2004 BMW 645CI COUPE&CONVERTIBLE load capacity

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.

Things to remember when driving
104
Mobile communication devices in
vehicle
BMW advises against using mobile
communication devices, e.g. portable
phones, in the inside of the vehicle without
a direct connection to an external antenna.
Otherwise, the vehicle electronics and
mobile communication device can influ-
ence one another. It is not ensured that the
waves emitted during transmission are led
out of the vehicle interior.<
Cargo loading
To avoid loading the tires beyond
their approved carrying capacity,
never overload the vehicle. Overloading
can lead to overheating and increases the
rate at which damage develops inside the
tires. The ultimate result can assume the
form of a sudden air loss.<
Determining loading limit
1.Locate the following statement on your
vehicle's placard
*:
The combined weight of occu-
pants and cargo should never
exceed XXX lbs. or YYY kg, as other-
wise the vehicle may be damaged and
unstable driving conditions may
result.<
2.Determine the combined weight of the
driver and passengers that will be riding
in your vehicle
3.Subtract the combined weight of the
driver and passengers from XXX lbs. or
YYY kg4.The resulting figure equals the available
amount of cargo and luggage load
capacity.
For example, if the XXX amount equals
1400 lbs. and there will be five 150-lbs.
passengers in your vehicle, the amount
of available cargo and luggage load
capacity is 650 lbs.:
1400 lbs. minus 750 lbs. = 650 lbs.
5.Determine the combined weight of lug-
gage and cargo being loaded on the
vehicle. That weight may not safely
exceed the available cargo and luggage
load capacity calculated in step 4
6.If your vehicle will be towing a trailer,
part of the load from your trailer will be
transferred to your vehicle. Consult the
manual for transporting a trailer to
determine how this may reduce the
available cargo and luggage load
capacity of your vehicle.
Load
The permitted load is the total of the weight
of occupants and cargo/luggage. The
greater the weight of occupants, the less
cargo/luggage can be transported.

Technical data
190
Technical data
Engine specifications
Weights
Never exceed either the approved
axle loads or the gross vehicle weight.
645Ci
Displacement
Number of cylinderscu in/cmm268.4/4,398
8
Maximum output
at engine speedhp
rpm325
6,100
Maximum torque
at engine speedlb ft/Nm
rpm 330/450
3,600
645Ci Coupe 645Ci Convertible
Curb weight
with manual transmission
with automatic transmission / SMGlbs./kg
3,781/1,715
3,792/1,7204,178/1,895
4,189/1,900
Approved gross weight
with manual transmission
with automatic transmission / SMGlbs./kg
4,619/2,095
4,630/2,1004,960/2,250
4,971/2,255
Load lbs./kg 838/380 772/350
Approved front axle load lbs./kg 2,271/1,030 2,381/1,080
Approved rear axle load lbs./kg 2,513/1,140 2,381/1,080
Luggage compartment capacity
Convertible: with convertible top com-
partment floor up, refer to page 32cu ft/l 15.9/450
–10.6/300
12.4/350

