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:
Exterior
Visual updates for 2012 affect the 128i more than the 135i. The 128i carries
revised circular fog lamps, replacing last year's horizontal lamps. Outboard of
the fog lights, vertical slats improve ...
Engaging the transmission position
► Transmission position P can only be disengaged
if the engine is running and the brake
pedal is pressed.
► With the vehicle stationary, press on the
brake pedal before shifting out of ...
Coolant
Coolant consists of half water and half additive. Not all commercially available
additives are suitable for your BMW. Ask your BMW center for suitable additives.
Only use suitable additives; other ...