For your own safety

See also:

Controls
Almost all functions can be operated in the same manner as they are in the front. Special features of operating the system in the rear are described here. ...

Drivetrains
The 528i, 535i and 550i are rated at 240, 300 and 400 horsepower, respectively. The turbocharged version of the 3.0-liter inline-six-cylinder in the 535i makes the 550i superfluous, rocketing the ...

Adjusting the height
Adjusting the height ▷ To raise: pull. ▷ To lower: press the button, arrow 1, and push the head restraint down. ...