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:
Malfunction
The yellow warning lamp flashes
and
then lights up continuously. A Check
Control message is displayed. No flat
tire can be detected.
Display in the following situations:
► A wheel wi ...
Functional requirements
The system must have been initialized when the
tire inflation pressure was correct; otherwise,
reliable signaling of a flat tire is not ensured. Initialize
the system after each correction of th ...
Braking: One Step Up, Two Back
There is an aspect of the 5 Series that we do object to, though, and that's
the braking. To be clear, the car stops well enough; it's not a safety concern.
The problem is the feel of the braking, ...