Are you an owner of an Audi car and recently changed the battery in your key fob, only to find out that it’s not working anymore?
In this article, we’ll explore the possible reasons why your Audi key fob is not working after a battery change and provide you with helpful tips to troubleshoot and solve the problem.
So let’s get started!
Causes for Audi Key Fob Not Working After Battery Change
There are a few common reasons why an Audi key fob may stop working after a battery change. Let’s take a look at each one and how to address them.
Dead Battery
This may seem obvious, but the new battery you installed in your key fob may be dead or not properly connected.
Reasons: It’s possible that the new battery was not fully charged or you may have accidentally inserted it in the wrong direction, causing it to lose power.
Solution: First, make sure to properly insert the battery with the correct polarity (+ and -) facing up. If this doesn’t work, try replacing the new battery with another one that is fully charged.
Also, make sure to check the battery’s expiration date and try replacing it again with a fresh one.
Key Fob Programming
Sometimes, replacing the battery in your key fob may cause it to lose its programming. This is more likely to happen with older models of Audi cars.
Reasons: When you replace the key fob battery, it temporarily disconnects the key from the vehicle’s memory. If your Audi is an older model, this may result in the key fob losing its programming and no longer being recognized by your car’s security system.
Solutions: If this is the case, you’ll need to reprogram your key fob using a specialized tool or take it to a dealer for assistance.
Step-by-Step Guide to Reprogramming Audi Key Fob with a Specialized Tool:
- Purchase a specialized key fob programming tool for Audi cars. These can be found online or at an automotive supply store.
- Locate the OBD II (On-Board Diagnostics) port in your car, usually located under the steering wheel column.
- Plug the programming tool into the OBD II port. The tool should power on and display a menu for key fob programming.
- Follow the prompts on the tool’s menu to program your new key fob. This may involve entering a specific code or pressing buttons on the key fob itself.
- Once the programming is complete, test the new key fob by locking and unlocking the car multiple times.
- If the key fob still does not work, try repeating the steps or seek assistance from a professional auto technician.
Faulty Key Fob
It’s possible that your key fob may be faulty and need to be replaced.
Reasons: Key fobs can malfunction due to wear and tear, water damage, or other issues. If your key fob is not working after a battery replacement and reprogramming, it may need to be replaced.
Solution: Contact your Audi dealer or a certified automotive technician for assistance in replacing the faulty key fob. They will be able to program the new key fob to work with your car’s security system.
In addition, you may want to consider getting a spare key fob in case of future issues or emergencies. It’s always better to be prepared and have a backup key fob on hand.
Car Battery Needs to Be Replaced
Another reason why your Audi key fob may not be working after a battery change is that your car battery also needs to be replaced.
Reasons: If your car battery is old or weak, it may not have enough power to send a signal to the key fob. This can result in the key fob not working properly.
Solution: Check your car’s battery and replace it if necessary. Once the car battery is replaced, try reprogramming your key fob again. If it still does not work, then there may be another issue at hand and it is best to seek professional help.
Simple Solutions to Get Your Audi Key Fob Working Again
Now that you know some of the possible causes for your key fob not working after a battery change, let’s explore some simple solutions to get it working again.
- Check for Obstructions – Sometimes, dirt or debris can get stuck in the key fob’s buttons, preventing it from working properly. Use a small brush or compressed air to clean out any obstructions.
- Reset Key Fob – If your key fob has lost its programming, you may be able to reset it by pressing and holding the lock and unlock buttons simultaneously for 15 seconds. Release the buttons and try using the key fob again.
- Reprogram Key Fob – If resetting doesn’t work, you may need to reprogram your key fob using a specialized tool or by taking it to a dealer.
- Replace Battery Again – It’s always possible that the new battery you installed in your key fob was also dead or faulty. Try replacing it again with a fresh battery.
- Replace Key Fob – If all else fails, you may need to replace your key fob entirely. Contact your dealer for assistance in purchasing and programming a new one.
