We have dedicated this website to help you solve the little problems you can face with your car . In this article, we are going to take a look at a problem that may seem insignificant but that quickly turns out to be bothering if it is not fixed. In fact, we are going to help you to know how to replace my Bmw Serie 7 card battery? The advantage of cards is that they work hands-free, but without electricity 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 7?, and, at last, which is the battery that matches to the card of your Bmw Serie 7.

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How does the key card of your Bmw Serie 7 operate?

Before we teach you how to change the batteries in your Bmw Serie 7 hands-free card, we will promptly summarize 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 producers have been looking into this difficulty. With the advent of new wireless systems, key problems will promptly become a thing of the history! We are going to show 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 motor vehicle and on the card so that both can communicate.
  • It allows you to open the Bmw Serie 7 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 versions of key card, one that allows to open and close like a centralized lock 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 7 if you run out of battery power.

How do I change the card battery of my Bmw Serie 7?

We will in this part go forward to the part that interests you the most in this content, how to change the key card battery of an Bmw Serie 7? Effectively this wireless technology necessitates energy to operate. 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 physically. 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 Bmw Serie 7:

  • 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 slim 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 automatically, 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 7?

    At last, to finish our content page we will help you to select the card battery type of your Bmw Serie 7. They all look very identical and it is not always easy to select the good one. It is a button size 3V Lithium CR battery, concerning the number of the battery according to the year of your Bmw Serie 7, it can be either the 2016, the 2032 or the 1620.

    Whenever you have any further questions about the Bmw Serie 7, do not hesitate to consult our Bmw Serie 7 category.