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 minor but that promptly turns out to be annoying if it is not repaired. In truth, we are going to support you to know how to replace my smart forfour card battery? The benefit 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 smart forfour?, and, at last, which is the battery that matches to the card of your smart forfour.
How does the key card of your smart forfour function?
Before we describe how to replace the batteries in your smart forfour hands-free card, we will fairly quickly describe how it works and the benefits it will offer you. Who hasn’t had trouble finding 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 solutions, key problems will fairly quickly become a thing of the past! We are going to demonstrate 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 communicate.
- It permits you to open the smart forfour 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 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 smart forfour if you run out of battery power.
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How do I change the card battery of my smart forfour?
We will in this part go forward to the part that interests you the most in this article, how to replace the key card battery of an smart forfour? Effectively this wireless technology needs energy to function. When the batteries of your card are flat 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 smart forfour:
- 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 thin thing to take out the used battery from the card
- Install the new battery in the slot provided.
- Close the card.
- On some models it will work immediately, 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 smart forfour?
At last, to finish our short post we will support you to select the card battery type of your smart forfour. They all look very equivalent and it is not always easy to select the correct one. It is a button size 3V Lithium CR battery, regarding the number of the battery according to the year of your smart forfour, it can be either the 2016, the 2032 or the 1620.
If you wish more tutorials on the smart forfour, go to our smart forfour category.