FAQs
How do I resync my Audi key fob?
To resync your Audi key fob, you can follow these steps:
- Sit inside your car with the key fob and make sure all doors are closed.
- Insert your key into the ignition and turn it to the “On” position, but do not start the car.
- Use the remote control portion of your key fob to lock and unlock the doors. Repeat this step 2-3 times.
- Turn off the ignition and remove the key.
- Test your key fob by using it to lock and unlock the doors.
Can I program an Audi key fob myself?
In most cases, it is not possible to program an Audi key fob yourself. This usually requires specialized tools and equipment that are only available to dealers or trained professionals.
However, some models may have a self-programming feature that allows you to reset the key fob by following specific steps outlined in the owner’s manual.
If you’re unsure if your Audi model has this option, consult your owner’s manual or contact your dealer for assistance.
Can a used Audi key fob be reprogrammed?
Yes, a used Audi key fob can be reprogrammed. However, this process should be done by a professional to ensure it is programmed correctly and works with your specific car.
It is not recommended to attempt to reprogram a used key fob yourself as it may cause further issues. Additionally, make sure to only purchase used key fobs from reputable sources to avoid any potential security risks.
How much does it cost to reprogram the Audi key fob?
The cost of reprogramming an Audi key fob can vary depending on the model and year of your car, as well as where you choose to have it done.
On average, it can range from $50 to $100 for a professional service.
It is important to consult with your dealer or a trained professional to get an accurate estimate for your specific vehicle. Keep in mind, that attempting to reprogram the key fob yourself may result in additional costs if it is not done correctly.
Can you change an audio key battery yourself?
Yes, you can change an Audi key battery yourself. Unlike programming the key fob, changing the battery is a simple process that can be done at home.
Most Audi key fobs use standard watch batteries which can be purchased at most convenience or hardware stores.
Refer to your owner’s manual for instructions on how to open the key fob and replace the battery. If you are unsure or uncomfortable doing it yourself, consult a professional for assistance.
How do I program my Audi key with one key?
If you only have one key for your Audi, it is recommended to get a spare key programmed as soon as possible. In the meantime, you can still use your single key by following these steps:
- Enter your car and close all doors.
- Insert the key into the ignition and turn it to the “on” position without starting the engine.
- Press and hold the unlock button on your key fob for 5 seconds.
- While still holding the unlock button, press and release the lock button three times within 10 seconds.
- Release both buttons and turn off the ignition.
- Test the key by locking and unlocking your car using the newly programmed key fob. If it does not work, repeat the steps.
Can a locksmith program an Audi key fob?
Yes, a locksmith can program an Audi key fob. However, the process may vary depending on the locksmith’s equipment and expertise.
It is recommended to consult with your dealer or a trained professional for programming services to ensure the proper functionality of your key fob.
Attempting to reprogram it yourself may result in additional costs if not done correctly.
Always make sure to provide the locksmith with all necessary information, such as your car’s make, model, and year, to ensure compatibility.
How do I relearn my Audi key?
If your Audi key fob is not working after a battery change, you may need to relearn it. Here’s how:
- Unlock your car’s driver-side door using the physical key.
- Enter your car and close all doors.
- Turn the ignition on and off five times in 10 seconds, leaving it in the “on” position for the fifth time.
- Press and hold the unlock button on your key fob for 5 seconds.
- While still holding the unlock button, press and release the lock button three times within 10 seconds.
- Release both buttons and turn off the ignition.
- Test your key by locking and unlocking your car using the newly relearned key fob.
How long does it take to reprogram an Audi key fob?
The process of reprogramming an Audi key fob typically takes less than five minutes. However, it may take longer if there are any compatibility issues or if you are attempting to program multiple key fobs at once.
It is recommended to consult with a trained professional for accurate timing and proper functioning of your key fob. Remember to always provide all necessary information, such as your car’s make, model, and year, to ensure compatibility.