control is optimized for driving with the convert-
ible top open. In addition, the air supply is
increased as the speed increases.
If the convertible program has been selected, it
is automatically active every time the top is
opened.

The effect of the convertible program can
be greatly enhanced if the wind deflector

is installed.

Ventilation

1 Serrated dial for smoothly opening and

closing air vents

2 Lever for changing the airflow direction

Do not drop any foreign bodies into the
vent outlets, as otherwise these could be

catapulted outwards and lead to injuries.

Ventilation for cooling

Adjust the vent outlets to direct the flow of cool
air in your direction, for instance, if the interior
has become too warm, etc.

Draft-free ventilation

Set the vent outlets so that the air flows past
you and is not directed straight at you.

Microfilter/activated-charcoal filter

The microfilter removes dust and pollen from
the incoming air. The activated-charcoal filter
provides additional protection by filtering gas-
eous pollutants from the outside air. Your BMW
center replaces this combined filter as a stan-
dard part of your scheduled maintenance.
You can have more detailed information shown
on the Control Display, refer to page

This manual is related to the following products:

645Ci Convertible 2005