How to Open an Audi Key Fob to Replace the Battery

Your Audi keyless entry is about more than unlocking your vehicle; it's the key to hassle-free car convenience. However, once that reassuring click ceases to function or the range proves embarrassingly short, a battery change is often due. Common to most car owners, the routine task occurs every two to three years, yet many do hesitate to do it themselves. If you ever need expert support, you can always contact Arrowhead Imports as an Audi repair center in Peoria, Arizona, for additional guidance.

It is incredibly simple to replace your Audi key fob battery, requiring no longer than a few minutes. Read this step-by-step guide and you’ll soon be on the way!

What You'll Need to Do the Job

Prior to beginning, collect the following necessary tools. It’s likely that you have everything you need at home already.

You will require a small flathead screwdriver or plastic prying tool, a new CR2032 battery (the standard used on most Audis), and a soft cloth to handle the pieces. Newer master keys for the Audi might employ other sizes of batteries, so verify your owner's handbook if need be.

Opening Your Audi Key Fob

If you're wondering how to open an Audi key fob, begin by finding the small release slider or switch on your key. All standard units on the Audi line have a secret key blade that slides out; release this piece first to allow access to internal pieces.

Find a small seam or groove on the edge of the key fob casing. Insert your flathead screwdriver or plastic tool here, very carefully prying the two pieces apart. The key fob will come apart fairly easily, opening the Audi key fob and exposing the internal chamber containing the battery.

Beware not to push too forcefully, as this will most likely crush the plastic housing. Check again if there's resistance that you've found the proper point where it separates. How do you open an Audi key fob? It’s all about gentle pressure and finding the right seam.

Replacing the Battery

Once opened, you'll see the circular battery nestled in its compartment. Note the battery's orientation before removing it - the positive side typically faces up, but this varies by model.

Gently lift the old battery off using your fingernail or the tip of the screwdriver. Insert the fresh CR2032 battery, ensuring that it rests flat in the compartment, facing the correct polarity. It should go on smoothly without forcing it.

Reprogramming Your Key Fob

Assemble the two pieces of the key fob housing together gently and press the pieces together. You should hear a soft clicking as the pieces go back together. Insert the metal key blade back into the housing until it clicks back into place.

Test your key fob first on your vehicle, pressing the unlock or lock buttons. The LED should illuminate brightly, and your vehicle should respond within the normal range. Remember, a successful Audi key fob open operation means the internal battery is seated properly.

Common Issues and Solutions

If your key fob doesn't work after battery replacement, first verify the battery orientation matches the original setup. Double-check that the battery contacts are clean and making proper connection with the fob's internal components.

Occasionally, the key fobs need to be reprogrammed once the battery has been changed. If no normal functioning takes place, refer to your owner's handbook for the special programming routine, usually a cycle of key turns and switch operations.

Also, corrosion on the battery contacts can prevent proper function. Clean these gently with a dry cloth or cotton swab if you notice any buildup.

Keeping Your Audi On Point

Replacing the key fob battery on your car is a simple task that preserves your access to your vehicle's convenience features. Employing the correct tool kit and practicing careful attention, this task, which takes five minutes, forestalls a dealership visit and keeps your key fob operating reliably. If you want a quick reminder for the next time you need to open an Audi key fob, bookmark this guide for future reference.

Every other two to three years, or as needed if range is reduced or the unit oscillates, a routine battery change will prevent an inconvenience. Stash a second CR2032 battery in your glovebox - you'll be glad you did the next time a change is needed.