Mercedes-Benz C-Class 2009 Owners Manual - Manual (Page 241)

Useful features
239
Rear passenger compartment
1
Power outlet
2 Cover
Compass
i In order to receive an accurate reading in
the interior rear view mirror, the compass
must be calibrated and the magnetic field
zone set.
1 Interior rear view mirror
2 Compass display
3 Button
X Calling up the compass: Press button
3 briefly.
The compass displays the direction into
which the vehicle is currently traveling: N,
NE, E, SE, S, SW, W, or NW.
X Compass adjustment: Determine your
location on the basis of the following zone
maps.
Zone map North America
Controls in detail
Z