Audi A4 Owners & Service Manuals

Audi A4: Digital compass

Switching the compass on and off

Applies to: vehicles with digital compass

Lights and Vision
Fig. 55 Rearview mirror: digital compass is switched on

  • To turn the compass on or off, press the button (1) until the compass display in the mirror turns on or off.

The digital compass only works when the ignition is turned on. The directions are indicated with abbreviations: N (north), NE (northeast), E (east), SE (southeast), S (south), SW (southwest), W (west), NW (northwest).


To prevent inaccurate compass readings, do not bring any remote controls, electrical devices or metallic objects near the mirror.

Adjusting the magnetic zone

Applies to: vehicles with digital compass

Lights and Vision
Fig. 56 Magnetic zone map

The magnetic zone must be adjusted correctly for the compass to read accurately.

  • Press and hold the button (1), fig. 55 until the number of the magnetic zone appears in the interior rearview mirror.
  • Press the button (1) repeatedly to select the correct magnetic zone. The selection mode turns off after a few seconds.

Calibrating the compass

Applies to: vehicles with digital compass

If the display is incorrect or inaccurate, the compass must be recalibrated.

  • Press and hold the button (1) until C, fig. 55 appears in the rearview mirror.
  • Drive in a circle at about 6 mph (10 km/h) until a direction is displayed in the rearview mirror.


To reduce the risk to yourself and other drivers, calibrate the compass in an area where there is no traffic.


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