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 take a look at a problem that may seem minor but that fairly quickly turns out to be annoying if it is not corrected. In truth, we are going to support you to know how to replace my Bmw Serie 3 E90 card battery? The advantage of cards is that they work hands-free, but with no 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 Serie 3 E90?, and, finally, which is the battery that matches to the card of your Bmw Serie 3 E90.
How does the key card of your Bmw Serie 3 E90 function?
Before we teach you how to change the batteries in your Bmw Serie 3 E90 hands-free card, we will fairly quickly summarize how it works and the benefits it will give you. Who hasn’t had difficulty finding 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 solutions, key problems will fairly quickly become a thing of the history! We are going to show 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 permits you to open the Bmw Serie 3 E90 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 types of key card, one that permits 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 Serie 3 E90 if you run out of battery power.
.
How do I change the card battery of my Bmw Serie 3 E90?
We will in this part go forward to the part that interests you the most in this article content, how to change the key card battery of an Bmw Serie 3 E90? 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 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 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 3 E90:
- 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 take off 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.
.
Which type of battery to buy for the card of my Bmw Serie 3 E90?
Finally, to end our article we will support you to choose the card battery type of your Bmw Serie 3 E90. They all look very identical and it is not always easy to choose the correct one. It is a button size 3V Lithium CR battery, concerning the number of the battery according to the year of your Bmw Serie 3 E90, it can be either the 2016, the 2032 or the 1620.
If you want more tutorials on the Bmw Serie 3 E90, go to our Bmw Serie 3 E90 category.
