DIY Guide: How to Change the Battery in a VW Key Fob

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Are you having trouble with your Volkswagen key fob? Is it not working properly? Well, one possible issue could be a dead battery. Don’t fret! In this step-by-step guide, we will show you how to disassemble your Volkswagen key fob and replace the battery yourself. By following these simple instructions, you can save time and money by avoiding a trip to the dealership.

Step 1: Gather the Necessary Tools

Before getting started, make sure you have the following tools readily available:

  • Small screwdriver
  • Flat screwdriver
  • Replacement CR2032 battery

Step 2: Disassembling the Key Fob

  1. Start by positioning the key in the open position, with the key blade extended.
  2. Take the small screwdriver and insert it into the seam where the two halves of the key fob meet.
  3. Gently pry the key fob open, starting from the side and working your way around. Be careful not to damage the plastic casing.
  4. Once the key fob is split in half, remove the half with the battery.

Step 3: Removing the Battery

  1. Locate the battery inside the key fob. It is held in place by a metal retainer.
  2. Using the screwdriver, gently pop out the battery from the side. Take note of the positive side of the battery, as indicated by markings on the battery and the key fob casing.
  3. Dispose of the old battery properly.
  4. Insert the new CR2032 battery, ensuring the positive side faces the same direction as indicated before.
  5. Press the battery into place, ensuring it is secure.

Step 4: Reassembling the Key Fob

  1. Take the remaining half of the key fob.
  2. Remove the Volkswagen emblem by inserting a small flat screwdriver and gently prying it out.
  3. Locate the Philips screw behind the emblem and remove it. Be cautious, as there is a spring inside that could pop out.
  4. Carefully separate the two halves of the key fob.
  5. Take note of the little metal spring connected to the plastic tab inside one of the halves. This is the vehicle’s immobilizer.
  6. Line up the tabs and carefully reattach the two halves of the key fob, making sure they are securely fastened.
  7. Reinsert the screw and tighten it, being mindful of the spring inside.

Step 5: Finalizing the Key Fob Reassembly

  1. Ensure the spring is wound one turn in a counterclockwise direction.
  2. With the key blade facing upwards, align the key fob and press the release button to check if the key flips out properly.

And there you have it! Your Volkswagen key fob is now disassembled, the battery has been replaced, and it has been reassembled successfully. You can now enjoy the convenience of a fully functioning key fob without breaking the bank.

Remember, if you have any questions or need further assistance, feel free to reach out to us. Our team of experts is always ready to help you.