Are you struggling to lock or unlock your Audi? Seeing a low battery warning light on your dashboard? It might be time to replace your Audi key fob battery. Don’t worry, this is a common issue and a straightforward fix. As your trusted auto repair experts at keyfobx.com, we’ll guide you through the process of replacing your Audi key fob battery, ensuring you can get back on the road with a fully functioning key.
Whether you drive an Audi Q3, Q5, Q7, or another model, understanding how to change your key fob battery is a valuable skill. This guide will cover the most common types of Audi key fobs and provide step-by-step instructions to replace their batteries yourself. Let’s dive in and learn how to keep your Audi key working perfectly.
Understanding Your Audi Key Fob Type
Audi key fobs come in various designs, especially across different models and years. Knowing which type you have is the first step in a successful battery replacement. While your owner’s manual is always the best resource for specifics, we’ll cover three prevalent types here:
1. Older Audi Flip Key Fob
This style is found in older Audi models. It’s characterized by a key that flips out from the fob body.
Battery Type: CR1620 (x2)
Replacement Steps:
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Separate the Fob: Using a flathead screwdriver, carefully pry apart the two halves of the key fob. Start at the seam and gently twist the screwdriver to separate them.
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Access the Battery Cover: Identify the half of the fob that doesn’t contain the flip key. You’ll see a small, separate battery cover on this side.
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Open the Battery Cover: Again, use your flathead screwdriver to gently detach the battery cover. Insert the screwdriver into the designated slot (if visible) or along the edge and carefully pry it open.
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Replace Batteries: Remove the old 1620 batteries. Note their orientation (usually positive side up) before removing them. Insert two new CR1620 batteries in the same orientation.
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Reassemble: Snap the battery cover back into place until it’s securely closed. Then, press the two halves of the key fob back together until they click shut.
Alt text: Opening older Audi flip key fob to replace CR1620 batteries.
2. Newer Audi Flip Key Fob
Newer Audi models also use a flip key fob, but with a slightly different design for battery access.
Battery Type: CR2032
Replacement Steps:
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Release the Metal Key: Locate the key release button on your fob. Press it to flip out the metal emergency key blade.
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Find the Notch: With the metal key flipped out, look inside the key compartment. You’ll see a small notch or slot.
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Pop Open the Cover: Insert a small flathead screwdriver into this notch. Gently twist to pop open the battery cover.
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Remove the Cover: Once popped, you can usually pry the cover completely off from the keyring loop end.
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Replace Battery: Remove the old CR2032 battery. Note the positive (+) side facing up. Install a new CR2032 battery with the positive side facing up.
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Reattach Cover: Carefully align the plastic notches on the battery cover with their slots on the fob. Gently press the cover back into place until it clicks securely.
Alt text: Replacing CR2032 battery in newer Audi flip key fob, noting positive side up.
3. Audi Smart Keyless Entry Remote
This modern key fob is common in many current Audi models and offers keyless entry and start features.
Battery Type: CR2032
Replacement Steps:
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Remove Metal Key Blade: Locate the release button (usually a small slide or push button) to remove the metal emergency key blade from the smart key fob.
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Locate the Notch: Look in the area where the metal key blade was housed. You should see a small notch or seam.
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Pry Open the Fob: Insert a flathead screwdriver into the notch, angling it slightly towards the center of the fob. Carefully rotate the screwdriver to pry the fob shell open. It may split into two halves.
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Replace Battery: Once open, you’ll see the CR2032 battery. Remove the old battery and replace it with a new CR2032, ensuring the positive (+) side is facing upwards.
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Snap Back Together: Carefully align the two halves of the key fob shell and press them firmly together until they snap securely closed.
Alt text: Step-by-step battery replacement for Audi smart keyless entry remote, using CR2032 battery.
Reinitializing Your Audi Key Fob After Battery Change
In most cases, your Audi key fob should work immediately after a battery replacement. However, if you find your car isn’t recognizing the key, you might need to reinitialize it. Here’s a simple method to try:
- Manual Door Lock: Insert the metal key blade into the driver’s side door lock.
- Manual Lock/Unlock: Manually unlock and then lock the door using the key.
- Unlock Button Press: Remove the key from the door and press the “unlock” button on the key fob.
This process often resynchronizes the key with your Audi’s system. If it still doesn’t work, consulting with Audi service professionals is recommended.
Audi Key Fob Battery Replacement Cost
Replacing your Audi key fob battery yourself is very cost-effective. The CR1620 and CR2032 batteries are widely available at drugstores, supermarkets, and online retailers for typically between $5 to $15 per battery, depending on the brand and quantity purchased.
If you prefer professional assistance, Audi dealerships or service centers can replace the battery for you. However, this will involve labor costs in addition to the battery price, potentially increasing the total cost. Doing it yourself is a great way to save money and gain a little DIY car maintenance experience.
Need Further Assistance?
While replacing an Audi key fob battery is usually simple, if you encounter any issues or prefer professional help, the experts at keyfobx.com are here to assist. We offer comprehensive key fob services and can ensure your Audi key is functioning perfectly. Contact us today for any key fob related inquiries or assistance!
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