Monitoring your automobile is imperative in these modern times, indeed, if you do not do the minimum service of it, or if you do not take into account symptoms of abnormality, you highly risk to observe your car getting in bad conditions. This is precisely the topic we are gonna discuss today, one of the indicators that most perturbs car owners is the ABS warning light on Audi A8. In an attempt to help you analyze this warning light, we will first look at what this ABS warning light corresponds to, then in a second how to handle it if the ABS light is on Audi A8?.

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What does the ABS light on Audi A8 signify?

We will start our paper with the meaning of an ABS warning light on Audi A8, for this, in first, we will see what an ABS is, and later on, why the ABS light on your car lights up.

What is the ABS on Audi A8?

To begin with, it is vital to explain to you what the ABS of your Audi A8 is utilized for so that you can understand the rest of this guideline. The ABS (Anti-lock Braking System) is a system that prevents the wheels of your car from locking during braking. The aim of this system is to optimize the braking distance of a car by preventing the wheels from locking, sliding on the road and you losing control of your car. The ABS system of your Audi A8 is composed of several parts, here they are:

  • Speed sensors on each wheel, which will analyze if one of the wheels locks up.
  • A hydraulic system and valves that will control the pressure of the pads on the discs to control the braking power of the car
  • A computer that is the control center of your entire ABS system as well as the ABS light of your Audi A8

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In fact, you can simply feel how your car’s ABS works. If you have to steer, you will find that your car will brake by pawing, this is precisely the behaviour that ABS allows, it will optimise braking to the maximum by linking the phases of pressure on the brake discs and the phases of release to prevent the wheels from locking up.

Meaning of an ABS light on Audi A8

Now we proceed to the part that you are likely more enthusiastic about, meaning of an ABS warning light on a Audi A8? To begin with, it is an orange light, so if it is on it shows that your ABS system is faulty. You should be advised that when the ABS warning light is on, the ABS will be put into security mode, so you should adjust your driving and not take any risks. Here are the different problems that the ABS warning light on your Audi A8 can signal:

  • It could be a simple short circuit, a broken wiring harness, a faulty relay or fuse. Use a pressure gauge to verify it.
  • A malfunctioning ABS sensor: A failure of one of them causes the ABS light on your Audi A8 to turn on
  • The ABS hydraulic block of your Audi A8: If it is faulty it is possible that the indicator light will occur and you will no longer be able to use your ABS.
  • The ABS computer: If the computer has a problem, being the center of all decisions made to manage your ABS, the light will unavoidably turn on.

What if the ABS light activate on my Audi A8?

We will now proceed to the part where we will try to give you some answers to switch off this light, and thus answer the following question, what to do if the ABS light is on on my Audi A8?. The answers will could depend on the deficiencies you are enduring. To begin with, pass your Audi A8 to the diagnostic tool, if you don’t know how to read a fault code on Audi A8, don’t think twice to go through our guideline which details the steps to take. Once you have located the origin of your problem, here are the steps to take to correct it and turn off the ABS light on your Audi A8:

  • Problem of the ECU or the hydraulic block: It can only be adjusted, and in this situation, you will have to go through a specialist, but if it’s dead, it could cost you around 1000€ to replace the ECU and 1500 to 2000€ if you have to replace both of them.
  • Electrical problem: Once you’ve noticed an electrical problem with your manometer, if it’s only a fuse or a relay, count around 10€ maximum, otherwise you’ll have to repair the wiring harness.
  • A faulty sensor: Often a simple cleaning of the sensors will be enough to get rid of the problem, otherwise changing a sensor can cost up to a few hundred euros.

If you have any further questions about the Audi A8, do not hesitate to consult our Audi A8 category.