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Audi Pre Sense Fault [Malfunction Causes & Fix]

Audi Pre-Sense is one of the top safety features that Audi has to offer, pre sense works by using radar sensors and cameras (In newer models) to detect objects in front of or around the vehicle

however, a small thing can result in the system malfunctioning and cause a “pre sense fault” to come up.

In this article, I am going to talk about what this means, as well as what to do if you get a “pre sense fault” warning on your dashboard. let’s get to it.

Audi’s Pre Sense System Overview

Before we dive deep into what pre sense fault is, it is critical to understand what the system is and how it works.

Audi Pre Sense is a suite of driver assistance technologies designed to enhance safety in Audi vehicles. It includes features such as the Pre Sense Side, which employs a cross-traffic warning system to detect objects and other things that might be in the way.

With the help of radar sensors and cameras, the system can detect hazards and determine if there is a risk of collision.

If it detects an imminent threat, Pre Sense will alert you with a beep and flashing lights on your dashboard. It then uses the brakes to slow down or stop your car in order to avoid trouble.

What Does Audi’s “Pre Sense Fault” Mean?

Now, that I have briefly explained what this feature is and how it works, let’s look at what the “Pre Sense Fault” message means.

In simple terms, Pre Sense Fault is a warning message that means there is an issue with the system, often related to the system’s sensors or cameras.

Audi Pre Sense Fault Common Causes

I have worked on a handful of Audi’s with this issue and it’s a common problem, based on my experience and the research I’ve done. Here are the main causes:

1. Dirty/Blocked Parking Sensors:

This is the most common cause of Pre Sense Fault messages.

If your parking sensors are clogged with dirt and debris, they can’t accurately detect objects in front of or behind your vehicle.

This can lead to issues such as this one where the system will beep at you when there is nothing in front of you because it doesn’t have a clear line-of-sight to any cars or objects.

If you live where it snows frequently , then your parking sensors can quickly get clogged with snow and ice. It’s a good idea to clean them every so often, especially if you drive in bad weather.

The first thing I recommend that you do when you get the pre sense fault message, is check and clean parking sensors and windshield sensors of your Audi.

2. Dirty Windshield Cameras:

Another thing that can cause a “pre sense fault” on an Audi is a dirty windshield.

If your windshield has build-up or debris on it, this can cause a problem with the camera system’s ability to see clearly.

This means that the sensors won’t be able to detect objects in front of you as accurately and may cause this issue.

3. Windshield Cameras Need to be Recalibrated

If you recently changed your windshield on your Audi , you will need to recalibrate your camera system.

This is because the windshield shape and angle can change, which means that the cameras will have a different view of the road than they did before and need to be recalibrated, that can be done by any Audi dealer or you can take your car to an authorized Audi shop.

If you have any questions about recalibrating your windshield camera system, it’s best to consult with a certified Audi mechanic.

4. Failed/Failing Sensors

In some rare instances, the “Pre sense Fault” can be caused by one or more of the Audi’s sensors failing or becoming damaged.

This can happen, for example, if you hit a rock or other object while driving.

If this happens, it can cause damage to one or more of your Audi’s sensors and they may not be able to send signals back to the computer system.

Steps to Fix and Reset Audi’s Pre Sense Fault

Finally, let us look at how to fix and reset Audi’s Pre Sense Fault.

If you have the option, it’s best to take your vehicle to a certified Audi mechanic for this repair. However, if you must perform the work on your own vehicle, here are the steps that need to be taken:


  1. Clean Your Radar and Park sensors
  2. Check your Rain sensors (Windshield)
  3. If you recently changed the windshield then have the camera calibrated
  4. Disconnect and reconnect the battery to reset the system

Here we go, I hope this article has helped you to learn more about Audi’s Pre Sense Fault and how you can fix it. If you have any questions or comments, please use the contact form and I will be happy to respond.

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1 thought on “Audi Pre Sense Fault [Malfunction Causes & Fix]”

  1. My 2017 Audi Q7 Pre Sense Fault illuminated. Took to Audi dealer to inspect. They pulled the fault codes and told me it was the Right Front Seat Belt Tensioner Control Module. I tried looking up the part number, but no success. I even got the part number (4MO-857-706-N-GLE) from Audi and can’t find this part anywhere on the internet…even at Audi USA. Any thoughts. As surprise, surprise this particular module isn’t covered by the bumper-to-bumper warranty I purchased. Any help?

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