Introduction
Replacing the battery in a Volvo S40 key fob is a straightforward process that anyone can do. This guide will walk you through each step to ensure your key fob is functioning properly again. All you’ll need is a flathead screwdriver and a CR2450 battery.
- Pack of 2 batteries
- Lithium coin batteries for watches and electronic devices
- Has a power of 3 volts
Tools and Materials Needed
Before you begin, gather the necessary tools and materials. You’ll need a flathead screwdriver and a CR2450 coin battery. You can easily purchase these batteries online, such as on Amazon.
- Flathead screwdriver
- CR2450 coin battery
Step 1: Locate the Indentation
The first step is to find the indentation on the top of the key fob. This is where you’ll insert the screwdriver to open the key fob.
Look closely at the key fob and identify the small indentation. This is usually located on the top edge of the fob.
Step 2: Pry Open the Key Fob
Once you’ve located the indentation, insert the flathead screwdriver. If your screwdriver is small enough, it should fit right inside. If not, use the corner of the screwdriver.
Push down gently and twist the screwdriver until the key fob starts to open. Be careful not to use too much force to avoid damaging the fob.
Step 3: Remove the Old Battery
With the key fob open, you can now see the old battery. Look for a plastic piece that slightly covers the edge of the battery. This is where you’ll need to push down to remove the battery.
- Push down on the plastic piece
- Lift the edge of the battery
- Remove the old battery
Gently push down on the plastic piece and lift the battery from the other side. The battery should pop out easily.
Step 4: Insert the New Battery
Now that the old battery is out, it’s time to insert the new CR2450 battery. Make sure the positive side, marked with a plus sign, is facing up.
- Slide the battery under the plastic piece
- Click it down into place
Slide the battery under the plastic piece and press it down until it clicks into place. Ensure the battery is secure before proceeding.
Step 5: Reassemble the Key Fob
With the new battery in place, you can now reassemble the key fob. Line up the two halves of the fob and press them together until they click.
- Line up the fob halves
- Press together until they click
Make sure the fob is securely closed to prevent the battery from falling out.
- Pack of 2 batteries
- Lithium coin batteries for watches and electronic devices
- Has a power of 3 volts
Testing the Key Fob
After replacing the battery, it’s important to test the key fob to ensure it’s working correctly. Try locking and unlocking your car to see if the fob responds.
If the key fob doesn’t work, double-check that the battery is installed correctly and that the fob is properly closed.
Additional Resources
If you need more information or assistance, there are several resources available. You can visit FobBattery’s Volvo Key Fobs Guide for more detailed instructions and other helpful guides.
For those with different car models, FobBattery offers a comprehensive database of key fob battery replacement guides. Check out their website at FobBattery for more information.
Frequently Asked Questions
What type of battery does the Volvo S40 key fob use?
The Volvo S40 key fob uses a CR2450 coin battery. These are widely available and can be purchased online.
How often should I replace the key fob battery?
Key fob batteries typically last 1-2 years, depending on usage. If you notice the key fob is not working as well, it may be time to replace the battery.
Can I use a different type of battery?
It’s recommended to use the specified CR2450 battery. Using a different type may not fit properly or provide the correct voltage.
What if my key fob still doesn’t work after replacing the battery?
If the key fob still doesn’t work, ensure the battery is installed correctly and the fob is securely closed. If it still doesn’t work, there may be an issue with the key fob itself.
Where can I buy a CR2450 battery?
You can buy CR2450 batteries at most electronics stores or online retailers like Amazon.
- Pack of 2 batteries
- Lithium coin batteries for watches and electronic devices
- Has a power of 3 volts
Conclusion
Replacing the battery in your Volvo S40 key fob is a simple and quick process. With just a flathead screwdriver and a CR2450 battery, you can have your key fob working like new in no time. If you found this guide helpful, feel free to check out more resources on FobBattery for other car models and key fob types.