2005 BMW 645CI CONVERTIBLE engine

Mobility
189Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
>When mounted at an angle, the tow bar will
exert lateral forces, tending to push the
vehicle sideways.
Secure the tow bar to the tow fitting only.
Otherwise to other vehicle parts could
result.<
With tow rope
When starting off in the towing vehicle, make
sure that the tow rope is taut.
To avoid jerking and the associated
stresses on vehicle components when
towing, always use nylon ropes or nylon straps.
Secure the tow rope to the tow fitting only. Oth-
erwise damage to other vehicle parts could
result.<
With tow truck
Have the BMW transported with a tow truck
with a so-called lift bar or on a load bed.
Do not lift vehicle by tow fitting or body
and chassis parts, as otherwise damage
may result.<
Tow-starting
Do not tow-start vehicles with an auto-
matic transmission.
Jump starting, refer to page186.<
Only tow-start vehicles with a catalytic con-
verter with the engine cold. It is better to jump
start the engine, refer to page186.
1.Switch on the hazard warning flashers,
comply with country-specific regulations.
2.Turn the ignition key to position 2.
3.Shift into 3rd gear, vehicles with SMG, see
below.4.Have the vehicle tow-started with the clutch
pedal completely depressed and slowly
release the clutch. After the engine starts,
immediately depress the clutch pedal com-
pletely again.
5.Stop at a suitable location, remove the tow
bar or rope and switch off the hazard warn-
ing flashers.
6.Have the vehicle checked.
Vehicles with SMG Sequential manual trans-
mission:
1.Tow-start in selector lever position N.
2.Select sequential mode. The correct gear
will be selected and engaged automatically.

Technical data
192
Technical data
Engine specifications
Weights
Never exceed either the approved axle loads
or the gross vehicle weight.
645Ci
Displacement
Number of cylinderscu in/cmµ268.4/4,398
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 2,778/1,260
Luggage compartment capacity
Convertible: with convertible top com-
partment floor up, refer to page34cu ft/l 15.9/450
–10.6/300
12.4/350

Reference 195
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Capacities
Notes
Fuel tank
Reservegal/liters
gal/litersapprox. 18.5/70
approx. 2.1/8Fuel specification: page167
Window and headlamp washer
system quarts/liters approx. 5.3/5For details: page61
Engine oil and filter change quarts/liters 8.5/8 BMW High Performance
Synthetic Oil
Oil grades: page176

Everything from A to Z
200 Audio132
– controls132
– switching on/off132
– tone control133
– volume133
Automatic
– air distribution95
– air volume95
– cruise control61,62
– headlamp control91
– service notification160
– steering wheel adjustment,
refer to Easy entry/exit50
– storing stations138
Automatic car washes110
– also refer to the Caring for
your vehicle brochure
Automatic climate control94
– automatic air distribution95
– convertible program97
– settings using Control
Center96
– switching off96
Automatic curb monitor47
"Automatic programs"97
Automatic recirculated-air
control AUC95
Automatic station search137
Automatic transmission with
Steptronic58
– convenience start55
– Dynamic Driving Control59
– interlock54
– kick-down58
– selector lever interlock58
– shiftlock58
– starting engine55
– towing188
– tow-starting189
"Automatic ventilation"98
AUTO program with
automatic climate control95
"Autostore" on the
radio136,138
Average fuel consumption74
– setting units77
Average speed74"Avoid ferries" for
navigation123
Avoid freeways for
navigation122
"Avoid highways" for
navigation122
Avoiding unintentional
alarms35
"Avoid tollroads" for
navigation123
Axle loads, refer to
Weights192
"A - Z"153
B
Backrests, refer to Seats44
Backup lamps, refer to
Reverse gear56
Balance, refer to Tone
control134
Balance adjustment in audio
mode, right/left134
Bandages, refer to First-aid
kit186
"Bass", refer to Tone
control134
Bass, refer to Tone
control133
Battery
– jump starting186
– refer to Vehicle battery183
Being towed188
Belts, refer to Safety belts48
Beverage holder, refer to Cup
holders103
Black ice, refer to Ice
warning69
Blower, refer to Air volume95
BMW Assist159
– enabling159
– services offered160
BMW maintenance
system178
"BMW Service"161
"BMW Service settings"159
Bottle holder, refer to Cup
holders103Brake Assistant, refer to DBC
Dynamic Brake Control81
Brake fluid177
– warning lamp177
Brake Force Display86
Brake hydraulic system177
Brake lamps
– Brake Force Display86
– replacing bulbs182
Brake pads177
– breaking-in108
Brake rotors110
Brakes109
– ABS Antilock Brake
System81
– brake fluid177
– Brake Force Display86
– brake pads108,177
– breaking-in108
– CBC Cornering Brake
Control81
– handbrake55
Brake system108
– brake fluid level177
– brake pads108,177
– brake rotors110
– breaking-in108
– warning lamp13,83,177
Brake wear warning
– brake pads177
Braking
– electronic brake-force
distribution81
– refer to Braking safely109
Breakdown assistance161
Breakdown services, refer to
Roadside Assistance186
Breaking-in108
– clutch108
– differential108
Break wear warning
– warning lamp177
"Brightness"77
Buttons on steering wheel11
Bypassing route sections128

