2005 BMW 645CI CONVERTIBLE Owners Manual

Technology for comfort, convenience and safety
88 2.Press the rollover protection unit halfway
down from above.
3.Let go of the release.
4.Press the rollover protection unit down until
it snaps into place.
5.Use the same procedure for the second roll-
over protection unit.
Have the rollover protection system checked
after unexpected triggering.
Never move the convertible top when the
rollover protection system is raised.
No changes of any nature may be made to the
individual components of the rollover protec-
tion system and wiring.
Work on the rollover protection system may
only be performed at a BMW center. Unprofes-
sional attempts to service the system can lead
to failure or malfunction.
For a system check and to ensure long-term
functioning, you must comply with the mainte-
nance intervals of the service requirement dis-
play.<
Head-Up Display*
The concept
With the Head-Up Display important informa-
tion is projected into the driver's field of view,
e.g. navigation instructions. This enables you to
take in this information without looking away
from the road.
Switching on/off
Ignition key in position 2:
Press the button to activate or deactivate this
system.
1Navigation instructions
2Display
>Cruise control
>Active cruise control
3Speed

Controls
89Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Selecting displays
Control Center, for principle details, refer to
page16.
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.
3.Select "Display settings" and press the
controller.
4.Select "Head-Up Display selection" and
press the controller.
5.Select desired information of Head-Up Dis-
play.
6.Press the controller.
The information appears on the Head-
Up Display.
The setting is stored for the remote control cur-
rently in use.
Adjusting brightness
The brightness of the display is automatically
adapted to the ambient lighting conditions.
However, you can change the base setting.
With the low beams switched on, the brightness
can also be adjusted with the serrated dial of the
instrument lighting.Control Center, for principle details, refer to
page16.
1.Open the menu.
2.Select "Display settings" and press the
controller.
3.Select "Brightness" and press the control-
ler.
4.If necessary, move the controller to the left
to select "Head-Up Display Offset".
5.Turn the controller until the desired setting
is selected.
The setting is stored for the remote control cur-
rently in use.
Notes
The discernibility of the displays in the Head-Up
Display is influenced by:
>Sunglasses with certain polarization filters
>Certain seating positions
>Objects on the cover of the Head-Up Dis-
play
>Wet road surface and unfavorable lighting
conditions
If the image is distorted, please have the base
setting checked at a BMW center.
Special windshield
The windshield is part of the system. The shape
of the windshield complies with the require-
ments of the Head-Up Display to enable a pre-
cise display. A film in the windshield prevents
the double images from being displayed.
Only have a windshield replaced by a BMW cen-
ter or a workshop which works with personnel
trained in accordance with BMW specifications.

Technology for comfort, convenience and safety
90
Care instructions
You can find everything you need to know on
this topic by consulting the Caring for your vehi-
cle brochure.
Only clean the cover of the Head-Up Dis-
play with a soft, nonabrasive cloth or a
display cleaning cloth, as otherwise damage
may result.<

Controls
91Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Lamps
Parking lamps/low beams
0Lights off
1Parking lamps
2Low beams/daytime driving lamps
*
3Automatic headlamp control/
Adaptive Head Light
*
Parking lamps
In the switch position1, the front, rear and side
vehicle lighting is switched on. You can use the
parking lamps for parking. For lighting on one
side for parking as an additional feature, refer to
page92.
Low beams
The low beams light up in switch position2 only
with the engine running. Otherwise the parking
lamps are lit.
Pathway lighting
After parking the vehicle and switching off the
headlamps, operating the headlamp flasher
activates the low beams. You can set the dura-
tion on the Control Display or deactivate the
function.
Control Center, for principle details, refer to
page16.
1.Open the menu.
2.Select "Vehicle settings" and press the
controller.3.Select "Light" and press the controller.
4.Select "Pathway lighting" and press the
controller.
5.Turn the controller to select the corre-
sponding duration.
6.Press the controller to apply the setting.
Lights on warning
If you turn the ignition key to position 0, an
acoustic signal sounds when you open the
driver's door for a few seconds to remind you
that the lamps have not yet been switched off.
At the same time a message appears on the
Control Display.
Daytime driving lamps*
If you wish, you can leave the light switch in
position2.
Always observe all applicable laws governing
the use of daytime driving lamps.
You can switch on the parking lamps when
needed using the standard procedure
described under Parking lamps.
Automatic headlamp control
In switch position3 the low beams are automat-
ically switched on or off depending on the ambi-
ent light, e.g. in a tunnel, at dawn/dusk in the
rain or snow, and the Adaptive Head Light
* is
active. The LED next to the symbol is illumi-
nated when the low beams are on.

