An Audi key fob battery could be faulty if you experience difficulty locking or unlocking your vehicle remotely. In this case, all you will have to do is replace the key battery, and you'll be able to unlock and lock your Audi again. Considering that there are three types of Audi key fobs, you'll need to know how to change the batteries accordingly. Learn how to replace Audi car key batteries below.

Signs Your Audi Key Fob Needs a Battery Replacement

When the fob battery becomes less strong, the transmitter loses its range. If you find that you have to be a lot closer to your Audi car than usual, that is an initial sign that your range is decreasing. This is an indication that you need to replace your battery. Other signs include:

  • If your key does not transmit a signal
  • If your vehicle does not accept the signal after repeatedly pressing the button
  • If your key remote is unreliable or inconsistent

A Guide to Replace Audi Car Batteries

There are different kinds of Audi keys, and consequently, there are different kinds of Audi keys batteries, which means replacing the battery for each of them will be a little different. A simple guide has been compiled below to simplify the process for Audi drivers: 

Replacement of Audi Flip Key Battery

  • Separate the case of the fob into two halves using a flat screwdriver. 
  • You can set aside the side that contains the flip metal key.
  • The other half must be separated with a screwdriver. 
  • Remove the battery from the device. 
  • You should replace the new battery in the same place as the old one. 
  • Once you hear the shell snap, you are done. 
  • Assemble the key again by joining the two halves. 

Replacement of Audi Smart Keyless Entry Remote Battery

  • Put your thumb on the chrome part of the key to release the key. 
  • Make sure the metal blade of the key is removed from the shell. 
  • The battery must be removed, with the positive side facing up.
  • Remove the battery. 
  • Place the new battery in the same location as the old one. 
  • Ensure that the battery holder is attached to the shell again. 
  • Incorporate the metal key back into the shell. 

Replacement of Audi Remote Battery

  • Flip open the metal key. 
  • Using a small screwdriver, press down the key's black cover. 
  • Remove the back cover from the fob. 
  • Locate the battery inside the fob by removing the back cover. 
  • Remove the battery. 
  • Replace the new battery in the same place inside the fob once the old one has been removed.
  • Reattach the back cover to the fob. 

Replace Your Audi Key Battery at Audi New Rochelle

Even though replacing your Audi key battery is fairly straightforward, it is recommended that you let professionals handle it with care. You can schedule service at the service center only at Audi New Rochelle near Eastchester. We will take care of any replacement Audi key fob battery needs you might have, so you can continue to drive smoothly on the roads. Feel free to contact us if you have any questions. 


Audi New Rochelle

2 Harrison Street
Directions New Rochelle, NY 10801

  • Sales: (914)779-2020
  • Service: 877-440-6707
  • Parts: (877) 628-5701

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