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 problem that may seem insignificant but that rather quickly turns out to be bothering if it is not fixed. In truth, we are going to support you to know how to replace my BMW 5 Series card battery? The benefit of cards is that they work hands-free, but without electric power your card will be ineffective. That’s why, first, we will see how the card works, then how to change the battery of the card of your BMW 5 Series?, and, at last, which is the battery that matches to the card of your BMW 5 Series.

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How does the key card of your BMW 5 Series function?

Before we teach you how to change the batteries in your BMW 5 Series hands-free card, we will quickly describe how it works and the benefits it will give you. Who hasn’t had problems locating their car keys in their bag or pocket? For a few years now, car manufacturers have been looking into this issue. With the advent of new wireless solutions, key problems will quickly become a thing of the history! We are going to reveal 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 intercommunicate.
  • It allows you to open the BMW 5 Series simply by passing your hand in front of the door or by pulling the handle when the card is in close proximity to your car
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  • There are two versions of key card, one that allows 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 BMW 5 Series if you run out of battery power.

How do I replace the card battery of my BMW 5 Series?

We will now go forward to the part that interests you the most in this content, how to change the key card battery of an BMW 5 Series? Effectively this wireless technology requires energy to function. 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 integrated 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 BMW 5 Series:

  • 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 slim 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 automatically, on others you will have to press the button 4 times to reactivate it.
  • Which type of battery to purchase for the card of my BMW 5 Series?

    Finally, to conclude our article content we will support you to select the card battery type of your BMW 5 Series. They all look very equivalent and it is not always easy to select 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 5 Series, it can be either the 2016, the 2032 or the 1620.

    To get more tips on the BMW 5 Series, take a look at the BMW 5 Series category.