Lamps
92 The low beams remain on independent of
the ambient lighting conditions when you
switch on the fog lamps.
With the daytime driving lamps activated, the
low beams are always switched on in this switch
position with the ignition key in position 2.<
The automatic headlamp control cannot
serve as a substitute for your personal
judgment in determining when the lamps
should be switched on in response to ambient
lighting conditions. For example, the system
cannot detect fog. To avoid safety risks, you
should always switch on the lamps manually
under these conditions.<
Adaptive Head Light*
The concept
Adaptive Head Light is a variable headlamp
control system that enables better illumination
of the road surface. Depending on the steering
angle and other assumptions, the light from the
headlamp follows the course of the road.
Activating Adaptive Head Light
In switch position3 the Adaptive Head Light is
active and the automatic headlamp control is
switched on.
To avoid blinding oncoming traffic, the Adaptive
Head Light
>is not active when driving in reverse
>i s o n l y a c t i v e t o w a r d p a s s e n g e r ' s s i d e w h e n
stationary
Malfunction
The LED beside the symbol for automatic head-
lamp control flashes. The Adaptive Head Light
is malfunctioning or has failed. Have the system
checked as soon as possible.
High beams/
roadside parking lamps
1High beams
2Headlamp flasher
3Roadside parking lamps
Roadside parking lamps, left or right*
You also enjoy the option of lighting up just one
side of your vehicle when parking. When using
this function, comply with national regulations:
With the ignition switched off, press the lever in
the desired direction3, past the resistance
point.
The roadside parking lamps drain the bat-
tery. Avoid using for longer periods, as
otherwise it may not be possible to start the
engine.<
Fog lamps
The parking lamps or low beams must
be switched on for the fog lamps to
operate. The green indicator lamp in
the instrument cluster lights up when the fog
lamps are switched on.

Controls
93Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
The fog lamps are switched off whenever the
high beams are switched on.
If the automatic headlamp control is acti-
vated, the low beams will come on auto-
matically when you switch on the fog lamps.<
Instrument lighting
The lighting intensity can be adjusted with the
serrated dial.
Interior lamps
Control of the interior lamps, footwell lamps,
door entry lighting, courtesy lamps
* and sill
panel lighting
* is automatic.
Switching the interior lamps on and off
manually
Press button 1.
If you want the interior lamps to remain off con-
tinuously, maintain pressure on the button for
approx. 3 seconds.
To revert to normal operation, briefly press the
button.
Reading lamps
The reading lamps are beside the interior lamp.
You can turn them on and off using the
buttons2 located next to the lamps.
To avoid draining the battery, all of the
vehicle's interior lamps are automatically
switched off approx. 15 minutes after the igni-
tion is switched off.<

A congenial climate
94
A congenial climate
1Airflow directed toward the windshield and
side windows
2Air for the upper body area, refer to
Ventilation on page97
3Air to footwell
4Temperature, left side of passenger
compartment
5Maximum cooling
6Defrosting windows and removing
condensation
7Air volume, manual
8Switching off automatic climate control9Switching cooling function on and off
manually
10Temperature, right side of passenger
compartment
11Residual heat mode
12AUTO program
13AUC automatic recirculated-air control/
recirculated air mode
14LED for independent ventilation
15Rear window defroster
Convertible: only active when rear window
is closed
16Air grill for interior temperature sensor –
please keep clear and unobstructed

Controls
95Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
The current setting for air distribution is dis-
played on the Control Display.
A congenial climate
For almost all conditions, the AUTO program
offers the optimal air distribution and air vol-
ume. Select an interior temperature you find
pleasant.
The following section contains more detailed
information on the available setting options.
AUTO program
The AUTO program handles the
adjustment of air distribution to the
windshield and side windows, in
the direction of the upper body, and in the foot-
well, as well as the adjustment of the air volume.
It also adapts your instructions for the tempera-
ture to outside influences throughout the year.
The cooling is switched on automatically with
the AUTO program. At the same time, a con-
densation sensor controls the program in such
a way that window condensation is prevented
as much as possible.
Temperature adjustment
By rotating, you can set a desired
temperature for the driver's side
and the passenger side.
After you start to drive, this system
ensures that the selected temperature is
achieved as quickly as possible. It then main-
tains this temperature, regardless of the sea-
son.
Defrosting windows and removing
condensation
This program quickly removes ice
and condensation from the wind-
shield and front side windows.
Air volume, manual
You can adjust the air volume by
turning. You can reactivate the
automatic mode for the air volume
with the AUTO button.
Switching cooling function on and off
manually
The cooling function cools and
dehumidifies the incoming air
before reheating it as needed
according to the temperature setting. Depend-
ing on the weather, the windshield may fog over
briefly when the engine is started.
The air conditioner can operate only when the
engine is running. The AUTO program auto-
matically switches on the air conditioner.
Maximum cooling
This program quickly provides
maximum cooling.
The system switches to the recir-
culated-air mode and the air flows
at maximum air volume only from the vent out-
lets for the upper body area. For this reason you
should ensure that these vent outlets are open
before selecting this program.
AUC automatic recirculated-air
control/recirculated air mode
You can respond to unpleasant
odors or pollutants in the immedi-
ate environment by temporarily
suspending the supply of outside air. The sys-
tem then recirculates the air currently within the
vehicle. In AUC mode, a sensor detects pollut-
ants in the outside air and controls the shut-off
automatically.
Press the button repeatedly to run through the
following control sequence:
>LED off: outside air flows into the vehicle
continuously.
>Right LED on, AUC mode: the system
detects pollutants in the outside air and
responds by blocking the supply of outside
air when required.
>Left LED on, recirculated-air mode: the
supply of outside air into the vehicle is shut
off continuously.
If condensation starts to form on the
inside window surfaces during operation
in the recirculated-air mode, you should switch