2005 BMW Z4 ROADSTER 2.5I Owner's Manual

Reference
At a glance
Controls
Driving tips
Mobility
55
In the event of a malfunction, have the air-
bag system checked immediately. Other-
wise, there is a risk that the system may not
respond in the expected manner to an impact
occurring within its normal response range.<
Passenger airbag status lamp
The center console contains one of the indica-
tor lamps shown in the illustration.
The indicator lamp indicates whether or not the
passenger airbag system is activated or deacti-
vated as of ignition key position 1.
The indicator lamp is used only for the
passenger airbag system. The indicator
lamp illuminates to show that the passenger air-
bag system is OFF/not active.<
>The lamp illuminates briefly during startup,
but then goes out if the seat is empty, or if
an adult or child of sufficient size is recog-
nized
>The lamp remains illuminated when a child
in a rear facing child-restraint system is
detected, indicating that the passenger air-
bag system is off.
Find more information about the passenger air-
bag system and seat occupation detection in
the section entitled Automatic deactivation of
the passenger airbags.

Lamps
56
Lamps
Parking lamps/Low beams
Parking lamps
The front, rear and side vehicle lighting
is switched on. You can use the parking
lamps to signal the position of the vehi-
cle when it is parked. For information on lighting
on one side of the vehicle for parking, which is
available as an additional feature, refer to
page57.
Low beams
When you switch off the ignition with
the low beam headlamps on, only the
parking lamps will remain on.
Defective bulb
The indicator lamp lights up:
At least one bulb of the vehicle's exte-
rior lighting has failed.
For replacing bulbs refer to page91.
Follow me home lamps
When you activate the headlamp flasher after
parking the vehicle and switching off the lights,
the low beams will come on for a brief period.
You can also have this function activated/
deactivated if you wish.<
LIGHTS ON warning
Whenever you open the driver's door after hav-
ing turned the ignition key to position 0, you will
hear an acoustic signal for a few seconds to remind you that the lamps have not been
switched off.
Daytime driving lamps*
If you desire, the light switch can be left in the
second position:
When the ignition is switched off, the external
lighting is also switched off.
You can have the activation settings for
the daytime driving lamps programmed
on your vehicle.<
Automatic headlamp control*
When the switch is set to this position,
the system automatically activates and
cancels the low beams in response to
changes in ambient light, for example in tun-
nels, at dusk, and when it is raining or snowing.
The low-beam headlamps remain on
regardless of the ambient light when you
switch on the fog lamps.<
Automatic headlamp control cannot
serve as a substitute for the driver's jud-
gement in determining when the vehicle lights
should be switched on. For example, the sen-
sors are not able to detect fog. To avoid safety
risks, you should respond to these kinds of low-
visibility situations by switching the headlamps
on manually.<
You can have the sensitivity of your vehi-
cle's automatic headlamp control
adjusted.<

Reference
At a glance
Controls
Driving tips
Mobility
57
High beams/Standing lamps
1High beams
2Headlamp flasher
3Standing lamps
Left or right standing lamps*
As an additional feature, you can illuminate your
vehicle on either side for parking:
1.Turn the ignition key to position 0 or
remove it
2.Turn off the low beams
3.Push the lever in the appropriate turn-signal
direction, until it engages.
The standing lamps discharge the bat-
tery. Avoid using the standing lamps for
longer periods of time; otherwise, you may no
longer be able to start the engine.<
Fog lamps*
Tap the button to switch them on or off.
The parking lamps or low-beam head-
lamps must be switched on. A green indi-
cator lamp comes on in the instrument
cluster to indicate that the front fog lamps are on.If the automatic headlamp control is on,
the low beams will automatically come on
whenever you activate the front fog lamps.<
Instrument lighting
Turn the rotary dial to adjust the illumination
intensity.
Interior lamps
The interior lamps operate automatically.
To switch the interior lamps on and off
manually
Press button1 briefly.
If you would like the interior lamps to remain off
all the time, press and hold the button for
approx. 3 seconds.
Press the button briefly to revert to normal
operation.
Reading lamps*
Switch on and off with button2 adjacent to
each lamp.

