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:
Indication of a flat tire
The warning lamp
lights up red. A
message appears on the Control Display.
In addition, a signal sounds.
There is a flat tire or a major loss in tire inflation
pressure.
Reduce your speed and ...
HD Radio™ reception
Many stations broadcast both analog and digital signals. If a digital radio network
is available, these stations can be received digitally and thus with better sound
quality.
License conditions
...
Tire inflation pressure values over
100 mph/160 km/h
740i, 740Li, 750i, 750Li
Without high-speed tuning feature
760i, 760Li
Without high-speed tuning feature
With high-speed tuning feature
750i xDrive, 750Li xDrive
Without high-speed tun ...