BMW Z4 ROADSTER Owner's Manual page 235

Ventilation
Principle
The air flow directions can be adjusted individ-
ually 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 passen-
gers. The air flow heats or cools noticeably,
depending on the adjusted temperature.
Indirect ventilation
The air flow is not directed towards the pas-
sengers. The vehicle interior is warmed or
cooled indirectly, depending on the set tem-
perature.
Front ventilation
▷ Lever for changing the airflow direction, ar-
row 1.
▷ Thumbwheel for variable opening and clos-
ing of the air vents, arrow 2.
Online Edition for Part no. 01405A88B63 - VI/23
Climate control
Pre-ventilation
Principle
The car's interior can be cooled or heated
before driving off with the pre-ventilation. De-
pending on set temperature and ambient tem-
perature, the car's interior is ventilated or pos-
sibly heated using the residual engine heat.
General information
The system can be switched on and off directly
or via a preset departure time.
The activation time is determined based on
the outside temperature. The system promptly
switches on before the selected departure
time.
Functional requirements
▷ The vehicle is in idle state or standby state
and not in drive-ready state.
▷ The vehicle battery is sufficiently charged.
If pre-ventilation is switched on, the vehicle
battery will be discharged. Thus, limit the
maximum activation time to save the vehi-
cle battery. The system will be available
again after the engine is started or after a
short trip.
▷ Make sure that the vehicle's date and time
are set correctly.
▷ Open the air vents to allow air to flow out.
Switching on/off directly
General information
There are different ways to switch the system
on or off.
The system switches off automatically after a
certain period of time. The system continues to
run for some time after being switched off.
CONTROLS
235
OwnersManuals2.com