We have dedicated this website to help you solve the little problems you can face with your car . Today, we are going to take a look at a concern that may seem insignificant but that promptly turns out to be bothering if it is not repaired. In fact, we are going to support you to know how to replace my Bmw Serie 3 card battery? The benefit 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 Bmw Serie 3?, and, at last, which is the battery that matches to the card of your Bmw Serie 3.

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How does the key card of your Bmw Serie 3 work?

Before we demonstrate how to change the batteries in your Bmw Serie 3 hands-free card, we will promptly summarize how it works and the benefits it will give you. Who hasn’t had trouble locating their car keys in their bag or pocket? For a few years now, car producers have been looking into this problem. With the advent of new wireless technologies, key problems will promptly become a thing of the past! We are going to demonstrate 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 motor vehicle and on the card so that both can connect.
  • It allows you to open the Bmw Serie 3 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 allows to open and close like a centralized lock with the support 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 Bmw Serie 3 if you run out of battery power.

How do I change the card battery of my Bmw Serie 3?

We will now move on to the part that interests you the most in this article content, how to change the key card battery of an Bmw Serie 3? Effectively this wireless technology needs energy to work. When the batteries of your card are lifeless you will not be able to wireless open the doors of your motor vehicle, but with the help of the included physical key you can do it by hand. Relating to 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 Bmw Serie 3:

  • Press the button at the bottom and pull out the emergency key simultaneously.
  • 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 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 instantly, on others you will have to press the button 4 times to reactivate it.
  • Which type of battery to buy for the card of my Bmw Serie 3?

    At last, to conclude our article we will support you to choose the card battery type of your Bmw Serie 3. They all look very similar and it is not always easy to choose the suitable one. It is a button size 3V Lithium CR battery, regarding the number of the battery according to the year of your Bmw Serie 3, it can be either the 2016, the 2032 or the 1620.

    To get more tips on the Bmw Serie 3, take a look at the Bmw Serie 3 category.