We are used to accompanying you in the small problems that go with the use of your car. In this guide, we are going to check out a concern that may seem minor but that quickly turns out to be bothering if it is not repaired. In truth, we are going to help you to know how to replace my Volkswagen Polo 5 card battery? The advantage 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 works, then how to replace the battery of the card of your Volkswagen Polo 5?, and, at last, which is the battery that matches to the card of your Volkswagen Polo 5.

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How does the key card of your Volkswagen Polo 5 operate?

Before we teach you how to replace the batteries in your Volkswagen Polo 5 hands-free card, we will quickly illustrate how it works and the benefits it will give you. Who hasn’t had problem finding their car keys in their bag or pocket? For a few years now, car manufacturers have been looking into this trouble. With the advent of new wireless systems, key problems will quickly become a thing of the history! We are going to reveal 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 permits you to open the Volkswagen Polo 5 simply by passing your hand in front of the door or by pulling the handle when the card is close to your car
  • .

  • There are two types of key card, one that permits to open and close like a centralized locking mechanism with the help of a 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 Volkswagen Polo 5 if you run out of battery power.

How do I change the card battery of my Volkswagen Polo 5?

We will now move on to the part that interests you the most in this content, how to replace the key card battery of an Volkswagen Polo 5? Effectively this wireless technology needs energy to operate. 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. Concerning the ignition, all you have to do is insert 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 Volkswagen Polo 5:

  • Press the button at the bottom and pull out the emergency key at the same time.
  • You will need to see a tab that will allow you to open the case of your card in half.
  • Use a thin object to take off the flat battery from the card
  • .

  • 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 Volkswagen Polo 5?

    At last, to conclude our article we will help you to select the card battery type of your Volkswagen Polo 5. They all look very equivalent and it is not always easy to select the correct one. It is a button size 3V Lithium CR battery, concerning the number of the battery according to the year of your Volkswagen Polo 5, it can be either the 2016, the 2032 or the 1620.

    If you need more guides on the Volkswagen Polo 5, go to our Volkswagen Polo 5 category.