Paying attention to your car is fundamental in these modern times, in fact, if you do not do the lowest routine service of it, or if you do not take into account signs of abnormality, you highly risk to see your car withering away. This is precisely the topic we are going to focus on today, one of the symptoms that most interferes with motorists is the key indicator light on Mercedes Classe S dash . To try to help you analyze this light, first we will see what this key light on Mercedes Classe S points, then in a second how to handle it if the key light is lit on Mercedes Classe S? .

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What does the key light on Mercedes Classe S indicate?

So we begin our content with the meaning of a key indicator light on Mercedes Classe S dash , it may be that furthermore to the key you have the logo of a car next to it. Be aware that the main function of this light is to inform you that it’s time to service your Mercedes Classe S , however, this light can also have other explanations, even dozens of them. To find the source of this issue the best solution will be to run your Mercedes Classe S through the diagnostic too l, if you don’t know how to get this done process, you can locate all the required information to perform this act in our dedicated content. We will try in the following list to give you the maximum information on the main warning messages it can send you:

  • An oil change conducted without resetting the indicator: If you have done your oil change on your own, it is probably that you have not thought of resetting the oil change indicator of your Mercedes Classe S, here is the process to get this done small reset of the key light of your car.
  • Oil level issue: It is possible that the oil level sensor is suggesting that the oil level is too low.
  • EGR Valve: Another possibility is that the key light on your Mercedes Classe S is on because your EGR valve is dirty, often the case if you are driving short distances or not pushing the gears of your car.
  • Glow plugs: At last, the last and most basic trigger of an orange wrench light on Mercedes Classe S is that your glow plugs are getting tired.

What if the orange key light on Mercedes Classe S is on?

We are now going to proceed to the second component of our content and try to present you the solutions to each of the complications described in the previous part and therefore how to handle it if I find out the wrench light on your Mercedes Classe S? To get this done, we will take turns answering each of the complications you may possibly face:

  • Reset the drain indicator light: As we revealed previously, a basic reset of the indicator light on your Mercedes Classe S will be enough to turn off the key indicator and restart it for a cycle of 10 000km or 1 year, see our content to perform this process.
  • Oil level issue: This is a very basic issue and the easiest to correct. 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 because of 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 issue, you can try to clean your car by pushing the gears (hot engine), in any other case disassemble and clean the EGR valve of your Mercedes Classe S, we done 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 originates 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 S , we hope this content has helped you solve your issue.

To get more tips on the Mercedes Classe S, take a look at the Mercedes Classe S category.