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:
Storage compartment in the rear
Storage compartment is located in the rear center
console. ...
Priority options
The driver has priority
The source selected via iDrive in the front is
output on the vehicle loudspeakers and can
be selected but not operated from the rear.
Other audio or video sources ...
Observe the following when
refueling
The fuel tank is full when the filler nozzle clicks
off the first time.
Handling fuels
Obey safety regulations posted at the gas
station. ...