2004 BMW 645CI COUPE&CONVERTIBLE change wheel

On/off and tone
126
On/off and tone
The following equipment has shared con-
trols and setting options:
>Radio Business
>CD player
>CD changer
*.
Controls
The audio sources can be operated using:
>Buttons on the CD player
>Control Center
>Buttons on the steering wheel, refer to
page 11.
Buttons on CD player
The layout of the buttons can vary depend-
ing on your vehicle's equipment.
Equipment with single drive:Equipment with two drives:
1Sound output for Entertainment on/off,
volume
>Press: switch on/off.
When you switch on, the last set
radio station or CD track is played
>Turn: adjust volume
2Drive for audio CD
3Eject CD
4Station scan/track scan
>Change radio station
>Select track for CD player and
CD changer
5Drive for navigation DVD
Operation using Control Center
Control Center, for principle details, refer to
page 16:
1.Press button.
The start menu is opened

Mobility
167Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Temperature
The temperature grades are A, the highest,
B, and C, representing the tire's resistance
to the generation of heat and its ability to
dissipate heat when tested under con-
trolled conditions on a specified indoor lab-
oratory test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudden tire failure. The grade C
corresponds to a level of performance
which all passenger car tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A repre-
sent higher levels of performance on the
laboratory test wheel than the minimum
required by law.
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive load-
ing, either separately or in combination,
can cause heat buildup and possible tire
failure.<
RSC – run-flat tires
You will recognize run-flat tires by a circular
symbol containing the letters RSC on the
side of the tire, refer to page 168.
M+S
Winter and all-season tires.
These have better winter properties than
summer tires.
Tire condition
Before driving off, inspect your tires for
tread wear, signs of damage and foreign
objects lodged in the tread, and check the
tread depth.
Minimum tread depth
The tread depth should not drop below
0.12 in/3 mm, although, for example, Euro-
pean legislation only specifies a minimum
tread depth of 0.063 in/1.6 mm. At tread
depths below 0.12 in/3 mm there is an increased risk of high-speed hydroplaning,
even when only small amounts of water are
present on the road surface.
As winter tires display a noticeable loss in
their ability to cope with cold-weather driv-
ing conditions once the tread wears to
below 0.157 in/4 mm, to ensure continued
safety you should always have such tires
replaced.
Wear indicators at the tread-groove base,
refer to arrow, are distributed over the tire's
circumference and are marked on the side
of the tire with TWI – Tread Wear Indicator.
These indicators signal at a tread depth of
0.063 in/1.6 mm that the legal wear limit
has been reached. The tread is then no
longer visible at these points.
Tire damage
Due to low-profile tires, please note
that wheels, tires and suspension
parts are more susceptible to road hazard
and consequential damages.
Unusual vibrations encountered during
normal vehicle operation can indicate tire
failure or some other vehicle defect. This
can, for example, be caused by driving over
curbs. These kinds of problems may also
be signaled by other changes in vehicle
response, such as a strong tendency to pull
to the left or right.
In these cases, immediately reduce speed.
Drive cautiously to the nearest BMW center
or tire dealer or, if necessary, have the
vehicle towed there.
Tire damage, extending to sudden and
complete loss of pressure in extreme
cases, can pose a potentially lethal safety
hazard for the vehicle's occupants and
other road users alike.<

Wheels and tires
168
Run-flat tires
You will recognize run-flat tires by a circular
symbol containing the letters RSC on the
side of the tire.
Run-flat tires consist of self-contained tires
and special rims. The tire reinforcement
ensures that the tire retains some residual
safety in the event of pressure drop and
driving remains possible to a restricted
degree.
Continuing driving with a damaged
tire
Driving on run-flat tires with tire damage
can continue, depending on the vehicle
load and the severity of the tire damage, at
a maximum speed of 50 mph/80 km/h.
You can estimate the possible mileage for
continued driving on the basis of the fol-
lowing general indications:
>With low load:
1 to 2 persons without luggage:
Approx. 155 miles/250 km
>With medium load:
2 persons, luggage compartment full, or
4 persons without luggage:
Approx. 94 miles/150 km
>With full load:
4 persons, luggage compartment full:
Approx. 30 miles/50 km.
Drive reservedly and do not exceed
a speed of 50 mph/80 km/h. In the
event of pressure loss, vehicle handling
changes. This includes reduced track sta-
bility in braking, extended braking distance
and altered natural steering characteristics.
If unusual vibrations occur while the vehicle
is being driven, this can indicate final failure of the damaged tire. Reduce speed and
stop as soon as possible. Do not continue
driving. Contact your BMW center.<
New wheels and tires
You can find out the right wheel-tire combi-
nation from your BMW center. It is another
vital factor in ensuring reliable operation of
various vehicle systems such as ABS and
DSC. Have the wheel and tire assemblies
balanced every time either a wheel or a tire
is replaced.
Only have new wheels and tires
mounted by a specialist. If this work is
performed inexpertly, there is a danger of
damage and associated safety risks.<
Retreaded tires
BMW does not recommend the use of
retread tires, as otherwise driving
safety may be reduced. Possible variations
in the design and the age – which could be
substantial – of the carcasses can lead to
unusually rapid wear.<
The right wheels and tires
BMW recommends that you use only
wheel and tire combinations that
BMW has tested and approved for your
particular vehicle. Variations in factors such
as manufacturing tolerances mean that
even wheels and tires with identical official
size ratings could actually have different
dimensions than the approved units – these
differences could lead to body contact, and
with it the risk of severe accidents. If non-
approved wheels and tires are used, BMW
cannot evaluate their suitability, and there-
fore cannot be held liable for driving
safety.<
To maintain good handling and vehicle
response, use only tires of a single tread
configuration from a single manufacturer.
After a flat tire, always remember to have
the specified wheel and tire combination
remounted on the vehicle as soon as pos-
sible.

