Are you experiencing issues with your 2018 Audi A4 key fob? Perhaps it’s becoming increasingly difficult to lock or unlock your doors, or maybe you’ve noticed a warning symbol on your dashboard. A common culprit for these problems is a low battery in your key fob. Fortunately, replacing the battery in your 2018 Audi A4 key fob is a straightforward process you can often handle yourself.
This guide will walk you through the simple steps to replace your 2018 Audi A4 Key Fob Battery, ensuring you can get back to enjoying the convenience of your vehicle without a trip to the service center – unless you prefer! We’ll cover everything you need to know to confidently perform this minor maintenance task.
Identifying Your 2018 Audi A4 Key Fob Type
Before we begin, it’s helpful to understand the type of key fob your 2018 Audi A4 uses. While designs can vary slightly, the battery replacement process for most modern Audi key fobs, including those for the 2018 A4, is quite similar. You’ll likely have a key fob that includes a retractable metal key blade. This is the style we’ll focus on for battery replacement.
Knowing your key fob type ensures you follow the correct procedure, making the battery replacement for your 2018 Audi A4 key fob as smooth as possible.
Step-by-Step Guide to Replacing Your 2018 Audi A4 Key Fob Battery
Replacing the battery in your 2018 Audi A4 key fob requires minimal tools and just a few minutes of your time. Here’s a step-by-step guide:
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Acquire the Correct Battery: You’ll need a CR2032 battery. This is a common 3V lithium coin cell battery readily available at most drugstores, supermarkets, and online retailers. Ensure you have a fresh CR2032 battery before starting.
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Release the Metal Key Blade: Locate the small button or release switch on your key fob. Press and hold this button to release the metal key blade. Slide the blade out completely.
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Locate the Notch: Look inside the key compartment where the metal key blade was just removed. You’ll see a small notch or slot. This is where you’ll insert a tool to open the key fob casing.
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Carefully Pry Open the Fob: Using a small flathead screwdriver or a similar thin, flat tool (like a credit card or plastic pry tool), gently insert the tip into the notch. Apply slight pressure and twist or lever the screwdriver carefully. The key fob casing is designed to pop open at this point. Avoid using excessive force to prevent damage to the plastic casing.
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Open the Casing Further: Once you’ve created a small opening at the notch, you can often gently pry the rest of the key fob casing open by hand. Work your way around the seam, carefully separating the two halves of the fob.
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Remove the Old Battery: With the key fob open, you’ll see the CR2032 battery. Note the orientation of the battery (usually the positive (+) side is facing up). You can typically use your fingertip or the tip of a screwdriver to gently nudge the old battery out of its housing.
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Insert the New Battery: Take your new CR2032 battery and insert it into the battery compartment. Ensure the positive (+) side is facing upwards, matching the orientation of the old battery. Press down gently to make sure it’s securely seated.
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Reassemble the Key Fob: Carefully align the two halves of the key fob casing and snap them back together. Press firmly until you hear or feel the case click securely closed all around.
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Reinsert the Metal Key Blade: Slide the metal key blade back into its slot until it clicks into place.
You’ve now successfully replaced the battery in your 2018 Audi A4 key fob! Test the key fob to ensure it’s working correctly by locking and unlocking your car remotely.
What If Your 2018 Audi A4 Key Fob Still Isn’t Working?
In most cases, replacing the battery will resolve key fob issues. However, if your 2018 Audi A4 key fob still doesn’t seem to be working after a battery replacement, there are a couple of things you can try.
Re-initializing Your Key Fob
Sometimes, after a battery change, your Audi A4 key fob might need to be re-initialized or resynchronized with your vehicle. Here’s a simple method you can try:
- Manual Door Lock: Insert the metal key blade into the driver’s side door lock.
- Manually Lock and Unlock: Use the key to manually lock and then unlock the door.
- Press Unlock Button: Remove the key from the door lock and press the “unlock” button on your key fob.
This process can sometimes re-establish the connection between your key fob and your 2018 Audi A4.
If your key fob remains unresponsive after trying these steps, it might indicate a different issue, or a more complex problem with the key fob itself.
2018 Audi A4 Key Fob Battery Replacement Cost
Replacing the battery in your 2018 Audi A4 key fob yourself is very cost-effective. The CR2032 battery typically costs only a few dollars. You can purchase these batteries inexpensively at many retail locations or online.
If you prefer to have a professional handle the 2018 Audi A4 key fob battery replacement, Audi dealerships and service centers can perform this service. The cost will be higher than DIY due to labor charges, but it can be a convenient option if you prefer not to do it yourself. For specific pricing on professional 2018 Audi A4 key fob battery replacement, it’s best to contact your local Audi service center. You can also inquire about purchasing a replacement battery from their parts center if you wish to handle the replacement yourself but want to ensure you get the correct battery.
When to Seek Professional Assistance
While changing your 2018 Audi A4 key fob battery is usually a simple task, there are situations where seeking professional help is recommended:
- If you’re uncomfortable performing the DIY battery replacement.
- If you encounter difficulty opening the key fob casing.
- If your key fob still doesn’t work after battery replacement and re-initialization.
In these cases, the service experts at your local Audi dealership are equipped to assist you. They can quickly replace your 2018 Audi A4 key fob battery, diagnose any more complex issues, and ensure your key fob is functioning perfectly.
Get Back on the Road with a Fresh Key Fob Battery
Replacing the battery in your 2018 Audi A4 key fob is a minor maintenance task that can restore the convenience and functionality you rely on. By following these simple steps, you can often resolve key fob issues quickly and affordably. Whether you choose the DIY route or prefer professional service, keeping your key fob battery fresh is essential for seamless access to your Audi A4.
For any further assistance with your Audi A4 key fob or other vehicle needs, don’t hesitate to contact your local Audi service center. They are always ready to help you keep your Audi in top condition.
