Can't open or lock your car? Can't start the engine? Your Mercedes key fob does not respond to your actions? The most common reason why the key fob does not respond to button presses is a dead battery in the remote control. Don't know how to change the battery in the remote control? We invite you to watch a video with which you can learn how to use Mercedes-Benz cars yourself.
Here is a detailed video clip with which you can find out how to change the battery in four types:
Depending on the type of remote control used, the required number of batteries varies. So the first key (Type 1 - triangle panic button) uses only one CR 2025 battery.
The second key (Type 2 - round panic button) has two CR 2025 batteries.
The third key fob (Type 3) also has two CR 2025 batteries.
The fourth key, which is also easy to replace the battery yourself, also has two 2025CR batteries.
Please note that for long service life of CR 2025 batteries and other similar batteries, purchase only lithium batteries that have a long service life. Attention!!! There is currently a wide range of coin-type batteries on the market.
Unfortunately, most cheap batteries do not last long due to poor quality batteries that do not hold a charge.
Therefore, when choosing a battery for your car remote control, choose only expensive batteries from well-known brands.
The key, which is used for Mercedes cars, as well as other luxury cars, is currently the best guarantee against theft. Compared to an immobilizer, the action of such keys is not limited to a few centimeters around the perimeter of the ignition switch, and this is an additional convenience for the car owner.
But, like all autonomous devices, the battery in this key must be replaced periodically. Replacing the battery on a Mercedes key not difficult, but you need to know some of the nuances of this work.
1. First, locate the battery compartment on your key. It is worth noting that some Mercedes models do not allow you to replace the battery yourself; as a result, such keys do not have a battery compartment. Such keys can be purchased from a dealer for a very decent amount. But even in these keys you can change the battery yourself and much cheaper.
2. If your key has a battery compartment, then everything is much simpler. Open the cover and take out the battery. Just be careful not to drop the battery, as it is small and it will be difficult to find it later. You need to look at the battery label or take it with you to a specialized store to buy a new one.
3. Now let's talk about how to replace the battery in a Mercedes key if the key does not have a standard battery compartment. Look at how the two planes of the device are attached and connected. If you find small screws, unscrew them using an appropriate screwdriver.
In the worst case scenario, the key can be fixed using ordinary plastic latches, which cannot be opened without damage. Therefore, if you want to open such a key with a knife, remember that it will then need to be glued together. Therefore, replacing the battery in a Mercedes key of this type is not initially provided for, but is completely changed by the manufacturer. But our people are not used to overpaying, since the cost of such a key is from 3 to 5 thousand rubles, and the price of a battery is much cheaper.
4. Mercedes - replacing the battery in the key with a new one. Most likely, after installing a new battery, your key will lose contact with the car and stop working. This means that it must be “registered”. Here it is necessary to note the fact that it will not be possible to program the key without another working smart device.
To restore the connection between the car and the key, insert another working smart phone into the lock. Next, turn it to position 2 for 2-3 seconds and return it to its original position. We take the key out of the lock and press unlock, then the lock button three times. Then we move on to programming the key into which we installed a new battery. We repeat the same procedure with the unlock and lock buttons as with the working key.
To finish programming, insert a new activated key, turn on the ignition for a few seconds and turn it off by removing the key from the lock. Now you know how to change the battery in a Mercedes key, as you can see, there is nothing complicated
Р'озможно, неправильные RїР°СЂР°РјРµС‚СЂС‹ соединения или РЎР ЈР БД РЅРµ запущена
The key, which is used for Mercedes cars, as well as other luxury cars, is currently the best guarantee against theft. Compared to an immobilizer, the action of such keys is not limited to a few centimeters around the perimeter of the ignition switch, and this is an additional convenience for the car owner.
But, like all autonomous devices, the battery in this key must be replaced periodically. Replacing the battery on a Mercedes key not difficult, but you need to know some of the nuances of this work.
