Paying attention to your car is fundamental in the present day, in truth, if you do not do the minimal maintenance of it, or if you do not consider signals of abnormality, you strongly risk to see your motor vehicle withering away. This is precisely the theme we are going to speak about in this article, one of the indications that most disturbs car owners is the key indicator light on Mercedes Classe A 3 dash . To try to help you analyze this light, first we will see what this key light on Mercedes Classe A 3 corresponds to, then in a second what to do if the key light is lit on Mercedes Classe A 3? .

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What does the key light on Mercedes Classe A 3 mean?

So we start our article with the meaning of a key indicator light on Mercedes Classe A 3 dash , it may be that in addition to the key you have the logo of a car next to it. Take note that the main function of this light is to tell you that it’s time to service your Mercedes Classe A 3 , however, this light can also have other meanings, even dozens of them. To discover the source of this problem the best solution will be to run your Mercedes Classe A 3 through the diagnostic too l, if you don’t know how to achieve this procedure, you can locate all the required information to carry out this work in our dedicated article. We will try in the following list to give you the maximum information on the main alert information it can send you:

  • An oil change conducted without resetting the indicator: If you have done your oil change by yourself, it is probably that you have not thought of resetting the oil change indicator of your Mercedes Classe A 3, here is the procedure to achieve this small reset of the key light of your car.
  • Oil level problem: It is possible that the oil level sensor is revealing that the oil level is too low.
  • EGR Valve: Another opportunity is that the key light on your Mercedes Classe A 3 is on because your EGR valve is dirty, very often the case if you are driving short distances or not pushing the gears of your car.
  • Glow plugs: Finally, the last and most common trigger of an orange wrench light on Mercedes Classe A 3 is that your glow plugs are getting tired.

What if the orange key light on Mercedes Classe A 3 is on?

We are now going to move on to the second part of our article and try to present you the solutions to each of the complications pointed out in the previous part and consequently what to do if I discover the wrench light on your Mercedes Classe A 3? To do this, we will take turns answering each of the complications you may face:

  • Reset the drain indicator light: As we mentioned before, a very easy reset of the indicator light on your Mercedes Classe A 3 will be enough to turn off the key indicator and restart it for a cycle of 10 000km or 1 year, see our article to carry out this procedure.
  • Oil level problem: This is a very basic problem and the easiest to resolve. You will just have to check your oil level, we recommend you to take the opportunity to verify all your oil levels.
  • EGR Valve: In the case of a light that comes on due to the EGR valve, you will need to have the details of this fault code through the diagnostic tool. Once you are sure of the source of the problem, you can try to clean your car by pushing the gears (hot engine), otherwise disassemble and clean the EGR valve of your Mercedes Classe A 3, we made a tutorial to help you to do it. In any other case, go to a mechanic and prepare to pay a few hundred euros.
  • Glow plugs: Finally, if your problem comes from your glow plugs, the procedure to replace them is quite very easy and you won’t need more than 40 euros worth of glow plugs.

There, you now know everything about the wrench light on Mercedes Classe A 3 , we hope this article has helped you solve your problem.

If you wish more tutorials on the Mercedes Classe A 3, go to our Mercedes Classe A 3 category.