Replacing the key fob battery in your 1999 BMW 740il is a surprisingly common task. This guide covers everything from identifying a dying battery to programming a new one, empowering you to handle this yourself.
Signs Your 1999 BMW 740il Key Fob Battery Needs Replacing
Several tell-tale signs indicate a failing key fob battery. Reduced range is a frequent early symptom. You might notice you have to be much closer to your car for the lock/unlock functions to work. Another sign is inconsistent performance—the key fob might work sometimes and not others. Dimming indicator lights on the fob itself, or no lights at all, are clear indicators. Lastly, if you find yourself having to press the buttons repeatedly or with excessive force, it’s likely time for a 1999 Bmw 740il Key Fob Battery replacement.
How to Change Your 1999 BMW 740il Key Fob Battery
The process is relatively simple. You’ll need a small flathead screwdriver and a fresh CR2032 battery. Start by locating the small slot on the side of the key fob. Carefully insert the flathead screwdriver and gently pry open the fob casing. Once open, you’ll see the CR2032 battery. Carefully remove the old battery and replace it with the new one, ensuring the positive (+) side is facing upwards. Finally, snap the key fob casing back together.
Programming Your 1999 BMW 740il Key Fob
In some cases, after replacing the 1999 bmw 740il key fob battery, you might need to re-synchronize or reprogram it. This process can usually be done yourself, although some complex situations may require a professional locksmith or dealership. Refer to your owner’s manual for the specific reprogramming procedure for your 1999 BMW 740il. It usually involves a sequence of turning the ignition key on and off, combined with pressing buttons on the key fob.
What Type of Battery Does a 1999 BMW 740il Key Fob Take?
The 1999 BMW 740il key fob uses a CR2032 battery, a common type of lithium button cell battery readily available at most stores. Make sure to purchase a high-quality battery to ensure long life and reliable performance.
How Long Does a 1999 BMW 740il Key Fob Battery Last?
The lifespan of a 1999 bmw 740il key fob battery varies depending on usage, but generally lasts between 2 to 4 years. Frequent use, extreme temperatures, or even keeping your keys near electronic devices can drain the battery faster.
Conclusion
Changing your 1999 BMW 740il key fob battery is a manageable task. By following this guide, you can save yourself time and money. Remember, if you encounter any difficulties or are unsure about any step, consulting a professional is always a good idea.
FAQ
- Where can I buy a CR2032 battery? These batteries are widely available at most electronics stores, pharmacies, and online retailers.
- Can I damage my key fob by changing the battery myself? It’s unlikely, but be careful when prying open the casing.
- My key fob still doesn’t work after replacing the battery. What should I do? Check the battery orientation and try reprogramming the fob. If it still doesn’t work, consult a professional.
- What are some other reasons my key fob might not be working? A faulty ignition switch or receiver in the car could be the culprit.
- How can I prevent my key fob battery from draining quickly? Avoid exposing it to extreme temperatures and keep it away from other electronic devices.
- Can I use any type of CR2032 battery? Yes, as long as it’s a CR2032. However, choosing a high-quality battery will likely provide a longer lifespan.
- What tools do I need to change the battery? Typically, a small flat-head screwdriver is all you need.
Other articles you may find helpful on KEYFOBPROG include “BMW Key Fob Programming guide” and “Troubleshooting common BMW key fob issues”. Need more support? Contact us via Whatsapp: +1 (641) 206-8880 or visit us at 1326 N Houston St, Amarillo, TX 79107, USA. Our customer service team is available 24/7.
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