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:
Activating ECO PRO
Press button repeatedly until
ECO PRO
is displayed in the instrument cluster. ...
Activating/deactivating Bluetooth
Bluetooth is not permitted everywhere. Comply
with all safety guidelines and regulations.
1. "Telephone".
2. "Options" Open.
3. "Bluetooth®"
...
Aerodynamic optimisation of underside panelling
As the excellent drag coefficient (cd = 0.26) would suggest, the aerodynamics
of the new BMW 3-Series have been intensively honed in a state-of-the-art wind
tunnel. The optimised aerodynamics also ...
