BMW E90 Key Fob Battery Type: Everything You Need to Know

Knowing the correct Bmw E90 Key Fob Battery Type is crucial for keeping your BMW running smoothly. A dead key fob battery can leave you stranded, so understanding how to identify, replace, and even troubleshoot key fob issues is essential for any E90 owner. This guide will provide all the information you need about your BMW E90 key fob battery, from the correct type to replacement procedures and troubleshooting tips.

What is the Correct BMW E90 Key Fob Battery Type?

The BMW E90 key fob uses a CR2032 battery. This is a common lithium coin cell battery readily available at most electronics stores, auto parts stores, and online retailers. Make sure you purchase a high-quality battery to ensure longevity and reliable performance. Don’t be tempted by cheaper alternatives, as they often have a shorter lifespan. If you’re unsure about the right battery type, you can always consult your owner’s manual or a qualified BMW technician.

You can learn more about how to start your BMW with a dead key fob, if you are in such a situation. It can be a real lifesaver!

How to Replace Your BMW E90 Key Fob Battery

Replacing the battery in your BMW E90 key fob is a simple process that you can do yourself, saving you a trip to the dealership. Here’s a step-by-step guide:

1. Locate the release button: On the side of your key fob, you’ll find a small release button. Press this button to release the valet key.
2. Open the key fob: Use the valet key or a small flat-head screwdriver to gently pry open the key fob casing. Be careful not to damage the casing.
3. Remove the old battery: Once the key fob is open, you’ll see the CR2032 battery. Gently pry it out using your fingernail or a small flat-head screwdriver.
4. Insert the new battery: Place the new CR2032 battery into the compartment, making sure the positive (+) side is facing upwards.
5. Close the key fob: Snap the two halves of the key fob back together. Make sure it closes securely.
6. Test the key fob: Try locking and unlocking your car to ensure the new battery is working correctly.

Troubleshooting BMW E90 Key Fob Issues

Sometimes, even with a new battery, your key fob might not work correctly. Here are some common troubleshooting steps:

• Check the battery orientation: Ensure the battery is inserted correctly with the positive (+) side facing up.
• Clean the battery contacts: Use a cotton swab and rubbing alcohol to clean the battery contacts inside the key fob. Corrosion can sometimes interfere with the connection.
• Try re-synchronizing the key fob: Consult your owner’s manual for the specific procedure to re-synchronize your key fob to your car. This might be necessary after a battery replacement.
• Check for other issues: If none of these steps work, there might be a problem with the key fob itself or the car’s receiver. In this case, it’s best to consult a qualified BMW technician.

Replacing your BMW 6 series key fob battery is a similar process.

What if my BMW E90 key fob still doesn’t work after replacing the battery?

If your key fob still isn’t functioning correctly after a battery replacement, there might be a more significant issue, such as a faulty key fob or a problem with your car’s receiver. It’s advisable to consult a qualified BMW technician for diagnosis and repair.

Where can I find affordable BMW key fob replacements?

Replacing a BMW key fob can be expensive. Knowing how much it costs to replace a BMW key fob can help you budget accordingly. Check with a locksmith for best price!

If your BMW E90 key fob isn’t working, this guide offers helpful information on common issues and solutions. You can also explore more information about changing the battery on your BMW 3 series key fob for additional insights.

Conclusion

Knowing the correct bmw e90 key fob battery type (CR2032) and how to replace it is essential for any E90 owner. By following the simple steps outlined in this guide, you can save yourself time and money by handling the battery replacement yourself. Remember to prioritize quality when purchasing a new battery and don’t hesitate to seek professional help if you encounter any persistent issues.

Expert Insight from John Miller, Automotive Electrical Systems Engineer:

“A common mistake people make is using low-quality batteries in their key fobs. While they might be cheaper upfront, they often have a shorter lifespan and can lead to reliability issues.”

Expert Insight from Sarah Chen, Senior Automotive Technician:

“Regularly cleaning the battery contacts in your key fob can prevent corrosion and ensure optimal performance.”

FAQ:

1. What type of battery does a BMW E90 key fob use? (CR2032)
2. How often should I replace my BMW E90 key fob battery? (Every 2-3 years)
3. Can I replace the battery myself? (Yes, it’s a simple process.)
4. What if my key fob still doesn’t work after replacing the battery? (Consult a qualified BMW technician.)
5. Where can I buy a replacement CR2032 battery? (Electronics stores, auto parts stores, online retailers)
6. How do I synchronize my key fob to my car? (Consult your owner’s manual.)
7. What tools do I need to replace the battery? (Small flat-head screwdriver, valet key)

Other related questions and articles can be found on our website. For further assistance, please contact us via WhatsApp at +1 (641) 206-8880 or visit our location at 1326 N Houston St, Amarillo, TX 79107, USA. We offer 24/7 customer support.