Controlling the climate for pleasant driving
58
Controlling the climate for pleasant driving
Air conditioning
1Air onto the windshield and the side win-
dows
2Air for the upper body area59
3Air for the footwell
4Air distribution595Air conditioning59
6Outside air/recirculated air mode59
7Temperature adjustment59
8Air supply/blower59
9Rear window defroster59

Reference
At a glance
Controls
Driving tips
Mobility
59
Air distribution
You can direct airflow onto the win-
dows , toward the upper body
and into the footwell . All interme-
diate settings are possible.
Air supply/blower
Turn the rotary control to adjust the
air supply. Both heating and ventila-
tion become more effective as the air
supply rate is increased.
Turn the rotary control toward zero:
The blower and the heating are turned off, and
the air supply is stopped.
Temperature
In order to increase the temperature
of the passenger compartment, turn
to the right toward the red zone.
Air conditioning
The air is cooled and dehumidified
and, depending on the temperature
setting, rewarmed.
Depending on the weather, the wind-
shield may fog over briefly when the engine is
started.
Condensation forms during operation of
the air conditioning system, which then
exits under the vehicle. Traces of condensed
water on the ground underneath the vehicle are
thus normal.<
Outside air/recirculated air mode
If there are unpleasant odors in the
outside air, you can temporarily block
the supply of incoming air. The sys-
tem then recirculates the air currently
within the vehicle.
If the windows fog over in the recirculated
air mode, switch this mode off and
increase the air supply as required. Do not use
the recirculated-air mode continuously over a
long period of time as this would otherwise
reduce the air quality in the interior of the vehi-
cle.<
Rear window defroster
The indicator lamp lights up when
the rear window defroster is active.
The rear window defroster switches
off automatically.
Ventilation
You can adjust the blower controls for the upper
body area to obtain the optimum airflow rates
and directions for your personal requirements:
1Rotary dials for opening and closing the
vents at any setting desired
2Slide for adjusting airflow direction
Microfilter
The built-in microfilter removes dust and pollen
from the incoming air and in the recirculated air
mode. Your BMW center will replace this filter
during the regularly scheduled maintenance. A
substantial reduction in airflow indicates that
the filter needs to be replaced earlier.

Controlling the climate for pleasant driving
60
To defrost windows and remove
condensation
1Turn the rotary control to
2Turn the rotary blower control for the air
supply completely to the right
3Turn the rotary temperature control com-
pletely to the right
4To defrost the rear window, switch on the
rear window defroster

Reference
At a glance
Controls
Driving tips
Mobility
61
Automatic climate control*
1Air onto the windshield and the side win-
dows
2Air for the upper body area63
3Air for the footwell
4Individual air distribution62
5To defrost windows and remove
condensation62
6Automatic air distribution and air
supply627Air supply/blower62
8Air conditioning62
9Maximum cooling62
10Temperature62
11Outside air/Automatic recirculated air con-
trol AUC/recirculated air mode62
12Rear window defroster63

Controlling the climate for pleasant driving
62
Tips for pleasant driving
Use the automatic system – switch on with
AUTO button 6. Select the desired interior tem-
perature.
Detailed setting options are described for you
below.
Automatic air distribution and supply
The AUTO program assumes the
adjustment of the air distribution and
air supply for you and in addition
adapts the temperature to external
influences, summer or winter, to meet prefer-
ences you can specify.
In the AUTO program, the air conditioning
mode is also turned on at the same time.
The AUTO program functions only to a
limited extent when the convertible top is
open.<
Individual air distribution
You yourself can direct airflow onto
the windows , toward the upper
body and into the footwell . The
arrow lights up. The automatic air
supply remains unchanged. All intermediate
settings are possible. By pressing the AUTO
button, you can reactivate the air distribution.
Temperature
The interior temperature that
appears on the display panel is a gen-
eral figure intended for reference
purposes. When you start the vehi-
cle, the system ensures that the selected tem-
perature is reached as quickly as possible,
regardless of the season. It then maintains this
temperature.
Air supply/blower
Turn the rotary control to adjust the
air supply. This shuts off the auto-
matic air supply. The arrow lights up.
The automatic air distribution
remains unchanged. You can reactivate the
automatic air supply by pressing the AUTO but-
ton.When you turn the rotary control toward zero:
the blower, heating and air conditioner are
switched off, and the air supply is stopped. You
can reactivate the system by turning the control
toward the right again.
To defrost windows and remove
condensation
This program quickly removes ice
and condensation from the wind-
shield and the side windows.
Maximum cooling
Above an outside temperature of
327/06 and with the engine run-
ning, you achieve a maximum cooling
effect as quickly as possible. At the
same time, the air conditioning is turned on.
The temperature is set to the lowest possible
value. The system switches to the recirculated
air mode, and air flows at maximum blower
speed from the ventilation grills in the upper
body area only. Therefore, the air outlets must
always be open when you select this program.
Air conditioning
The air is cooled and dehumidified
and, depending on the temperature
setting, rewarmed.
Depending on the weather, the wind-
shield may fog over briefly when the engine is
started.
The air conditioning system is automatically
switched on when you use the AUTO program.
Condensation forms during operation of
the air conditioning system, which then
exits under the vehicle. Traces of condensed
water on the ground underneath the vehicle are
thus normal.<
Outside air/Automatic recirculated air
control AUC/recirculated air mode
You can respond to unpleasant
external odors or pollutants by tem-
porarily stopping the flow of outside
air. The system then recirculates the
air currently within the vehicle.