Reference 203
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Gear display
– automatic transmission
with Steptronic 58
– SMG Sequential manual
transmission 57
Gearshift lever
– automatic transmission
with Steptronic 58
– manual transmission 56
– SMG Sequential manual
transmission 56
General driving notes 102
Glass roof, electric with
raise function 35
– closing in the event of an
electrical malfunction 36
– convenience operation 29
– remote control 27
Glove compartment 95
GPS navigation, refer to
Navigation system 108
Grills, refer to
Ventilation 88
Gross vehicle weight, refer
to Weights 190
H
Handbrake 55
– indicator lamp 13, 55
Hands-free system 14, 146
Hazard warning flashers 15
Head airbags 81
Headlamp control,
automatic 85
Headlamp flasher 60
Headlamps
– care, refer to the Caring
for your vehicle brochure
– cleaning, refer to
Wiper system 61
– replacing the bulbs 178
Head Light, refer to
Adaptive Head Light 86
Head-Up Display 83
Heated mirrors 48
Heated rear window 89
Heated seats 47
Heated steering wheel 49Heating
– exterior mirrors 48
– interior 88
– rear window 89
– residual heat mode 90
– seats 47
– steering wheel 49
Heating with engine
switched off, refer to
Residual heat mode 90
Heavy cargo, refer to
Securing the load 105
Height, refer to
Dimensions 191
Height adjustment
– seats 43
– steering wheel 48
High beams 86
– headlamp flasher 86
– indicator lamp 13
– replacing the bulbs 178
Hills 103
Holder for cups 97
Horn 10
Hotel function 30
Hot exhaust system 102
"Hour memo" 73
"House number" for desti-
nation entry 111
Hydraulic Brake Assistant,
refer to DBC Dynamic
Brake Control 78
Hydroplaning 102
– also refer to Minimum
tread depth 167
I
Ice warning 64
iDrive, refer to
Control Center 16
Ignition key 26
Ignition key positions, refer
to Ignition lock 54
Ignition lock 54
Increasing luggage
compartment capacity,
Convertible 32Independent ventilation
– activating activation
timer 93
– setting the activation
time 93
– switching on and off
directly 92
Indicator/warning lamps
– ABS Antilock Brake
System 13, 78
– active steering 13, 80
– airbags 13, 82
– brake system 13, 78
– DSC Dynamic Stability
Control 13, 77
– DTC Dynamic Traction
Control 13, 77
– fastening safety
belts 13, 47
– Flat Tire Monitor 80
– fog lamps 11, 86
Indicator and warning
lamps, overview 13
Individual button
assignment options on
the steering wheel 49
Individual settings, refer to
Key Memory 26
Inflation pressure, refer to
Tire inflation
pressure 164
Inflation pressure
monitoring, refer to Flat
Tire Monitor 79
Information
– on another location 113
– on current location 113
– on destination
location 113
"Information" for
navigation 113
"Information on
destination" 114
Initiating an emergency
call 183
"Input map" 112
Installation location
– CD changer 140
– portable phone 145

Everything from A to Z
204 Instructions for navigation
system, refer to
Voice instructions 119
Instrument cluster 12
Instrument illumination,
refer to Instrument
lighting 87
Instrument lighting 87
Instrument panel, refer to
Instrument cluster 12
Instrument panel lighting,
refer to Instrument
lighting 87
Integrated universal remote
control 94
Interesting destination 113
"Interim time" 72
Interior lamps 87
– remote control 28
Interior mirror, automatic
dimming feature 48
Interior rearview mirror 48
Interlock, refer to
Steering locked 54
Interlock on automatic
transmission 54
Intermittent mode of the
wipers 61
J
Jacking points 181
Joystick, refer to
Control Center 16
Jump-starting 184
K
Key Memory 26
"Keypad" 150
Keys 26
Kickdown
– automatic transmission
with Steptronic 59
– SMG Sequential manual
transmission 57
Knock control 163
L
Lamps, refer to Parking
lamps/low beams 85
Lamps and bulbs 178
"Languages" 73
– for navigation 119
Lashing down loads, refer
to Securing the load 105
Lashing eyes, refer to
Securing the load 105
Last destinations, refer to
Destination list 113
"Last seat pos." 44
LATCH child-restraint
fixing 52
LEDs light-emitting
diodes 181
Length, refer to
Dimensions 191
Letter symbol with portable
phone 150
License plate lamps,
replacing bulbs 180
Light-emitting diodes
LEDs 181
Lighter 97
Lighter socket 97
"Lighting" 60, 85
Lighting
– instruments 87
– vehicle, refer to Lamps 85
Lights on warning 85
Light switch 85
"Limit" 71
Loading
– securing the load 105
– stowing cargo 105
– vehicle 104
Location, navigation
drive 108
"Lock after driving" 29
Lock buttons in the doors,
refer to Locking 30
Locking
– from inside 30
– from outside 28
Locking and unlocking
doors
– from inside 29
– from outside 27"LOGIC7", refer to
Adjusting the tone 128
Low beams 85
– automatic 85
– replacing the bulbs 178
Lower back support, refer
to Lumbar support 43
Luggage compartment
– capacity 190
– emergency release 31
– hotel function 30
– increasing the capacity,
Convertible 32
– opening/closing, refer to
Luggage compartment
lid 31
– opening from inside 31
– opening from outside 31
– opening with remote
control 28
Luggage compartment
lid 30
– emergency operation 31
– emergency release 31
– opening from inside 31
– opening from outside 31
– opening with remote
control 28
– unlocking manually 31
Lumbar support 43
LW, waveband 130
M
M+S tires, refer to
Winter tires 169
Maintenance, refer to the
Service and Warranty
Information Booklet for
US models or to the
Warranty and Service
Guide Booklet for
Canadian models 174
Maintenance system 174
Malfunction warnings, refer
to Check Control 66
Manual air distribution 90
Manual mode with
automatic transmission
with Steptronic 59
"Manual" on the radio 131

