Check the tire inflation pressure regularly
Check and, if necessary, correct the tire inflation pressure at least twice a month and before starting on a long trip.
Low tire inflation pressure increases rolling resistance and thus raises fuel consumption and tire wear.
See also:
Priority options
The driver has priority
The source selected via iDrive in the front is
output on the vehicle loudspeakers and can
be selected but not operated from the rear.
Other audio or video sources ...
Loss of the remote controls
Lost remote controls can be blocked by your
service center. ...
Environmental conditions
Say the commands, numbers, and letters
smoothly and with normal volume, emphasis,
and speed.
Always say commands in the language of
the system. The language for the mobile
phone voice ...