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:
Under the Hood
The 135i's turbocharged inline-six makes 300 horsepower and 300 pounds-feet
of torque. It works through a six-speed manual or BMW's seven-speed dual-clutch
automatic. Either car hits 60 mph in abo ...
Fuel gauge
The vehicle inclination may
cause the display to vary.
Notes on refueling. ...
Example: dialing a phone number
1. Briefly press
the button on the
steering wheel.
2. ›Dial number‹
The system says: »Please say the number«.
3. For instance, ›123 456 790‹
The system says: »123 456 790. Continue?
...
