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:
At a glance
1 Function bar
2 Route section with traffic obstruction
3 Traffic sign for traffic obstruction
4 Planned route
5 Current location
6 Upper status field
7 Lower status field
Lines in the map
S ...
General information
Do not adjust while driving
Do not adjust the steering wheel while
driving; otherwise, an unexpected movement
could result in an accident.◀ ...
Under the Hood
The 528i has a 240-horsepower, 3.0-liter six-cylinder, while the 535i gets a
300-hp, turbocharged 3.0-liter six-cylinder. The 550i has a twin-turbo,
4.4-liter V-8 that makes 400 hp. All three use ...