Everything from A to Z
202 Cold start, refer to Starting
engine54
"Communication"152
"Communication
settings"159
Compact disc
– refer to CD changer143
– refer to CD player143
Computer74
– clock, 12h/24h clock
mode78
– displays on Control
Display74
– hour signal78
"Concert hall"135
Condition Based Service
CBS178
"Confirmation"30
Confirmation signals for
locking and unlocking30
Connecting a vacuum cleaner,
refer to Socket103
Consumption display, refer to
Average fuel
consumption74
"Continue guidance to
destination?"125
Control Center16
– adjusting brightness77
– assistance window20
– automatic climate control96
– changing settings19,77
– changing the menu page19
– changing time and date78
– confirming selection or
entry19
– controller16
– display, menus16
– language selection78
– menu item selection19
– menu navigation17
– operating elements16
– selecting units of
measurement and display
format77
– start menu17
– status information20
– symbols17
Control Display16Controller, refer to Control
Center16
Controls, refer to Cockpit10
Convenience operation
– convertible top30,31
– glass sunroof30,31
– windows30,31
Convenience start, refer to
Starting engine54,55
Convertible
– convertible program for
automatic climate control97
– opening and closing
windows36
– rollover protection
system87
– top39
– wind deflector42
Convertible top
– care, refer to the Caring for
your vehicle brochure
– convenience operation31
– emergency closing41
– manual closing in the event
of an electrical
malfunction41
– opening and closing40
Coolant176
– level176
Cooling, maximum95
Cornering Brake Control
CBC81
Country of destination for
navigation116
Courtesy lighting93
Cruise control61
– active cruise control62
Cruising range74
Cup holders103
Curb weight, refer to
Weights192
"Current position"125
Current position
– displaying125
– entering120
– storing120
"Customer Relations"162
Cylinders, refer to Engine
data192
D
Dashboard, refer to
Cockpit10
Dashboard lighting, refer to
Instrument lighting93
Data192
– capacities195
– dimensions193
– engine192
– weights192
"Date"79
Date69
– setting78
"Date format"79
Daytime driving lamps91
DBC Dynamic Brake
Control81
– malfunction83
– warning lamp83
"Deactivated"47
Deactivating front passenger
airbag, Coupe52
Decommissioning the vehicle,
refer to the Caring for your
vehicle brochure
Deep water, refer to Driving
through water109
Defrosting windows95
Defrosting windows and
removing condensation95
Defrosting windshield, refer to
Defrosting windows95
Defrost position, refer to
Defrosting windows95
"Delete address book" for
navigation121
"Delete all numbers" on the
portable phone155
"Delete data" for
navigation121
"Delete" for portable
phone154
Destination address
– deleting121
– entering115

