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:
Actions in the event of a flat tire
Run-flat tires
You can continue driving with a damaged tire at
speeds up to 50 mph/80 km/h.
Do not continue driving without run-flat
tires
If the vehicle is not equipped with run-flat tires
...
Safety
Both the coupe and convertible have front airbags plus side-impact airbags
built into the front seats. As required of all 2012 models sold in the U.S., the
640i has standard antilock brakes and an ...
Wiper blade replacement
Do not fold down the wipers without wiper
blades
Do not fold down the wipers if wiper blades have
not been installed; this may damage the windshield.◀ ...
