We have dedicated this website to help you solve the little problems you can face with your car . Today, we are going to discover a concern that may seem unimportant but that rather quickly turns out to be frustrating if it is not solved. Indeed, we are going to support you to know how to replace my Audi A8 card battery? The advantage of cards is that they work hands-free, but with no electricity your card will be ineffective. That’s why, first, we will see how the card functions, then how to change the battery of the card of your Audi A8?, and, finally, which is the battery that corresponds to the card of your Audi A8.

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How does the key card of your Audi A8 function?

Before we demonstrate how to change the batteries in your Audi A8 hands-free card, we will fairly quickly explain how it works and the benefits it will offer you. Who hasn’t had issues locating their car keys in their bag or pocket? For a few years now, car producers have been looking into this difficulty. With the advent of new wireless systems, key problems will fairly quickly become a thing of the past! We are going to show you the features and operation of your car key card now:

  • It uses a wireless technology that emits a frequency of 433 MHz.
  • Receivers/transmitters are present on the car and on the card so that both can communicate.
  • It enables you to open the Audi A8 simply by passing your hand in front of the door or by pulling the handle when the card is close to your car
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  • There are two types of key card, one that enables to open and close like a centralized lock with the support of a press button, and the other one that allows to open without even touching the card.
  • There is a spare key in the card so that you can open the door and start your Audi A8 if you run out of battery power.

How do I change the card battery of my Audi A8?

We will now move on to the part that interests you the most in this content, how to change the key card battery of an Audi A8? Effectively this wireless technology needs energy to function. When the batteries of your card are flat you will not be able to wireless open the doors of your car, but with the help of the included physical key you can do it physically. Concerning the ignition, all you have to do is place the card in the slot provided for this purpose, even without a battery, it has a chip that allows your car to start. We now move on to the procedure for replacing the battery of the card in your Audi A8:

  • Press the button at the bottom and pull out the emergency key while doing so.
  • You will need to see a tab that will allow you to open the case of your card in half.
  • Use a slim thing to remove the flat battery from the card
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  • Install the new battery in the slot provided.
  • Close the card.
  • On some models it will work immediately, on others you will have to press the button 4 times to reactivate it.
  • Which type of battery to use for the card of my Audi A8?

    Finally, to end our content page we will support you to choose the card battery type of your Audi A8. They all look very equivalent and it is not always easy to choose the right one. It is a button size 3V Lithium CR battery, relating to the number of the battery according to the year of your Audi A8, it can be either the 2016, the 2032 or the 1620.

    If you wish more tutorials on the Audi A8, go to our Audi A8 category.