Reference 209
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Starting difficulties
– jump-starting 184
– refer to Starting engine 54
Starting engine 54
Start menu 17
"Start route guidance" 112
"Start service" 157
"State / Province" for desti-
nation entry 110
"State inspection" 66
Station, refer to Radio 130
"Status" 65
Status of this Owner's
Manual at time of
printing 5
Steering wheel 11
– adjustment 48
– automatic adjustment 49
– buttons on steering
wheel 11
– heating 49
– individual button
assignment options 49
– memory 44
"Steering wheel
buttons" 49
Steering with variable ratio,
refer to Active steering 80
Steptronic, refer to
Automatic transmission
with Steptronic 58
"Stop" for stopwatch 72
"Stopwatch" 72
Stopwatch 72
Storage compartments 96
"Store in address book" for
navigation 114
"Store" on the
radio 132, 135
Storing current
position 114
Storing sitting position,
refer to Seat, mirror and
steering wheel
memory 44
Storing tires 169
Straps, refer to
Loading 105
"Street" for destination
entry 111Stroke, refer to
Engine data 190
Summer tires, refer to
Wheels and tires 164
SW, waveband 130
Switches, refer to
Cockpit 10
Switching navigation voice
instructions on/off 119
Switching off
– engine 55
– interior motion sensor 33
– tilt alarm sensor 33
Switching on
– audio 126
– CD changer 126
– CD player 126
– portable phone 145
– radio 126
Switching on hour signal 73
Switching the cooling
function on and off 89
Swiveling headlamps, refer
to Adaptive Head Light 86
Symbols 4
T
Tachometer 64
Tail lamps 180
– replacing the bulbs 180
Tank capacity, refer to
Fuel tank capacity 162
Target cursor for
navigation 112
Technical changes, refer to
For your own safety 6
Technical data 190
Telematic 155
Telephone
– refer to Portable
phone 144
– refer to separate
Owner's Manual
TeleService 155
– enabling 155
– services offered 156
Temperature
adjustment 89Temperature display
– ice warning 64
– outside temperature 64
– setting measurement
units 64
Temperature gauge,
engine oil 65
Tempomat, refer to
Cruise control 62
"Terminate services" 158
"Text language" 73
The individual vehicle 5
Tilt function, passenger-
side mirror 45
"Time" 73
"Time 1" for independent
ventilation 93
"Time 2" for independent
ventilation 93
"Time format" 73
Timer, refer to Preselecting
activation time 93
Tire pressure monitoring,
refer to Flat Tire
Monitor 79
Tire Quality Grading 166
Tires
– age 166
– air loss 80
– break-in procedure 102
– changing 168
– condition 167
– damage 167
– flat 168
– inflation pressure 164
– new wheels and tires 168
– pressure monitoring, refer
to Flat Tire Monitor 79
– replacing 168
– retreaded tires 168
– run-flat tires 168
– size 168
– tread 167
– wear indicators 167
– wheel/tire
combination 168
– winter tires 169
"Tone" 128
Tone in audio mode
– adjusting 127
– middle setting 129