Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Position and function of the collision sensor of the Audi Q3.

Model: Audi Q3 8U - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Part: Checks and maintenance

See other generations:
Video tutorial

The airbag collision sensor (or crash sensor) detects the impact and its severity, thereby determining which airbags to activate. The front sensor is integrated, as we can see in the video, into the front structure and has the replacement code 8K0955557C for the Audi Q3 2015/2018. The side sensors, on the other hand, are located in the door pillars or under the seats, depending on the versions.

If the sensor malfunctions, it can trigger a diagnostic error, detectable from the EOBD port, such as B1015 (fault in the front sensor) or U0155 (loss of communication with the control unit). The connectors for the sensors are usually located under the front seats, so it is a common fault for the connector to become loose.


Posted on 30 November 2025 by ScegliAuto


Related tutorials

How to Open and Close the Sunroof of an Audi Q3
How to Open and Close the Sunroof of an Audi Q3
Audi Q3 (2011-2018 / 8U) To open the sunroof of an Audi Q3, turn on the ignition and locate the dedicated control on the roof trim near the rearview mirror. Rotate or slide t…
Problem with the wheel rotation sensor of an Audi Q3 Sportback.
Problem with the wheel rotation sensor of an Audi Q3 Sportback.
Audi Q3 (2018-2025 / F3) In this video we can see the problem with the wheel speed sensor of an Audi Q3 Sportback: on this car, yellow warning lights related to ABS, EDC, and…
How to Disable the Mirror Folding Function on the Audi Q3
How to Disable the Mirror Folding Function on the Audi Q3
Audi Q3 (2011-2018 / 8U) In this video, learn how to disable the folding of the exterior mirrors. This function can be particularly useful in winter when the outside temperat…

Other guides you may be interested in

How to Activate the Automatic Folding and Unfolding of the Wing Mirrors on the Jeep Compass

Follow these brief instructions to activate the automatic folding and unfolding of the external wing mirrors on the Jeep Compass. First, get inside the vehicle and turn on the ignition; then press the button located beneath the mirror glass adjustment to electrically open the mirror, as shown in the video. Pressing the button in the opposite direction will close the mirrors; by holding the button, the mirrors will open and close automatically!

Watch the video!


by ScegliAuto

More videos