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 discover a problem that may seem minor but that quickly turns out to be frustrating if it is not repaired. In fact, we are going to support you to know how to replace my Mercedes Classe S card battery? The benefit 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 functions, then how to replace the battery of the card of your Mercedes Classe S?, and, at last, which is the battery that matches to the card of your Mercedes Classe S.
How does the key card of your Mercedes Classe S operate?
Before we teach you how to replace the batteries in your Mercedes Classe S hands-free card, we will fairly quickly summarize how it works and the benefits it will provide you. Who hasn’t had issues finding their car keys in their bag or pocket? For a few years now, car producers have been looking into this issue. With the advent of new wireless technologies, key problems will fairly quickly become a thing of the past! 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 car and on the card so that both can connect.
- It enables you to open the Mercedes Classe S 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 enables to open and close like a centralized locking mechanism 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 Mercedes Classe S if you run out of battery power.
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How do I replace the card battery of my Mercedes Classe S?
We will now go forward to the part that interests you the most in this content, how to replace the key card battery of an Mercedes Classe S? Effectively this wireless technology needs energy to operate. 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 physically. Concerning the ignition, all you have to do is insert the card in the slot included 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 Mercedes Classe S:
- 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 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 immediately, on others you will have to press the button 4 times to reactivate it.
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Which category of battery to use for the card of my Mercedes Classe S?
At last, to conclude our content page we will support you to choose the card battery type of your Mercedes Classe S. They all look very identical and it is not always easy to choose the right one. It is a button size 3V Lithium CR battery, regarding the number of the battery according to the year of your Mercedes Classe S, it can be either the 2016, the 2032 or the 1620.
If you wish more tutorials on the Mercedes Classe S, go to our Mercedes Classe S category.
