We have dedicated this website to help you solve the little problems you can face with your car . Today, we are going to see a problem that may seem unimportant but that promptly turns out to be bothering if it is not repaired. In truth, we are going to help you to know how to replace my Mercedes Benz CLA Class card battery? The benefit of cards is that they work hands-free, but without electric power 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 Mercedes Benz CLA Class?, and, finally, which is the battery that corresponds to the card of your Mercedes Benz CLA Class.

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

Before we describe how to replace the batteries in your Mercedes Benz CLA Class hands-free card, we will promptly describe how it works and the benefits it will provide you. Who hasn’t had problem finding their car keys in their bag or pocket? For a few years now, car manufacturers have been looking into this trouble. With the advent of new wireless technologies, key problems will promptly become a thing of the past! We are going to reveal you the product 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 Benz CLA 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 versions of key card, one that enables to open and close like a centralized locking mechanism with the help 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 CLA Class if you run out of battery power.

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

We will now move on to the part that interests you the most in this document, how to replace the key card battery of an Mercedes Benz CLA Class? Effectively this wireless technology requires energy to operate. When the batteries of your card are lifeless 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. Regarding the ignition, all you have to do is place 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 Benz CLA Class:

  • 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 object to take off 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 automatically, on others you will have to press the button 4 times to reactivate it.
  • Which category of battery to use for the card of my Mercedes Benz CLA Class?

    Finally, to finish our short post we will help you to select the card battery type of your Mercedes Benz CLA Class. They all look very similar and it is not always easy to select the suitable one. It is a button size 3V Lithium CR battery, concerning the number of the battery according to the year of your Mercedes Benz CLA Class, it can be either the 2016, the 2032 or the 1620.

    To find more tips on the Mercedes Benz CLA Class, take a look at the Mercedes Benz CLA Class category.