See also:

BMW X6: rear seats
The head restraints in the rear cannot be adjusted and cannot be removed. ...

Tire inflation pressure values up to 100 mph/160 km/h
320i 328i 335i ...

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 ev ...