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 look at an issue that may seem unimportant but that fairly quickly turns out to be bothering if it is not corrected. In truth, we are going to help you to know how to replace my Mercedes Viano 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 functions, then how to replace the battery of the card of your Mercedes Viano?, and, at last, which is the battery that corresponds to the card of your Mercedes Viano.

replace-key-card-battery-mercedes-viano

How does the key card of your Mercedes Viano work?

Before we teach you how to replace the batteries in your Mercedes Viano hands-free card, we will promptly explain how it works and the benefits it will give you. Who hasn’t had difficulties locating their car keys in their bag or pocket? For a few years now, car manufacturers have been looking into this issue. With the advent of new wireless technologies, key problems will promptly become a thing of the history! 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 connect.
  • It enables you to open the Mercedes Viano 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 types of key card, one that enables to open and close like a centralized lock with the help 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 Viano if you run out of battery power.

How do I change the card battery of my Mercedes Viano?

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 Viano? Effectively this wireless technology needs energy to work. 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 included physical key you can do it physically. Regarding the ignition, all you have to do is insert 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 Viano:

  • Press the button at the bottom and pull out the emergency key while doing so.
  • 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
  • .

  • 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 category of battery to purchase for the card of my Mercedes Viano?

    Finally, to conclude our article content we will help you to select the card battery type of your Mercedes Viano. They all look very identical and it is not always easy to select the right one. It is a button size 3V Lithium CR battery, relating to the number of the battery according to the year of your Mercedes Viano, it can be either the 2016, the 2032 or the 1620.

    If you need more tutorials on the Mercedes Viano, go to our Mercedes Viano category.