1. First, locate the battery compartment on your key. It is worth noting that some Mercedes models do not allow you to replace the battery yourself; as a result, such keys do not have a battery compartment. Such keys can be purchased from a dealer for a very decent amount. But even in these keys you can change the battery yourself and much cheaper.
2. If your key has a battery compartment, then everything is much simpler. Open the cover and take out the battery. Just be careful not to drop the battery, as it is small and it will be difficult to find it later. You need to look at the battery label or take it with you to a specialized store to buy a new one.
3. Now let's talk about how to replace the battery in a Mercedes key if the key does not have a standard battery compartment. Look at how the two planes of the device are attached and connected. If you find small screws, unscrew them using an appropriate screwdriver.
In the worst case scenario, the key can be fixed using ordinary plastic latches, which cannot be opened without damage. Therefore, if you want to open such a key with a knife, remember that it will then need to be glued together. Therefore, replacing the battery in a Mercedes key of this type is not initially provided for, but is completely changed by the manufacturer. But our people are not used to overpaying, since the cost of such a key is from 3 to 5 thousand rubles, and the price of a battery is much cheaper.
4. Mercedes - replacing the battery in the key with a new one. Most likely, after installing a new battery, your key will lose contact with the car and stop working. This means that it must be “registered”. Here it is necessary to note the fact that it will not be possible to program the key without another working smart device.
To restore the connection between the car and the key, insert another working smart phone into the lock. Next, turn it to position 2 for 2-3 seconds and return it to its original position. We take the key out of the lock and press unlock, then the lock button three times. Then we move on to programming the key into which we installed a new battery. We repeat the same procedure with the unlock and lock buttons as with the working key.
To finish programming, insert a new activated key, turn on the ignition for a few seconds and turn it off by removing the key from the lock. Now you know how to change the battery in a Mercedes key, as you can see, there is nothing complicated
During the operation of cars, their owners sometimes have a question about how to change the battery in a Mercedes and Volkswagen key. People begin to think about this when problems with opening car doors begin to bother them or after they are unable to start the engine. Modern cars are equipped with electronic units called immobilizers, and they only work in pairs with the same “smart” key.
How to change the battery in a Mercedes and Volkswagen key We will tell you in this article, we hope that it will be useful for owners of other car models, since there are many similarities in these systems. A dead battery creates many problems for owners, so it is advisable to learn how to replace it yourself, especially since you don’t need any special difficulties or the presence of special devices and tools.
Why is it needed?
A few words have already been said earlier that modern cars are equipped with electronic systems for controlling important engine systems and also perform the functions of a security system. When purchasing a new car, when the engine is started for the first time, the electronic device is paired with the control unit, and communication is carried out between them through the matching code of both devices.
When for some reason the code does not match the immobilizer code, access to the vehicle interior and starting the engine becomes impossible. There can be many such reasons, one of them could be a dead battery. The car's operating instructions recommend that car owners contact service centers to carry out this procedure, but it is quite possible to replace the battery yourself.
A few words about varieties
Every year more and more advanced cars appear, and with them comes the modernization of car security systems. Therefore, there are several types of electronic keys. Today there are such options for such products:
- Chip devices;
- Separate type chip keys;
- Chips installed in blades;
- Chip cards;
- Wireless keys with chips.
Separate chip keys They are rightfully considered the oldest products and are no longer produced, but quite a lot of them are still in use. They consist of two products: a key and a keychain for it. To be able to start the engine, you need to combine the key fob with a special reading device. Once the codes match, the systems are unlocked and the engine can be started.
Chips in keys Today they are the most common products and continue to be produced by many machine manufacturers. Most of all, folding chip devices are produced. The encoding element is installed on the blade of the product, and all electronics, along with batteries, are installed in a plastic case. When purchasing a new car, you are issued two keys.
Today, cards with chips have also found their use, as well as keys that connect the owner with the car via radio communication. Problems with their power supply will make it impossible for their owners to drive a car.
