We have dedicated this website to help you solve the little problems you can face with your car . In the present day, we are going to check out a concern that may seem unimportant but that promptly turns out to be annoying if it is not corrected. In fact, we are going to support you to know how to replace my BMW 7 Series card battery? The advantage 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 works, then how to replace the battery of the card of your BMW 7 Series?, and, finally, which is the battery that matches to the card of your BMW 7 Series.
How does the key card of your BMW 7 Series function?
Before we demonstrate how to replace the batteries in your BMW 7 Series hands-free card, we will promptly 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 producers have been looking into this problem. With the advent of new wireless solutions, key problems will promptly become a thing of the history! We are going to present 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 connect.
- It permits you to open the BMW 7 Series simply by passing your hand in front of the door or by pulling the handle when the card is near your car
- There are two versions of key card, one that permits to open and close like a centralized locking mechanism 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 7 Series if you run out of battery power.
.
How do I replace the card battery of my BMW 7 Series?
We will in this part move on to the part that interests you the most in this content, how to replace the key card battery of an BMW 7 Series? Effectively this wireless technology necessitates energy to function. When the batteries of your card are lifeless you will not be able to wireless open the doors of your car, but with the help of the integrated 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 7 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 thin thing to take out the used battery from the card
- Put in 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 kind of of battery to buy for the card of my BMW 7 Series?
Finally, to end our article content we will support you to choose the card battery type of your BMW 7 Series. 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, relating to the number of the battery according to the year of your BMW 7 Series, it can be either the 2016, the 2032 or the 1620.
If you want more guides on the BMW 7 Series, go to our BMW 7 Series category.
