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How to Change a Volkswagen Key Fob Battery

A dead key fob battery is never convenient, especially if you’re in a rush. Luckily, replacing the battery in your Volkswagen key fob is a quick and easy task that you can do yourself in just a few minutes. This guide will walk you through everything you need to know, from identifying the battery type to safely installing the new one.

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

Before you begin, it’s helpful to gather the tools you’ll need. Changing your Volkswagen key fob battery requires just a few common household items:

  • A small flat-head screwdriver: This will be used to pry open the key fob casing.
  • A new battery: The most common type of battery for Volkswagen key fobs is the CR2032. To be certain, you can check your owner’s manual or look for the battery type imprinted on the existing battery inside your key fob.
  • Optional: A small tray or container: This can help keep the small parts organized and prevent them from getting lost.

Step-by-Step Guide: Changing the Battery in Your Volkswagen Key Fob

Now that you have everything you need, let’s change that battery!

  1. Locate the release button: Examine your Volkswagen key fob for a small release button or switch. This is usually located on the back or side of the fob.

  2. Release the key blade: Press the release button and gently slide out the metal key blade from the fob.

  3. Separate the casing halves: Use the small flat-head screwdriver to carefully pry open the casing. Insert the screwdriver into the seam where the two halves of the fob meet, and gently twist to separate them.

  4. Identify and remove the old battery: Once the casing is open, you should see the battery. Note its position and polarity (the + and – signs). Carefully remove the old battery by gently prying it out with the screwdriver.

  5. Install the new battery: Insert the new CR2032 battery, ensuring the positive (+) side is facing up, just like the old battery.

  6. Reassemble the key fob: Align the two halves of the casing and press them together firmly until they snap back into place.

  7. Test the key fob: Insert the key blade back into the fob and test all the buttons to ensure they’re functioning properly.

Troubleshooting: What if My Key Fob Still Doesn’t Work?

If you’ve followed these steps and your key fob still isn’t working, here are a few things you can check:

  • Battery installation: Double-check that the new battery is inserted correctly with the positive (+) side facing up.
  • Battery contacts: Inspect the battery contacts inside the key fob for any dirt or corrosion. If necessary, clean them with a cotton swab and rubbing alcohol.
  • Key fob programming: In rare cases, you may need to reprogram your key fob after a battery change. Consult your owner’s manual or contact a Volkswagen dealership for instructions specific to your model.
    change battery volkswagen key fob

How Long Do Volkswagen Key Fob Batteries Last?

The lifespan of a Volkswagen key fob battery can vary depending on factors like usage and environmental conditions. Typically, you can expect a key fob battery to last anywhere from 3 to 5 years.

It’s a good idea to be mindful of the following signs that your key fob battery may be dying:

  • Decreased range: You may notice that you need to be closer to your car for the key fob to work.
  • Intermittent operation: The key fob may work intermittently, requiring multiple button presses.
  • Warning lights or messages: Some Volkswagen models may display a warning message on the dashboard when the key fob battery is low.

Can I Replace the Battery in My Volkswagen Key Fob Myself?

Absolutely! Changing the battery in your Volkswagen key fob is a simple DIY task that most people can handle. By following the steps outlined above, you can save yourself a trip to the dealership and a few dollars in labor costs.

Still Having Trouble? Cardiagtech Can Help!

While changing a Volkswagen key fob battery is a straightforward process, we understand that not everyone is comfortable tackling DIY car maintenance. If you’re experiencing persistent issues with your key fob, or if you simply prefer to leave it to the professionals, CARDIAGTECH can provide expert assistance.

We specialize in remote car diagnostics, programming, and software installation services that can address a wide range of automotive issues, including:

  • Key fob programming and replacement
  • Car key duplication
  • Immobilizer issues
  • And much more!

Contact us today to learn more about our services and how we can get you back on the road with a fully functional key fob.
cheap replacement key fob

Frequently Asked Questions about Changing a Volkswagen Key Fob Battery

Q: What kind of battery does my Volkswagen key fob use?

A: Most Volkswagen key fobs use a CR2032 battery. You can usually find this information in your owner’s manual or by looking at the old battery.

Q: How often should I change my Volkswagen key fob battery?

A: It’s generally recommended to change your Volkswagen key fob battery every 3 to 5 years, or sooner if you notice signs of a dying battery.

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

A: While any reputable brand of CR2032 battery should work, it’s recommended to use a high-quality battery from a trusted brand to ensure optimal performance and longevity.

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

A: If your key fob is still not working, double-check the battery installation and inspect the battery contacts for any dirt or corrosion. You may also need to reprogram your key fob. Refer to your owner’s manual or contact your Volkswagen dealership for assistance.

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

A: As long as you’re careful and follow the instructions, you’re unlikely to damage your key fob by changing the battery yourself. However, if you’re unsure or uncomfortable doing it yourself, it’s always best to seek professional assistance.