We replace the battery for Volkswagen
To carry out the replacement, you need to prepare a new lithium battery, and you will also need a small thin slotted screwdriver. On the side opposite the switches, insert a screwdriver into the place where the housing halves are connected. The lock there is carefully moved towards the metal blade. The case is carefully opened and the plastic locks on both sides are unlocked.
After this, you can remove the battery, but be careful, as there may be two of them. When installing new batteries, you must strictly observe the polarity. Reassemble the housing in the reverse order and if everything is done correctly, the indicator light will be visible.
About replacing Mercedes key batteries
You will need to purchase two batteries CR2025, after which you need to move the latch from its place to remove the blade. After this, you need to press the gray button with the same blade, and use your fingernail to remove the plate with the batteries.
Attentively look and remember the polarity of the battery connection so that you can then correctly install the new element.
Assembly is carried out in reverse order. The power supply must be changed as quickly as possible, otherwise the electronic control unit will have to be programmed again.
It is impossible to explain all the intricacies of such an operation in a short article. We tried to convey to you how to change the battery in a Mercedes and Volkswagen key. Try to carry out this procedure in a timely manner to avoid problems in the future.
The bodies of the fish are different. The parsing scheme for these keys is almost identical.
Let's start with option number 2 (short fish)
There are two batteries inside - CR2025.
We move the latch in the direction of the arrow and pull out the iron analog key.
Now, using an iron rod or any thin screwdriver, you need to press the latch inside and hold it.
While holding the latch, pull out the upper part of the key, which will easily separate from it.
We take it out of the case. You can change the batteries and put them back in for future use.
Now (if necessary) to pull out the microcircuit you need to pull or hook the white wide pad with something and pull. It is best done with tongs.
Carefully- the white pad may pop out and fly away.
All details.
Option numbered - 3 (chrome fish)
There are two options for chrome keys - with and without a top cover.In order to open this cover, we take out the iron feather of the key.
We insert the end of the key into the groove in which the lid latch is located. Click on it.
The lid will open itself without effort (bounce off).
Under it we see a battery that needs to be changed. There is one battery.
Available without lid You need to pull out the insides that contain the batteries.
We take out the iron part.
Press the latch and simultaneously pull it out of the case, it will be hard going.
Turn it over and see - 2 batteries that can be changed.
Put everything back together and you can use it. Ready.
Option - 1 (long fish)
For this option, we do everything by analogy with the small key (2).
Components.
This instruction was used: 8910 once.
Thanks to technological progress, many everyday things are becoming more and more convenient. However, sometimes technical innovations have the opposite effect. For example, in cases where your Mercedes electronic key stops working due to the fact that its batteries are dead. But don’t panic, this problem can be easily and quickly solved on your own. If you don't know how to change the battery in a Mercedes key, this article is for you. The only thing you need is a couple of CR-2025 coin-cell batteries and a little sleight of hand.
How to open a Mercedes key?
The batteries are located in the body of the electronic key fob, so the first thing you need to understand is how to disassemble a Mercedes key. The type of electronic key for Mercedes cars is popularly called “fish” because of its shape. On the “head” side of this fish there is a built-in mechanical key that is incredibly useful in this situation. Firstly, he will help you open the car lock and get spare batteries from there (and you definitely need to have them, otherwise in such a situation you simply will not be able to leave). Secondly, with its help we will disassemble the remote control housing.
- Move the safety to the opposite side and remove the metal key from the fish body.
- Insert the long side of the key into the hole on the body and push it through. You will feel the mechanism of the button, you need to press it.
- When you press the button, the battery compartment cover will open.
You disassembled the electronic key and saw old CR-2025 batteries. There may be one or two of them, depending on what model of Mercedes key fob you have. Next is replacing the battery in the Mercedes key.
- Remove the batteries and replace them with new ones, paying attention to the battery poles.
