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:
Coolant temperature
A warning lamp will come on if the coolant, and
therefore the engine, becomes too hot. In addition,
a message will appear on the Control Display.
Check the coolant level ...
Tire age
The tire manufacturing date is contained in the
tire identification mark: DOT ... 3410 means that
the tire was manufactured in the week 34 of
2010.
BMW recommends that you replace all tires aft ...
Interior
Even though it's relatively unchanged for 2009, the X3's interior remains
very upscale for this segment. My test car's dark brown leather upholstery and
black dashboard made for an especially clas ...