Is your 2009 BMW 750Li key fob acting up? Before you run to the dealership, a dying battery might be the culprit. Luckily, replacing the key fob battery is a quick and easy DIY project you can tackle at home. This guide will walk you through everything you need to know about 2009 Bmw 750li Key Fob Battery Replacement, from choosing the right battery to getting your key fob back in action.
What type of battery does a 2009 BMW 750Li key fob need?
Your 2009 BMW 750Li key fob uses a CR2032 battery, a common lithium coin cell battery found at most electronics stores.
Signs your key fob battery needs replacing
Ignoring a dying key fob battery can leave you stranded! Here are a few telltale signs that it’s time for a replacement:
- Decreased range: Do you find yourself standing closer to your car to unlock it? This is a classic sign of a weakening battery.
- Intermittent functionality: Is your key fob working sporadically? Sometimes it works, sometimes it doesn’t – a sure sign the battery is on its last legs.
- Warning messages: Your BMW may display warnings on the dashboard like “Key Fob Battery Low” when it’s time for a fresh battery.
Replacing your 2009 BMW 750Li key fob battery: A step-by-step guide
Replacing the battery in your 2009 BMW 750Li key fob is surprisingly straightforward. Here’s how to do it:
- Locate the release button: On the back of your key fob, find the small, round release button.
- Release the emergency key: Gently press the release button and slide the emergency key blade out of the key fob.
- Open the key fob: Use the emergency key blade or a small flat-head screwdriver to carefully pry open the key fob casing at the seam.
- Remove the old battery: Identify the CR2032 battery inside and gently pry it out. Avoid touching the battery terminals.
- Insert the new battery: Place the new CR2032 battery into the key fob, ensuring the positive (+) side is facing up.
- Reassemble the key fob: Align the two halves of the key fob casing and press firmly until you hear a click, indicating it’s securely closed.
- Reinsert the emergency key: Slide the emergency key blade back into its slot on the key fob.
- Test your key fob: Make sure all the buttons, including lock, unlock, and trunk release, are functioning correctly.
Expert Tips for Key Fob Battery Replacement
We asked David Anderson, Senior Automotive Technician at CarDiagTech Workshop, for his expert advice on key fob battery replacements. Here’s what he recommends:
“Always handle the new battery with care to avoid short-circuiting it. And remember, if you’re uncomfortable doing this yourself, a qualified mechanic can replace the battery for you in minutes.”
Pro Tip: Some owners prefer to use a small piece of tape to secure the new battery in place for added security.
FAQs about 2009 BMW 750Li Key Fob Battery Replacement
Q: How long does a key fob battery last?
A: On average, a key fob battery can last anywhere from 3 to 5 years, depending on usage and environmental factors.
Q: Can I use any CR2032 battery for my key fob?
A: While most CR2032 batteries will work, it’s best to choose a reputable brand for optimal performance and lifespan.
Q: What if my key fob still doesn’t work after replacing the battery?
A: There could be other issues with your key fob, such as a faulty button or a programming error. In these cases, it’s best to consult a qualified automotive locksmith or your BMW dealership.
Don’t let a dead key fob battery leave you stranded! With these simple steps and expert advice, you can easily replace the battery in your 2009 BMW 750Li key fob and get back on the road in no time.
Need help with your Key Fob or other automotive diagnostic needs? Contact CarDiagTech Workshop today via WhatsApp: +1(641)206-8880 or Email: [email protected]. Our team of experts is available 24/7 to assist you.
Leave a Reply