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 see a concern that may seem insignificant but that promptly turns out to be bothering if it is not fixed. Indeed, we are going to support you to know how to replace my BMW 4 Series card battery? The advantage of cards is that they work hands-free, but with no electricity your card will be useless. That’s why, first, we will see how the card works, then how to replace the battery of the card of your BMW 4 Series?, and, at last, which is the battery that matches to the card of your BMW 4 Series.
How does the key card of your BMW 4 Series work?
Before we describe how to replace the batteries in your BMW 4 Series hands-free card, we will promptly summarize how it works and the benefits it will offer you. Who hasn’t had problem locating their car keys in their bag or pocket? For a few years now, car manufacturers have been looking into this difficulty. With the advent of new wireless technologies, key problems will promptly become a thing of the history! We are going to reveal 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 connect.
- It allows you to open the BMW 4 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
- There are two versions 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 4 Series if you run out of battery power.
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How do I replace the card battery of my BMW 4 Series?
We will now move on to the part that interests you the most in this document, how to replace the key card battery of an BMW 4 Series? Effectively this wireless technology requires energy to work. When the batteries of your card are dead 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 4 Series:
- Press the button at the bottom and pull out the emergency key while doing so.
- 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 take out the flat 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.
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Which type of battery to buy for the card of my BMW 4 Series?
At last, to conclude our article we will support you to select the card battery type of your BMW 4 Series. They all look very equivalent and it is not always easy to select the suitable one. It is a button size 3V Lithium CR battery, concerning the number of the battery according to the year of your BMW 4 Series, it can be either the 2016, the 2032 or the 1620.
To get more tips on the BMW 4 Series, take a look at the BMW 4 Series category.
