How to Change the Battery in Your Audi Key Fob: A Simple Guide

Is your Audi key fob struggling to lock or unlock your car from a distance? You might be facing a common issue: a dead or dying key fob battery. The good news is, replacing it is a straightforward task you can easily handle yourself, saving you time and a trip to the dealership. This guide from the experts at keyfobx.com will walk you through the simple steps of an Audi key fob battery replacement, ensuring you’re back to effortlessly controlling your vehicle in no time.

While the process is generally similar, Audi key fobs come in a few different styles, each requiring a slightly different approach to access the battery compartment. Don’t worry, we’ve got you covered for the most common types. Let’s dive into how to replace your Audi key fob battery and regain full remote functionality.

Step-by-Step Guide to Replacing Your Audi Key Fob Battery

Before you begin, you’ll need a few common household tools and the correct replacement battery. For most Audi key fobs, you’ll need a small flathead screwdriver and a CR2032 or CR1620 battery. Check your owner’s manual or the markings on your old battery to confirm the correct type for your specific key fob.

Here’s how to change the battery in each type of Audi key fob:

Replacing the Battery in an Audi Remote Key Fob

This type of key fob usually features a flip-out physical key.

1. Flip Out the Metal Key: Begin by pressing the button to release and flip out the metal key blade. This will give you access to the key fob casing.

2. Locate the Notch and Open the Casing: Look for a small notch or seam on the key fob casing, usually near the key ring attachment.

3. Use a Screwdriver to Pry Open the Casing: Insert a small flathead screwdriver into the notch and gently twist to pry the two halves of the key fob casing apart. Be careful not to apply too much force to avoid damaging the plastic.

4. Identify the Battery Location: Once open, you’ll see the battery compartment. The battery is usually easily accessible.

5. Remove the Old Battery: Carefully remove the old CR2032 battery. You may be able to gently pry it out with your fingernail or the small screwdriver. Note the orientation of the battery (+ side up or down) before removing it.

6. Insert the New Battery: Place the new CR2032 battery into the compartment, ensuring it’s in the correct orientation as the old one.

7. Reassemble the Key Fob: Snap the two halves of the key fob casing back together until they click securely. Ensure there are no gaps and the case is firmly closed.

Alt text: Opening an Audi remote key fob to access and replace the CR2032 battery.

Replacing the Battery in an Audi Smart Keyless Entry Remote

The smart key, or keyless entry remote, often has a more streamlined design without a flip-out key.

1. Find the Release Button and Remove the Emergency Key: Locate a small release button, often chrome or metallic, usually situated on the side or bottom edge of the key fob. Press and hold this button while simultaneously pulling out the emergency metal key blade.

2. Expose the Battery Holder: Once the key blade is removed, you’ll see an exposed plastic battery holder compartment where the key blade was housed.

3. Remove the Battery Holder: Gently pull out the battery holder from the key fob. It should slide out relatively easily.

4. Access and Remove the Old Battery: The CR2032 battery will be visible in the battery holder. Remove the old battery, again noting its orientation.

5. Insert the New Battery: Place the new CR2032 battery into the battery holder in the correct orientation.

6. Reinsert the Battery Holder and Emergency Key: Slide the battery holder back into the key fob until it clicks into place. Finally, reinsert the emergency metal key blade until it locks securely.

Alt text: Replacing CR2032 battery in an Audi smart keyless entry remote after removing the emergency key and battery holder.

Replacing the Battery in an Audi Flip Key Fob (Older Models)

For older Audi flip key fobs, the process is slightly different and may require a different battery type.

1. Separate the Key Fob Casing: Use a flathead screwdriver to carefully pry apart the two halves of the key fob casing. Insert the screwdriver into the seam running around the edge of the fob and gently twist to separate the case.

2. Focus on the Half Without the Flip Key: Set aside the half of the casing that contains the flip-out metal key. You’ll be working with the other half.

3. Open the Shell of the Remaining Half: Use your flathead screwdriver again to further separate the shell of this half of the casing. This may involve prying at another seam or notch to access the battery compartment.

4. Remove the Old Battery: Inside, you’ll find the battery. This type may use a CR1620 battery. Remove the old battery, noting its orientation.

5. Insert the New Battery: Insert the new CR1620 battery into the compartment, ensuring correct polarity.

6. Snap the Shell Closed: Press the shell back together until you hear a snapping sound, indicating it’s securely closed.

7. Reassemble the Key Fob Halves: Finally, align and press the two halves of the key fob casing back together until they are firmly rejoined.

Alt text: Step-by-step process of changing the CR1620 battery in an older Audi flip key fob using a screwdriver to open the casing.

When to Consider Professional Help

While changing your Audi key fob battery is typically a DIY-friendly task, there are situations where seeking professional assistance might be beneficial. If you encounter difficulty opening your key fob, are unsure about the correct battery type, or if replacing the battery doesn’t resolve the issue, it’s wise to consult with an Audi service professional. They can diagnose any underlying problems and ensure your key fob is functioning correctly.

Get Back to Smooth Driving with a Fresh Key Fob Battery

Replacing your Audi key fob battery is a simple maintenance task that can restore the convenience of remote locking and unlocking. By following these steps, you can confidently change your battery and avoid the frustration of a non-responsive key fob. If you prefer professional assistance or have further questions, don’t hesitate to schedule a service appointment with our expert team at keyfobx.com. Contact us today to keep your Audi experience seamless.