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 insignificant but that fairly quickly turns out to be annoying if it is not corrected. In truth, we are going to help you to know how to replace my Bmw Serie 3 E93 card battery? The benefit of cards is that they work hands-free, but without power your card will be useless. That’s why, first, we will see how the card works, then how to change the battery of the card of your Bmw Serie 3 E93?, and, finally, which is the battery that corresponds to the card of your Bmw Serie 3 E93.

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How does the key card of your Bmw Serie 3 E93 operate?

Before we explain how to change the batteries in your Bmw Serie 3 E93 hands-free card, we will quickly describe 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 producers have been looking into this problem. With the advent of new wireless systems, key problems will quickly 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 car and on the card so that both can communicate.
  • It permits you to open the Bmw Serie 3 E93 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 versions 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 Bmw Serie 3 E93 if you run out of battery power.

How do I change the card battery of my Bmw Serie 3 E93?

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 E93? Effectively this wireless technology needs energy to operate. When the batteries of your card are dead 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 manually. Concerning the ignition, all you have to do is insert the card in the slot included 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 E93:

  • 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 take out 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 category of battery to use for the card of my Bmw Serie 3 E93?

    At last, to conclude our content page we will help you to choose the card battery type of your Bmw Serie 3 E93. They all look very similar and it is not always easy to choose the good one. It is a button size 3V Lithium CR battery, relating to the number of the battery according to the year of your Bmw Serie 3 E93, it can be either the 2016, the 2032 or the 1620.

    If you wish more guides on the Bmw Serie 3 E93, go to our Bmw Serie 3 E93 category.