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Audi A4 (B9) 2016-2022 Owner's Manual: General information

Safety precautions



System limitations



Surrounding area detection

Sensor and camera coverage areas

Surrounding area detection
Fig. 100 Sensor detection rangers

Surrounding area detection
Fig. 101 Rearview camera coverage area

The assist systems analyze the data from various sensors and cameras installed in the vehicle. Do not use any assist systems if there is damage in there area of the sensors and cameras or on the vehicle underbody. Damage can impair the function of the sensors and cameras or cause malfunctions.

Have an authorized Audi dealer or authorized Audi Service Facility check their function.

Radar sensors

Depending on the vehicle equipment, the area in front of and behind the vehicle may be detected > fig. 100 (1).

The wheel sensors on the rear corners of the vehicle are positioned so that the adjacent lanes to the left and right are detected on roads with a normal lane width.

Ultrasonic sensors

Depending on vehicle equipment, various areas may be displayed in the MMI using the ultrasonic sensors > fig. 100.

The range of the displays depends on the location of the ultrasonic sensors:

  1. Approximately 4 feet (1.20 m)
  2. Approximately 3 feet (0.90 m)
  3. Approximately 5.2 feet (1.60 m)
  4. Approximately 3 feet (0.90 m)
  5. Approximately 3 feet (0.90 m)

The side area (6) is detected and evaluated when passing. There may have been changes to the surrounding area after switching the ignition off and on again, after opening the doors, or if the vehicle is left stationary for a period of time. In this case, the area will appear black until the area has been detected and evaluated.


Use the camera image on the display to assist you only if it shows a good, clear picture. Keep in mind that the image in the display is enlarged and distorted. Under certain circumstances, objects may appear different and unclear on the display.

The rearview camera can only detect the area marked in red > fig. 107. Only this area is displayed on the center display.


Sensors and cameras have spots in which the surrounding area cannot be detected. Objects, animals, and people may only be detected with limitations may not be detected at all.

Always monitor the traffic and the vehicle's surroundings directly and do not become distracted.



Locations of the sensors and cameras

Surrounding area detection
Fig. 102 Front area: sensors and cameras

Surrounding area detection
Fig. 103 Rear area: sensors and cameras

Front area

Depending on the vehicle equipment, the following sensors and cameras may be installed:

Rear area

Depending on the vehicle equipment, the following sensors and cameras may be installed:


Assist systems

Driving information

Other materials:

Text messages Applies to: vehicles with telephone Requirement: your mobile device must be connected to the MMI via Bluetooth Message Access Profile (Bluetooth MAP). Applies to: MMI: Select on the home screen: MESSAGES > () > e-mail (phone 1)/e-mail (phone 2)*. The following functions ar ...

Ventilator Grille Removal/Installation
Side Ventilator Grille Driver-side 1. Disconnect the negative battery cable.. 2. Remove the switch panel.. 3. Insert your hand from the area where the switch panel was installed, remove the side ventilator grille in the direction of the arrow shown in the figure while detaching hooks A. ...

Flywheel Inspection [C66 M R]
1. Remove the flywheel.. 2. Perform the following procedures to inspect the flywheel. If there is any malfunction or it exceeds the maximum specification, replace the flywheel.. a. Inspect the surface that contacts the clutch disc for scratches, nicks, and discoloration. ...

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