Done, now you can start the car without any problems and continue driving it until the next time your key batteries run out. But thanks to this simple guide, you now know how to replace the battery in a Mercedes key, and this problem is no longer a problem for you. Most importantly, do not forget to have a spare set of batteries with you.
Replacing the battery in a Mercedes key can be a big problem if you don’t know the nuances of the process. After all, some owners of M Mercedes' keys are brought to an unusable state by incorrect actions. The question arises: “How
replace the battery in a Mercedes keyand do it correctly?" Here are instructions for correct replacement.
So, the following keys are found:
1. Flow valve
2. Big fish
3. Little fish
4. Chrome plated first generation
5. Chrome plated second generation
All keys except Chrome plated second generation, have two batteries. In all of them, except the switch-type one, you can take out the sting and use the sting to open the battery compartment.
How to replace batteries from a switch key
Check that when you press the button, the red LED on the key does not light up or lights up rarely. Next, you need to snap out the tip, then use a sharp object to pry off the battery compartment cover and shake out the old batteries. Then insert new batteries into the sockets and close the lid.
Replacing batteries in the Big Fish key
First, we check whether the red LED lights up when the button is pressed. If it does not light up, or lights up rarely, remove the tip from the end of the key by prying it with your nails. Then we press the sting on the groove of the battery compartment, while simultaneously pulling it out of the socket. After which the battery in the key is changed: we take out the batteries, replace them with new ones, insert the compartment and the tip into place.
Replacing batteries in the Little Fish key
If the red LED does not work, we check this by pressing the button, then pry the tip at the end of the key with our nails and pull it out. Then we insert the long part of the tip into the clip of the battery compartment, at the same time we pry the latch of the latter with our fingernail and pull it out. Batteries are located on both sides of the retractable battery compartment. All that remains is to replace them and insert the compartment, and then the sting, back.
Replacing batteries in a first generation Chrome key
You must first check the functionality of the red LED using the button. Then, if it does not ignite, take out the tip, insert it into the battery compartment latch at the end of the key and press down. Pull out the battery compartment, then remove the batteries from the contacts holding them and replace them. Then insert the battery compartment into place, and then the tip.
How to change the battery in a Mercedes gl, gls, glc, glk, w166, 221 key
Replacing the battery in the Mercedes gl, glk key is done as follows. You must first test the functionality of the red LED by pressing the button. Next, if it does not light up, pull out the tip of the key, then pry it off the battery compartment cover, shake out the battery and insert a new one in its place. After this, snap the battery compartment cover and return the key blade to its place. For example, the battery in a 166 Mercedes key does not fit older generation keys. CR2032 is thick enough, you need CR2025 size.
How to replace the battery in your keychain | Mercedes
Replacing the battery in a Mercedes car key.
Can't open or close your own car? Can't start the engine? Your key Mercedes key fob does not respond to your actions? A common reason that the key fob does not respond to button presses is the reduction battery in the remote control. I do not understand how change Is there a battery in the remote control? We invite you to watch the video to help you learn how without the help of others change car battery keychain Mercedes-Benz
Here's a detailed video to help you see how they change battery in 4 types of car keys Mercedes:
Depending on the type of remote control you use, the number of batteries required varies. So first key(Triangle Panic Button Type) uses only one CR 2025 battery.
second key(Type 2. Round Panic Button) has two CR 2025 batteries.
Third keychain key(Type 3) also has two CR 2025 batteries.
fourth key, which is also easy to replace, also has two 2025CR batteries.
Please note that for long life of CR 2025 and similar batteries, purchase only long life lithium batteries. I like to change the battery history in a Mercedes key, how to change the battery. Warning. There is currently a wide range of tablet batteries available on the market.
Unfortunately, most cheap batteries do not last long due to the poor quality of the non-rechargeable battery.
Therefore, when choosing a car battery for remote control, choose only expensive batteries from well-known brands.
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