Keeping an eye on your car is important in the present day, indeed, if you do not do the minimum maintenance of it, or if you do not take into consideration signals of abnormality, you highly risk to see your car becoming unpleasant to use. This is precisely the topic we are going to focus on today, one of the indications that most disturbs motorists is the key indicator light on Mercedes Classe B 3 dash . To try to help you analyze this light, first we will see what this key light on Mercedes Classe B 3 means, then in a second how to proceed if the key light is lit on Mercedes Classe B 3? .

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

So we start our article with the meaning of a key indicator light on Mercedes Classe B 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 most important objective of this light is to notify you that it’s time to service your Mercedes Classe B 3 , nevertheless, this light can also have other explanations, even dozens of them. To discover the source of this issue the best remedy will be to run your Mercedes Classe B 3 through the diagnostic too l, if you don’t know how to do this process, you can find all the necessary info to execute this act in our dedicated article. We will try in the following list to give you the maximum info on the most important warning information it can send you:

  • An oil replace conducted without resetting the indicator: If you have done your oil replace on your own, it is very likely that you have not thought of resetting the oil change indicator of your Mercedes Classe B 3, here is the process to do this small reset of the key light of your car.
  • Oil level issue: It is possible that the oil level sensor is indicating that the oil level is too low.
  • EGR Valve: Another possibility is that the key light on your Mercedes Classe B 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 vehicle.
  • Glow plugs: At last, the last and most general cause of an orange wrench light on Mercedes Classe B 3 is that your glow plugs are getting tired.

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

We are now going to proceed to the second part of our article and try to present you the solutions to each of the problems described in the previous part and therefore how to proceed if I find out the wrench light on your Mercedes Classe B 3? To achieve this, we will take turns answering each of the problems you might face:

  • Reset the drain indicator light: As we revealed previously, a basic reset of the indicator light on your Mercedes Classe B 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 execute this operation.
  • Oil level issue: This is a very basic issue and the easiest to resolve. You will just have to verify your oil level, we recommend you to take the opportunity to check 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 points of this fault code through the diagnostic tool. Once you are sure of the source of the issue, you can try to clean your car by pushing the gears (hot engine), otherwise disassemble and clean the EGR valve of your Mercedes Classe B 3, we made a guide to help you to do it. Otherwise, go to a garage and prepare to pay a few hundred euros.
  • Glow plugs: Finally, if your issue comes from your glow plugs, the process to replace them is quite basic 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 B 3 , we hope this article has helped you solve your issue.

Whenever you have any additional questions about the Mercedes Classe B 3, do not hesitate to consult our Mercedes Classe B 3 category.