Lumbar support
The curvature of the seat backrest can be adjusted in such a way that it supports the lumbar region of the spine. The lower back and the spine are supported for upright posture.

- Press the front/rear section of the switch. The curvature is increased/decreased.
- Press the upper/lower section of the switch. The curvature is shifted up/down.
See also:
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 ...
Interior rearview mirror
Reducing the blinding effect
From behind when driving at night: turn the
knob. ...
Opening/closing the glass sunroof and sliding visor together
▷ Slide switch back to the resistance
point and hold.
Glass sunroof and sliding visor
open together as long as
the switch is held down.
▷ Press switch back past the resistance po ...