Reference 203
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Destination for navigation
– destination list119
– entry115
– home address122
– selecting from address
book120
– selecting using
information118
– storing120
Destination guidance124
– bypassing route
sections128
– canceling voice
instructions51
– changing specified
route122
– displaying route127
– distance and arrival124
– interrupting125
– starting124
– terminating/continuing125
– voice instructions126
– volume of voice
instructions126
Destination list119
Destinations recently driven
to119
"Dial" for portable phone152
"Dial number"152
"Diamond button"51
Digital clock69
Dimensions
– Convertible194
– Coupe193
Dipstick for engine oil175
Directional indicators, refer to
Turn signals60
Direction announcements,
refer to Voice
instructions126
Direction instructions, refer to
Voice instructions126
Directory, refer to Phone
book153
Directory for navigation, refer
to Address book120
Disc brakes109Displacement, refer to Engine
data192
Display, refer to Control
Center16
"Display off"21
Displays, refer to Instrument
cluster12
"Display settings"77
Displays on the windshield,
refer to Head-Up Display88
Disposal, vehicle battery183
Distance, refer to
Computer75
Distance control, refer to
Active cruise control62
"Distance to dest."75
Distance to destination, refer
to Computer75
Distance warning, refer to
PDC Park Distance
Control80
Door entry lighting93
Door keys28
Door lock31
"Door locks"29
Doors
– manual operation31
– remote control30
DOT Quality Grades170
Draft-free ventilation97
"Driver's door only"29
Driving lamps, refer to Parking
lamps/low beams91
Driving notes108
Driving route, refer to
Displaying the route127
Driving stability control
systems82
Driving through water109
Driving tips, refer to Driving
notes108
Drying the air, refer to Cooling
function95
DSC Dynamic Stability
Control82
– indicator lamp13,83
– malfunction83DTC Dynamic Traction
Control82
– activating82
– indicator lamp13,82
DVD for navigation114
Dynamic Brake Control
DBC81
Dynamic Driving Control59
"Dynamic route" for
navigation122
Dynamic Stability Control
DSC82
– indicator lamp13,83
Dynamic Traction Control
DTC82
– indicator lamp13
E
Easy entry, refer to Entry to
the rear48
Easy entry/exit50
EBV, refer to Electronic brake-
force distribution81
"Edit address" for
navigation121
Eject button, refer to Buttons
on CD player132
Electrical malfunction
– convertible top41
– door lock31
– driver's door31
– fuel filler door166
– glass sunroof38
– luggage compartment lid33
– storage compartment, hotel
function32
Electric steering wheel
adjustment50
Electronic brake-force
distribution81
Emergency Assistance, refer
to Roadside Assistance186
Emergency call185

Everything from A to Z
204 Emergency operation, refer to
Manual operation
– convertible top41
– door lock31
– driver's door31
– fuel filler door166
– glass sunroof38
– luggage compartment
lid32,33
Emergency release33
Emergency services, refer to
Roadside Assistance186
"Emission inspect."71
"Enable services"160
"End call"153
Engine
– breaking-in108
– data192
– speed192
– starting54
– starting difficulties54
– switching off55
Engine compartment175
Engine coolant176
Engine oil
– checking the oil level175
– dipstick175
– specified engine oils176
– temperature70
– temperature gage70
– topping off176
Engine output, refer to Engine
data192
Engine speed, refer to Engine
specifications192
Engine starting, refer to
Starting engine54
"Enter address" for
navigation116
Entering destination116
Entering the address115
Entering the intersection117
Entering the town/city for
navigation116
Entering zip code for
navigation116
"Entertainment"133"Entertainment settings"133
Entry map for destination117
Entry to the rear48
"Equalizer", refer to Tone
control135
"ESN"140
ESP Electronic Stability
Program, refer to DSC
Dynamic Stability
Control82
Exhaust system, refer to Hot
exhaust system108
Exterior mirrors49
– automatic dimming
feature50
– automatic heating50
Eye for towing, refer to Tow
fitting188
Eyes for lashing, refer to
Securing load111
F
Fader, refer to Tone
control134
Failure messages, refer to
Check Control71
False alarms, refer to Avoiding
unintentional alarms35
Fastening safety belts, refer to
Safety belts48
Fastest route for
navigation122
Fast forward
– CD changer145
– CD player145
"Fast route" for
navigation122
First aid, refer to First-aid
kit186
First-aid kit186
First-aid pouch, refer to First-
aid kit186
Flashing when locking and
unlocking, refer to Setting
acknowledgement
signals30Flashlight, refer to
Rechargeable flashlight101
Flat tire
– Flat Tire Monitor84
– run-flat tires85,172
Flat Tire Monitor84
– false alarms84
– initializing system84
– malfunction85
– snow chains173
– system limits84
– warning lamp85
"FM", reception
range133,136
FM, waveband136
Fog lamps92
– indicator lamp13,92
Folding up convertible top
compartment floor,
Convertible34
Footbrake, refer to Braking
safely109
Footwell lamps93
For your own safety6
Front airbags86
Front head restraints47
"FTM"84
Fuel
– average consumption74
– display70
– fuel specifications167
– high-quality brands167
– quality167
– tank capacity166
Fuel display, refer to Fuel
gage70
Fuel filler door166
– releasing in the event of
electrical malfunction166
Fuel gage70
Fuel specifications167
Fuses184

