We have dedicated this website to help you solve the little problems you can face with your car . In this guide, we are going to check out a concern that may seem minor but that fairly quickly turns out to be bothering if it is not corrected. Indeed, we are going to help you to know how to replace my Audi Q7 card battery? The benefit of cards is that they work hands-free, but with no electricity your card will be useless. That’s why, first, we will see how the card functions, then how to replace the battery of the card of your Audi Q7?, and, at last, which is the battery that matches to the card of your Audi Q7.

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How does the key card of your Audi Q7 function?

Before we demonstrate how to replace the batteries in your Audi Q7 hands-free card, we will promptly explain how it works and the benefits it will offer you. Who hasn’t had problem locating their car keys in their bag or pocket? For a few years now, car makers have been looking into this issue. With the advent of new wireless systems, key problems will promptly become a thing of the past! We are going to present you the product 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 allows you to open the Audi Q7 simply by passing your hand in front of the door or by pulling the handle when the card is near your car
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  • There are two types of key card, one that allows to open and close like a centralized lock with the help 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 Q7 if you run out of battery power.

How do I replace the card battery of my Audi Q7?

We will now move on to the part that interests you the most in this document, how to replace the key card battery of an Audi Q7? Effectively this wireless technology requires 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 by hand. Regarding the ignition, all you have to do is put 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 Q7:

  • 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 thin thing to remove the flat battery from the card
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  • Put in the new battery in the slot provided.
  • Close the card.
  • On some models it will work instantly, 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 Q7?

    Finally, to conclude our short post we will help you to select the card battery type of your Audi Q7. They all look very equivalent and it is not always easy to select the right one. It is a button size 3V Lithium CR battery, concerning the number of the battery according to the year of your Audi Q7, it can be either the 2016, the 2032 or the 1620.

    If you need more tutorials on the Audi Q7, go to our Audi Q7 category.