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 discover a problem that may seem minor but that promptly turns out to be bothering if it is not fixed. In fact, we are going to support you to know how to replace my Mercedes Benz C Class 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 functions, then how to replace the battery of the card of your Mercedes Benz C Class?, and, finally, which is the battery that corresponds to the card of your Mercedes Benz C Class.

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How does the key card of your Mercedes Benz C Class operate?

Before we teach you how to replace the batteries in your Mercedes Benz C Class hands-free card, we will quickly explain how it works and the benefits it will offer you. Who hasn’t had problems finding their car keys in their bag or pocket? For a few years now, car manufacturers have been looking into this problem. With the advent of new wireless solutions, key problems will quickly become a thing of the history! We are going to reveal 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 intercommunicate.
  • It allows you to open the Mercedes Benz C Class simply by passing your hand in front of the door or by pulling the handle when the card is near your car
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  • There are two versions of key card, one that allows to open and close like a centralized locking mechanism with the support of a press 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 Benz C Class if you run out of battery power.

How do I replace the card battery of my Mercedes Benz C Class?

We will now move on to the part that interests you the most in this content, how to replace the key card battery of an Mercedes Benz C Class? Effectively this wireless technology requires 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 by hand. Concerning the ignition, all you have to do is place 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 Mercedes Benz C Class:

  • Press the button at the bottom and pull out the emergency key concurrently.
  • 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 remove the used 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 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 Mercedes Benz C Class?

    Finally, to end our article we will support you to choose the card battery type of your Mercedes Benz C Class. They all look very equivalent and it is not always easy to choose the good one. It is a button size 3V Lithium CR battery, relating to the number of the battery according to the year of your Mercedes Benz C Class, it can be either the 2016, the 2032 or the 1620.

    If you wish more tutorials on the Mercedes Benz C Class, go to our Mercedes Benz C Class category.