Volume
▷ "Speed volume": speed-dependent volume
control.
▷ "PDC": volume of the PDC signal compared
to the entertainment sound output.
▷ "Gong": volume of the signal, such as the
safety belt reminder, compared to the entertainment
sound output.
▷ "Microphone": volume of the microphone
during a phone call.
▷ "Loudspeak.": volume of the loudspeakers
during a phone call.
The following volumes are only stored for the
respective paired telephone: "Microphone",
"Loudspeak.".
See also:
For the 530i, 535i, 550i, 525d,
530d and 535d: check oil level
The concept
The oil level is monitored electronically and displayed
on the Control Display.
Requirements
▷ The engine must be running and warm after
the vehicle has been driven for at lea ...
Vehicle information
Computer
...
Check the tire inflationpressure 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 f ...