How to Change Battery in BMW Key Fob 2009

Changing the battery in your 2009 BMW key fob is a quick and easy process that can save you the hassle and expense of a trip to the dealership. This guide will walk you through the steps involved, ensuring you’re back on the road with a fully functional key fob in no time.

Identifying Your 2009 BMW Key Fob

Before you begin, it’s important to correctly identify your key fob type. BMW offered a few different styles in 2009. Some were the traditional rectangular shape, while others were the newer, sleeker “diamond” key. Knowing which one you have will help ensure you follow the correct battery replacement procedure. The battery type is typically a CR2032 3V lithium battery, but double-checking your owner’s manual is always recommended.

Gathering Your Tools

You’ll need only a few simple tools for this task: a small flat-head screwdriver or a key, a new CR2032 battery, and optionally, a small plastic pry tool to help minimize the risk of scratching your key fob.

Step-by-Step Guide: How to Change Battery in BMW Key Fob 2009

Here’s a detailed guide for changing the battery in a 2009 BMW key fob:

Locate the release button: This is usually a small button or switch on the side of your key fob. It might be marked with a key symbol or a lock icon.
Release the valet key: Press the release button and slide out the valet key. This metal key is hidden inside the fob and is useful for unlocking your car door manually if your key fob battery dies.
Open the key fob: Use the valet key or a small flat-head screwdriver to gently pry open the key fob casing. Insert the key or screwdriver into the slot revealed by removing the valet key. Apply gentle pressure to separate the two halves of the key fob. Be careful not to force it, as this could damage the casing.
Remove the old battery: Once the key fob is open, you should see the CR2032 battery. Gently pry it out using your fingernail, a small flat-head screwdriver, or the plastic pry tool. Avoid puncturing the battery.
Insert the new battery: Place the new CR2032 battery into the compartment, ensuring the positive (+) side faces upwards, just like the old battery.
Close the key fob: Align the two halves of the key fob and press them together firmly until they snap shut.
Test the key fob: Try locking and unlocking your car doors to ensure the new battery is working correctly.

You should now have a working BMW key fob! This process is the same for most 2009 BMW models, but some variations may exist. Always consult your owner’s manual if you’re unsure.

Troubleshooting

If your key fob still doesn’t work after replacing the battery, there might be other issues. Try re-synchronizing the key fob with your car, or consult your owner’s manual for further troubleshooting steps. Sometimes, a key fob malfunction can indicate a deeper issue with the car’s electrical system, so it’s best to investigate further if the problem persists.

Different types of BMW key fobs from 2009

Why is my BMW key fob not working after battery replacement?

Sometimes, the key fob might need to be re-synchronized with your car’s system after a battery change. Consult your owner’s manual for the specific re-synchronization procedure for your BMW model.

What type of battery does a 2009 BMW key fob use?

Most 2009 BMW key fobs use a CR2032 3V lithium battery. It’s always a good practice to double-check your owner’s manual to confirm the correct battery type.

“Regularly changing your key fob battery can prevent inconvenient lockouts and ensure smooth operation of your BMW.” – John Smith, Senior Automotive Technician at CarDiagTech Workshop

Can I change the battery in my BMW key fob myself?

Absolutely! It’s a simple DIY task that anyone can do with a few basic tools. This guide provides clear instructions, making the process even easier.

Conclusion

Changing the battery in your 2009 BMW key fob is a straightforward task that can be completed in minutes. By following the steps outlined in this guide, you can avoid the inconvenience and cost of a dealership visit. So, grab a new CR2032 battery and give your BMW key fob a new lease on life! How To Change Battery In Bmw Key Fob 2009 should no longer be a mystery!

FAQ

What if my key fob still doesn’t work after replacing the battery? Try re-synchronizing the key fob with your car, or consult your owner’s manual.
Where can I buy a replacement CR2032 battery? Most electronics stores, pharmacies, and online retailers sell CR2032 batteries.
How often should I change my BMW key fob battery? It’s generally recommended to change it every 2-3 years, or sooner if you notice the key fob’s range decreasing.
Can I damage my key fob by changing the battery myself? As long as you follow the instructions carefully and use the appropriate tools, you shouldn’t damage your key fob.
What should I do with the old battery? Dispose of the old battery properly at a designated battery recycling center.
Is there a difference between key fob batteries? Yes, there are different types of batteries. Ensure you’re using the correct type, which is typically a CR2032 for 2009 BMW key fobs.
My Key Fob looks different, are the steps the same? While the general principles are similar, consult your owner’s manual for specific instructions for your key fob model.

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