BMW 4 Coupe Series Manual page 273

Microfilter/activated-charcoal
filter
The microfilter removes dust and pollen from the
incoming air.
The activated-charcoal filter also removes gas‐
eous pollutants from the outside air that enters
the vehicle.
Have this combined filter changed during vehicle
maintenance.
Ventilation
Principle
The air flow directions can be adjusted individu‐
ally for direct or indirect ventilation.
Setting the ventilation
General information
Open the air vents and position them to ensure
effective climate control.
Direct ventilation
The air flow is directed towards the passengers.
The air flow heats or cools noticeably, depending
on the adjusted temperature.
Indirect ventilation
The air flow is not directed towards the passen‐
gers. The vehicle interior is warmed or cooled in‐
directly, depending on the set temperature.
Online Edition for Part no. 01405A392C9 - VI/21
Climate control
Front ventilation
▷ Lever for changing the air flow direction, ar‐
row 1.
▷ Thumbwheel for variable opening and closing
of the air vents, arrow 2.
Ventilation in rear, center
▷ Lever for changing the air flow direction, ar‐
row 1.
▷ Thumbwheel for variable opening and closing
of the air vents, arrow 2.
CONTROLS
273