We are used to accompanying you in the small problems that go with the use of your car. In the present day, we are going to check out a problem that may seem minor but that rather quickly turns out to be frustrating if it is not corrected. Indeed, we are going to support you to know how to replace my Mercedes C class card battery? The advantage of cards is that they work hands-free, but without power your card will be useless. That’s why, first, we will see how the card works, then how to change the battery of the card of your Mercedes C class?, and, finally, which is the battery that matches to the card of your Mercedes C class.

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How does the key card of your Mercedes C class operate?

Before we teach you how to change the batteries in your Mercedes C class hands-free card, we will promptly illustrate how it works and the benefits it will provide you. Who hasn’t had difficulties locating their car keys in their bag or pocket? For a few years now, car suppliers have been looking into this trouble. With the advent of new wireless solutions, key problems will promptly 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 communicate.
  • It enables you to open the Mercedes C class simply by passing your hand in front of the door or by pulling the handle when the card is close to your car
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  • There are two types of key card, one that enables 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 Mercedes C class if you run out of battery power.

How do I change the card battery of my Mercedes C class?

We will now move on to the part that interests you the most in this content, how to change the key card battery of an Mercedes C class? Effectively this wireless technology necessitates energy to operate. When the batteries of your card are dead 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 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 C class:

  • 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 object to take off the flat battery from the card
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  • 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.
  • Which kind of of battery to use for the card of my Mercedes C class?

    Finally, to end our short post we will support you to choose the card battery type of your Mercedes C class. They all look very similar 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 C class, it can be either the 2016, the 2032 or the 1620.

    To discover more tips on the Mercedes C class, take a look at the Mercedes C class category.