We are used to accompanying you in the small problems that go with the use of your car. In this article, we are going to discover a concern that may seem insignificant but that quickly turns out to be bothering if it is not corrected. Indeed, we are going to support you to know how to replace my Mercedes Benz E Class card battery? The benefit of cards is that they work hands-free, but without electric power your card will be useless. That’s why, first, we will see how the card functions, then how to change the battery of the card of your Mercedes Benz E Class?, and, finally, which is the battery that matches to the card of your Mercedes Benz E Class.
How does the key card of your Mercedes Benz E Class work?
Before we demonstrate how to change the batteries in your Mercedes Benz E Class hands-free card, we will fairly quickly describe how it works and the benefits it will offer you. Who hasn’t had issues locating their car keys in their bag or pocket? For a few years now, car makers have been looking into this issue. With the advent of new wireless solutions, key problems will fairly quickly 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 motor vehicle and on the card so that both can communicate.
- It permits you to open the Mercedes Benz E Class simply by passing your hand in front of the door or by pulling the handle when the card is near your car
- There are two versions of key card, one that permits 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 E Class if you run out of battery power.
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How do I change the card battery of my Mercedes Benz E Class?
We will now move on to the part that interests you the most in this document, how to change the key card battery of an Mercedes Benz E Class? Effectively this wireless technology requires energy to work. When the batteries of your card are flat you will not be able to wireless open the doors of your motor vehicle, but with the help of the integrated physical key you can do it physically. 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 E 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 slim object to take off the used battery from the card
- 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.
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Which type of battery to purchase for the card of my Mercedes Benz E Class?
Finally, to end our article content we will support you to choose the card battery type of your Mercedes Benz E Class. They all look very equivalent and it is not always easy to choose the suitable 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 E Class, it can be either the 2016, the 2032 or the 1620.
To discover more tips on the Mercedes Benz E Class, take a look at the Mercedes Benz E Class category.
