Calibrating the digital compass
The digital compass must be calibrated in the following situations:
▷ An incorrect compass direction is shown.
The cardinal direction displayed does not
change even if the direction of travel
changes.
▷ Not all compass directions are shown.
Procedure
1. Make sure that there are no large metal objects or overhead power lines in the vicinity of the vehicle and that there is enough space to drive in a circle.
2. Set the currently valid compass zone.
3. Press the adjustment button for 6‑7 seconds to call up C. Then drive at least one full circle at a maximum speed of 4 mph/7 km/h.
When the system is calibrated, the C is replaced by the compass directions.
See also:
Sound output
Switching on/off
When the ignition is switched off: press ON/OFF
button on the radio.
Muting
When the ignition is switched on or the engine
is running: press the ON/OFF button on the
radio. ...
Safety
Both the coupe and convertible have front airbags plus side-impact airbags
built into the front seats. As required of all 2012 models sold in the U.S., the
640i has standard antilock brakes and an ...
General information
Instructions for voice activation system.
To have the available spoken instructions read
out loud: ›Voice commands‹ ...