2004 BMW 645CI COUPE&CONVERTIBLE climate control

Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Contents
The fastest way to find specific topics is
to use the index, refer to page 197.
Using this Owner's Manual
4Notes
7Reporting safety defects
At a glance
10Cockpit
16Control Center
20Voice command system
Controls
26Opening and closing
42Adjustments
51Transporting children safely
54Driving
64Everything under control
75Technology for comfort, convenience
and safety
85Lamps
88A congenial climate
94Practical interior accessories
Driving tips
102Things to remember when driving
Navigation
108Starting navigation system
110Destination entry
118Destination guidance
122What to do if …
Entertainment
126On/off and tone
130Radio
137CD player and CD changer
Communications
144Telephoning
155TeleService, BMW Assist
Mobility
162Refueling
164Wheels and tires
170Under the hood
174Maintenance
176Rules and regulations
178Replacing components
183Giving and receiving assistance
Reference
190Technical data
194Short commands of the
voice command system
197Everything from A to Z

At a glance
15Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
1Coupe: glass roof, electric with raise
function35
2Microphone for portable phone146
Convertible: microphone on steering
column
*
3Reading lamps87
4Interior lamps87
5Microphone for voice command
system20
Convertible: microphone on steering
column
*
6Coupe: initiating an emergency
call183
7Convertible: initiating an emergency
call183
8Control Display16
Displays for menu guidance
9Hazard warning flashers
10Central locking system29
11Automatic climate control8812Button for
>Station scan126
>Track scan138
13Ejecting
>Navigation DVD108
>Audio CD126
14Drive for navigation DVD108
15Drive for audio CD126
16Switching sound output for Entertain-
ment on/off and adjusting the
volume126
18Bracket for cup holder97
19Controller16
Horizontal movement in four directions,
turn or press
20Activating voice command system20
21Opening the start menu on the
Control Display17
22Dynamic Driving Control59 Temperature setting,
left/right89
Automatic air distribution and
volume89
Cooling function89
AUC Automatic recirculated-air
control89
Maximum cooling89
Residual heat mode90
Switching off automatic climate
control90
Air volume89
Defrosting windows89
Rear window defroster88
17
Heated seats47
PDC Park Distance Control75
DSC Dynamic Stability
Control77
Convertible: opening the
convertible top38
Convertible: closing the
convertible top38

Control Center
16
Control Center
The Control Center groups the functions of
a large number of switches. This means
that these functions can be operated from
a central position. The following section
provides an introduction to the principle of
the menu guidance. How you control the
individual functions is described in the con-
text of the relevant equipment.
Controls
1Controller: you navigate through the
menus of the Control Center and make
adjustments by turning, pressing and
moving it to the left, right, forwards or
backwards
2The start menu can be opened from any
menu with this button
3Control Display
When you turn the controller, you feel a
clicking. This helps you to select the
desired menu item.To avoid posing an unnecessary haz-
ard due to inattention, both to your
own vehicle's occupants and to other road
users: never attempt to use the controls or
make entries unless traffic and road condi-
tions allow.<
Menu overview
You can call up all the functions in the
Control Center using five menu items.
Communication
>Portable phone
>BMW Assist or TeleService.
Navigation or onboard information
>Navigation system
>Onboard information, e.g. for display of
the average fuel consumption.
Entertainment
>Radio
>CD player and CD changer.
Climate
>Air distribution
>Independent ventilation.
menu
>Switching off the Control Display
>Traffic information
>Tone and display settings
>Settings for your vehicle, e.g. for central
locking or settings for entertainment or
your portable phone
>Display of the maintenance requirement
and dates for statutory emission and
vehicle inspections.

At a glance
17Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Menu guidance
As of ignition key position 1, the following
message appears on the Control Display:
Confirm the message by pressing the con-
troller; the start menu is opened.
Start menu
Via the start menu, you can open four
menus by moving the controller to the left,
right, forwards or backwards. Pressing the
controller opens the menu.
Opening start menu
Press button.
To open the start menu from the menu:
Press the button twice.
Displays in menu
1In menus, you can change fields to
select the menu items they contain or to
make adjustments. The active field is
brighter than the others
2Menu items are usually grouped in hor-
izontal or vertical lists
3Arrows indicate that other menu items
can be selected in lists, but these are
not visible at the moment
4Adjustments are displayed in diagrams
or as numbers
5A symbol indicates the last selected
menu item of the start menu:
Communication
Navigation or
onboard information
Entertainment
Climate
menu

Opening and closing
32 If special circumstances should make it
absolutely necessary to operate the vehicle
with the lid open:
1.Coupe: close both windows as well as
the glass roof
Convertible: with closed top, close all
windows
2.Adjust the automatic climate control to
supply a high air volume, refer to
page 89.
Luggage compartment
There are four lashing eyes on the inner
corners of the luggage compartment for
securing luggage nets or securing straps to
fix luggage in position.
Also refer to Cargo loading, page 104.
Convertible: increasing luggage
compartment capacity
With the convertible top closed, you can
enlarge the luggage compartment capac-
ity:
To do so, unfold the handle and press it
downwards in the direction of travel, refer
to arrow. This folds the convertible top
compartment floor upwards.
Before opening the convertible top, run this
procedure in reverse order.
The convertible top cannot be
opened if the convertible top com-
partment floor is folded up.<
Alarm system
The concept
The vehicle alarm system responds:
>When a door, the hood, or the luggage
compartment lid is opened
>To movement in the vehicle interior:
interior motion sensor
>To changing of the vehicle's tilt if some-
one attempts to steal the wheels or tow
the vehicle
>To interruption of battery voltage.
The system responds to unauthorized vehi-
cle entry and attempted theft by simulta-
neously activating:
>An acoustic alarm, which lasts for a
period of approx. 30 seconds
>The hazard warning flashers for approx.
5 minutes
>The high beams, which flash on and off
in the same rhythm.
Arming and disarming alarm system
When you lock or unlock the vehicle, either
with the remote control or at the door lock,
the alarm system is armed or disarmed at
the same time.
The system indicates that it has been cor-
rectly armed by switching on the hazard
warning flashers for a single cycle and by
emitting an acoustic signal.
You can also open the luggage compart-
ment lid with the system armed using but-
ton on the remote control, refer to
page 28. When you close the lid, it is
secured again.
Switching off alarm
>Unlock the vehicle using the remote
control, refer to page 27
>or turn the ignition key to position 1.

