How to Change Battery in 2004 745 BMW Key Fob

A dead key fob battery can leave you stranded, unable to unlock your 2004 745 BMW. Don’t panic! Replacing the battery in your BMW key fob is a quick and easy task that you can do yourself, saving you time and money. This guide will walk you through each step, ensuring you’re back on the road in no time.

What You’ll Need to Change Your BMW Key Fob Battery

Before you begin, gather the following items:

A new CR2032 battery (available at most hardware and auto parts stores)
A small flat-head screwdriver
Your 2004 745 BMW key fob

Step-by-Step Guide to Changing the Battery

Follow these simple steps to replace the battery in your 2004 745 BMW key fob:

Open the Key Fob: Locate the small release button on the side of the key fob. Press the button and gently separate the two halves of the key fob.
Remove the Old Battery: Carefully pry out the old CR2032 battery from its slot. Avoid touching the battery terminals.
Insert the New Battery: Place the new CR2032 battery into the slot, ensuring the positive (+) side faces up.
Reassemble the Key Fob: Align the two halves of the key fob and press them firmly together until you hear a click.
Test the Key Fob: Try locking and unlocking your car doors to ensure the new battery is working correctly.

Troubleshooting Tips

If your key fob still doesn’t work after replacing the battery, consider these possibilities:

Battery Orientation: Double-check that the new battery is inserted correctly with the positive (+) side facing up.
Key Fob Programming: In rare cases, you may need to reprogram your key fob to your BMW. Refer to your owner’s manual or contact a BMW dealership for assistance.
Key Fob Damage: Inspect your key fob for any physical damage that may be affecting its functionality. If you suspect damage, contact a qualified automotive locksmith or BMW dealership.

Conclusion

Changing the battery in your 2004 745 BMW key fob is a simple DIY task that can save you time and money. By following this guide, you can ensure your key fob is always ready to unlock your BMW and get you on your way.

Frequently Asked Questions

Q: How often should I change the battery in my BMW key fob?

A: Typically, a BMW key fob battery lasts between 3 to 5 years. However, it’s a good idea to replace it sooner if you notice a decrease in the key fob’s range or if you frequently need to hold it close to the car for it to work.

Q: Can I use any CR2032 battery for my BMW key fob?

A: While any CR2032 battery will physically fit, it’s recommended to use a high-quality battery from a reputable brand to ensure optimal performance and lifespan.

Q: What do I do if I replace the battery and my key fob still doesn’t work?

A: First, double-check the battery installation. If the battery is in correctly, you may need to reprogram your key fob or contact a BMW dealership for assistance.

Q: Can I damage my key fob by replacing the battery myself?

A: As long as you are careful and follow the instructions, you are unlikely to cause any damage. However, if you are unsure, it’s always best to consult a professional.

Need help with your BMW key fob? Contact us via Whatsapp: +1 (641) 206-8880 or visit us at 1326 N Houston St, Amarillo, TX 79107, USA. We offer 24/7 customer support.