Paying attention to your vehicle is fundamental in these modern times, in truth, if you do not do the lowest maintenance of it, or if you do not take into account signals of abnormality, you highly risk to see your car withering away. This is precisely the theme we are going to speak about in this article, one of the signs that most disturbs motorists is the key indicator light on Audi A4 dash . To try to help you analyze this light, first we will see what this key light on Audi A4 corresponds to, then in a second what to do if the key light is lit on Audi A4? .

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What does the key light on Audi A4 indicate?

So we begin our content with the meaning of a key indicator light on Audi A4 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 Audi A4 , however, this light can also have other explanations, even dozens of them. To find the source of this problem the best remedy will be to run your Audi A4 through the diagnostic too l, if you don’t know how to do this process, you can locate all the necessary info to carry out this work in our dedicated content. We will try in the following list to give you the maximum info on the main warning messages it can send you:

  • An oil change done 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 Audi A4, here is the process to do this small reset of the key light of your car.
  • Oil level problem: 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 Audi A4 is on because your EGR valve is dirty, frequently the case if you are driving short distances or not pushing the gears of your car.
  • Glow plugs: Finally, the last and most general trigger of an orange wrench light on Audi A4 is that your glow plugs are getting tired.

What if the orange key light on Audi A4 is on?

We are now going to proceed to the second part of our content and try to present you the solutions to each of the problems described in the previous part and consequently what to do if I discover the wrench light on your Audi A4? To get this done, we will take turns answering each of the problems you may possibly face:

  • Reset the drain indicator light: As we outlined previously, a basic reset of the indicator light on your Audi A4 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 carry out this process.
  • Oil level problem: This is a very basic problem and the easiest to resolve. You will simply have to check your oil level, we suggest 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 problem, 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 Audi A4, we done a guide to help you to do it. In any other case, go to a garage and prepare to pay a few hundred euros.
  • Glow plugs: Finally, if your problem 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 Audi A4 , we hope this content has helped you solve your problem.

If you want more guides on the Audi A4, go to our Audi A4 category.