A congenial climate
88
A congenial climate
1Airflow directed toward the windshield
and side windows
2Air for the upper body region
The serrated dials allow you to open
and close the air supply vent outlets
through an infinitely-variable range.
The levers change the direction of the
airflow. You can find more information
on adjusting for draft-free ventilation on
page 92
3Air to footwell
4Setting the temperature, left side of
passenger compartment
5Maximum cooling6Defrosting windows and removing
condensation
7Adjusting the air volume manually
8Switching off automatic climate control
9Switching cooling function on and off
manually
10Setting the temperature, right side of
passenger compartment
11Residual heat mode
12AUTO program
13Outside air/AUC Automatic recircu-
lated-air control/recirculated air

Controls
89Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
14Indicator lamp for independent ventila-
tion
>Activation time set:
The indicator lamp comes on
>Independent ventilation switched on:
The indicator lamp flashes
15Rear window defroster
16Air grill for interior temperature sensor –
please keep clear and unobstructed
All other setting options for the automatic
climate control can be found at "Climate"
and in the menu on the Control Display,
refer to pages 90 and 91.
The current setting for air distribution is dis-
played on the Control Display.
A congenial climate
To use the automatic function, press the
AUTO button. Select an interior tempera-
ture you find pleasant.
The following section contains more
detailed information on the available set-
ting options.
The cooling function is only possible with
the engine running.
AUTO program
The AUTO program adjusts the
air distribution to the wind-
shield and side windows,
towards the upper body and footwell as
well as the air volume, while also using your
preselected temperature setting as the
basis for adjusting the interior climate to
adapt to external seasonal influences.
The cooling function comes on automati-
cally when you select the AUTO program.
At the same time, a condensation sensor
controls the program in such a way that
window condensation is prevented as far
as possible.
Temperature adjustment
The figures on the display pro-
vide a general indication of inte-
rior temperature. A pleasant
adjustment is 727/226.
When you start the vehicle, this system ensures that the selected tempera-
ture is achieved as quickly as possible. It
then maintains this temperature, regard-
less of the season.
Defrosting windows and removing
condensation
This program quickly removes
ice and condensation from the
windshield and front side win-
dows.
Adjusting air volume manually
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 also reheating it as
required, according to the temperature set-
ting. Depending on the weather, the wind-
shield may fog over briefly when the engine
is started.
The cooling function comes on automati-
cally when you select the AUTO program.
Maximum cooling
This program quickly provides
maximum cooling.
The system switches to the
recirculated-air mode and the
air flows at maximum air volume only from
the vent outlets for the upper body area.
For this reason you should ensure that
these vent outlets are open before select-
ing this program.
AUC Automatic recirculated-air
control
You can respond to unpleasant
odors or pollutants in the imme-
diate environment by tempo-
rarily suspending the supply of outside air.
The system then recirculates the air cur-

A congenial climate
90 rently within the vehicle. AUC executes this
function automatically.
Press the button repeatedly to run through
the following control sequence:
>Indicator lamps off: outside air flows
into the vehicle continuously
>Right indicator lamp on, AUC mode: the
system detects pollutants in the outside
air and responds by blocking the supply
of outside air when required.
Depending upon air quality require-
ments, in the automatic mode the sys-
tem alternates between its outside-air
and recirculated-air modes
>Left indicator lamp on, recirculated-air
mode: the supply of outside air into the
vehicle is continuously blocked.
If condensation starts to form on the
inside window surfaces during opera-
tion in the recirculated-air mode, you
should switch it off while also increasing
the air volume as required.
The recirculated-air mode should not be
used over a longer period of time, as the air
quality inside the vehicle deteriorates con-
tinuously.<
Residual heat mode
If you press this button with the
engine switched off, the system
uses the warmth stored in the
engine to heat the interior, for
instance, while the vehicle is
stationary at a school to pick up a child.
You can adjust the automatic climate con-
trol settings as of ignition key position 2.
Provided that the engine has warmed to its
normal operating temperature and the bat-
tery is charged, you can use this function
for up to 15 minutes after switching off the
ignition. The LED within the button lights up
to confirm compliance with both of these
conditions.
Switching off automatic climate
control
The air volume, the heater and
the cooling function are all
switched off. You can restart
the automatic climate control
by pressing any of its buttons
except the REST button.
Settings using Control Center
Ignition key:
>On vehicles with separate drives for
audio CDs and navigation DVDs, igni-
tion key in position 2
>On vehicles with one drive for audio
CDs, ignition key in position 1.
Control Center, for principle details, refer to
page 16:
1.Press button.
The start menu is opened
2.Move the controller to the left to open
"Climate".
You can set the following:
>Separate air distribution for driver and
front passenger
>Adapting the temperature in the upper
body region
>Intensity of the AUTO program.
Manual air distribution
You can combine your air distribution your-
self and also individually adjust the air tem-
perature in the upper body area.