key fob after a battery change.
• How to troubleshoot common BMW key fob issues.

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