Audi A4 Key Fob Battery Replacement Guide (1997 – 2005)

Introduction to Audi A4 Key Fob Battery Replacement

Replacing the battery in your Audi A4 key fob is a simple task that you can do at home in just a few minutes. This guide will walk you through the process step-by-step, ensuring that your key fob is back to working order quickly. The only tools you need are the correct battery and possibly a flathead screwdriver.

Identifying the Correct Battery

The Audi A4 key fob uses either a CR2032 or a CR1632 battery. Identifying the correct battery is crucial for the replacement process. The key fob may come in different versions, such as a two-button, three-button, or four-button model, but the battery replacement process remains the same.

To determine which battery you need, you can open the key fob and check the existing battery. The CR2032 is larger, while the CR1632 is smaller. If you don’t have the battery on hand, you can purchase them online from Amazon or Amazon.

Opening the Key Fob

Opening the key fob is the first step in replacing the battery. There are two methods to do this:

• Pull the two halves apart
• Use a flathead screwdriver

To pull the two halves apart, simply grip the key fob and pull along the line separating the two halves. If this proves difficult, use a flathead screwdriver. Insert the screwdriver into the hole and twist to create a space, then pull the halves apart.

Accessing the Battery Compartment

Once the key fob is open, you need to access the battery compartment. This can be done by:

• Using your fingers
• Using a flathead screwdriver

Grip the edges of the compartment and pop it open. If it’s too tight, use the screwdriver to pry the two halves apart gently.

Replacing the Battery

Now that you have access to the battery compartment, you can replace the old battery with a new one. Follow these steps:

1. Identify the battery type (CR2032 or CR1632)
2. Remove the old battery
3. Insert the new battery with the positive side facing down

Ensure that the positive side, marked with text, is facing down. This is the same for both battery types.

Reassembling the Key Fob

After replacing the battery, you need to reassemble the key fob. This involves:

• Placing the circuit board back in place
• Snapping the two halves together

Ensure that the circuit board is correctly positioned, then press the two halves of the key fob together until they snap into place. Give it a firm squeeze to ensure it’s secure.

Testing the Key Fob

With the key fob reassembled, test it to ensure that the new battery is working correctly. Press the buttons to see if the key fob responds as expected. If it does, you’ve successfully replaced the battery.

Additional Resources

If you encounter any issues or need further assistance, there are numerous resources available online. The FobBattery website offers comprehensive guides and photos to help you through the process. Additionally, you can purchase replacement batteries and other key fob accessories from Amazon and Amazon.

Frequently Asked Questions

What tools do I need to replace the battery?

You will need a new battery (CR2032 or CR1632) and possibly a flathead screwdriver to open the key fob.

How do I know which battery to use?

Open the key fob and check the existing battery. It will either be a CR2032 or a CR1632.

Can I use any CR2032 or CR1632 battery?

Yes, any standard CR2032 or CR1632 battery will work.

What if I can’t open the key fob?

If you can’t open the key fob by pulling it apart, use a flathead screwdriver to create a gap and then pull the halves apart.

How do I dispose of the old battery?

Dispose of the old battery according to local regulations. Many places have battery recycling programs.

Where can I find more information?

For more detailed guides and photos, visit the FobBattery website.