The concept
The system does not measure the actual inflation pressure in the tires.
It detects a pressure loss in a tire by comparing the rotational speeds of the individual wheels while moving.
In the event of a pressure loss, the diameter and therefore the rotational speed of the corresponding wheel change. This is detected and reported as a flat tire.
See also:
USB audio interface*/mobile phone
audio interface
At a glance
It is possible to connect external audio devices.
They can be operated via iDrive. The sound is
output on the vehicle loudspeakers.
Connectors for external devices
Connection via ...
Observe the following when
refueling
When refueling, insert the filler nozzle completely
into the filler pipe. Lifting up the fuel
pump nozzle during refueling causes:
▷ Premature pump shutoff.
▷ Reduced efficiency in t ...
Functional requirements
The system must have been reset when the inflation
pressure was correct; otherwise, reliable
signaling of a flat tire is not ensured. Always use
wheels with TPM electronics to ensure that the
...