Reference 205
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
G
Garage-door opener, refer to
Integrated universal remote
control100
Gasoline
– refer to Fuel
specifications167
– refer to Required fuel167
Gasoline display, refer to Fuel
gage70
Gear changes
– SMG Sequential manual
transmission57
Gear display
– automatic transmission with
Steptronic58
– SMG Sequential manual
transmission57
Gearshift lever
– automatic transmission with
Steptronic58
– manual transmission56
– SMG Sequential manual
transmission56
General driving notes108
Glass sunroof, electric with
raise function37
– convenience operation31
– moving manually38
– remote control30
Glove compartment101
– rechargeable flashlight101
GPS navigation, refer to
Navigation system114
Grills, refer to Ventilation94
Gross vehicle weight, refer to
Weights192
H
Handbrake55
– indicator lamp13,55
Hands-free system14,151
Hazard warning flashers15
Head airbags86
Headlamp control,
automatic91Headlamp flasher60
Headlamps
– care, refer to the Caring for
your vehicle brochure
– cleaning, refer to Wiper
system61
– replacing bulbs180
Head Light, refer to Adaptive
Head Light92
Head-Up Display88
Heated mirrors50
Heated rear window94
Heated seats49
Heated steering wheel51
Heater95
Heating
– exterior mirrors50
– interior94
– rear window94
– residual heat mode96
– seats49
– steering wheel51
Heating with engine switched
off, refer to Residual heat
mode96
Heavy cargo, refer to Securing
load111
Height, refer to
Dimensions193
Height adjustment
– seats45
– steering wheel50
High beams92
– headlamp flasher92
– indicator lamp13
– replacing bulbs180
Hills109
Holder for cups103
"Home address"122
Hood174
Horn10
Hotel function32
Hot exhaust system108
"Hour memo"78
"House number" for desti-
nation entry117Hydraulic Brake Assistant,
refer to DBC Dynamic Brake
Control81
Hydroplaning109
– also refer to Minimum tread
depth171
I
Ice warning69
iDrive, refer to Control
Center16
Ignition key28
Ignition key positions, refer to
Ignition lock54
Ignition lock54
Increasing luggage
compartment capacity,
Convertible34
Independent ventilation
– activating an activation
time98
– setting activation time98
– switching on and off
directly98
Indicator/warning lamps
– ABS Antilock Brake
System83
– active steering85
– airbags87
– brake system13,83
– DSC Dynamic Stability
Control13,83
– DTC Dynamic Traction
Control13,82
– fastening safety belts49
– Flat Tire Monitor85
– fog lamps13,92
– handbrake55
Indicator and warning lamps,
overview13
Individually assignable
buttons on steering wheel,
refer to Programmable
buttons on steering
wheel51
Individual settings, refer to
Key Memory28