Mobility
181Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
1.Push a screwdriver from the left under
the lamp and lever up the lamp to the
right
2.Turn the bulb holder 905 to the left and
remove
3.Remove and replace the bulb.
Light-emitting diodes LEDs
Light-emitting diodes installed behind
translucent lenses serve as the light source
for many of the controls and displays in
your vehicle. These light-emitting diodes,
which operate using a concept similar to
that applied in conventional lasers, are offi-
cially designated as Class 1 light-emitting
diodes.
Do not remove the covers, and never
stare into the unfiltered light several
hours, as irritation of the retina could
result.<
Changing a wheel
Your BMW is equipped with run-flat tires as
standard. An immediate wheel change in
the event of a flat tire is therefore no longer
required.
You will recognize run-flat tires by a circular
symbol containing the letters RSC on the
side of the tire, refer to Run-flat tires on
page 167.
If you switch from summer to winter tires,
or vice versa, use only run-flat tires, as in
the event of a flat there is no spare tire
available. Your BMW center will be glad to
advise you.
Also refer to New wheels and tires,
page 168.
Car jacking points
The jacking points for the car jack are
located in the positions shown.
You can obtain a suitable car jack as
an accessory at your BMW center.<
Battery
Battery care
The battery is 100 % maintenance-free, i.e.,
the electrolyte will last for the life of the bat-
tery when the vehicle is operated in a tem-
perate climate.
Your BMW center will be glad to advise in
all matters concerning the battery.
Charging battery
Only charge the battery in the vehicle via
the terminals in the engine compartment
with the engine switched off. For the con-
nections, refer to Jump-starting on
page 184.
Disposal
Have old batteries disposed of by
your BMW center or hand them in to a
recycling center. Maintain the battery in an
upright position for transport and storage.
Always restrain the battery to prevent it
from tipping over during transport.<
Power cut
After a temporary power cut, e.g. with a
discharged battery, the features of some
equipment are limited and it has to be rein-
itialized. Individual settings are also lost
and have to be updated:

Reference 199
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
C
California laws
– Event Data
Recorders 176
– Proposition 65
Warning 176
"Call" 148
Call
– accepting 147
– display accepted 149
– ending 148
– in absence 149
– starting 147
Calling
– from phone book 148
– from the Top 8 list 149
– redialing 149
– refer to telephone
Owner's Manual 96
"Call sender" 151
Can holder, refer to
Cup holders 97
Capacities 193
Car battery, refer to
Battery 181
Car care, refer to the Caring
for your vehicle brochure
Car-care products, refer to
the Caring for your
vehicle brochure
"Car data" 69
Care 175
Cargo, securing 105
Caring for artificial leather,
refer to the Caring for
your vehicle brochure
Caring for leather, refer to
the Caring for your
vehicle brochure
Caring for light-alloy
wheels, refer to the
Caring for your vehicle
brochure'
Caring for plastic, refer to
the Caring for your
vehicle brochure
Caring for the carpet, refer
to the Caring for your
vehicle brochureCaring for the vehicle finish,
refer to the Caring for
your vehicle brochure'
Car jacking points 181
Car keys, refer to
Key set 26
Car phone 145
– location, refer to
Center armrest 96
– refer to
Portable phone 144
– refer to separate
Owner's Manual
Car radio, refer to
Radio 130
Car wash 102
– also refer to the Caring for
your vehicle brochure
Catalytic converter, refer to
Exhaust system 102
"Categories" 135
CBC Cornering Brake
Control 76
CBS Condition Based
Service 174
"CD" 127, 137
CD changer 137
– adjusting the tone 127
– controls 126
– fast forward/reverse 140
– installation location 140
– playing a track 139
– random play
sequence 140
– repeating a track 139
– selecting a CD 137
– selecting a track 138
– switching on/off 126
– volume 127
CD player 137
– adjusting the tone 127
– controls 126
– fast forward/reverse 140
– playing a track 139
– random play
sequence 140
– repeating a track 139
– selecting a track 138
– switching on/off 126
– volume 127Center armrest
– adjusting the height 96
– front 96
Center console 14
"Central locking" 27
Central locking system 26
– from inside vehicle 29
Changes, technical, refer to
For your own safety 6
Changing a wheel 181
Changing the language on
Control Display 73
Changing the
measurement units on the
Control Display 72
Changing wheels 181
CHECK button 68
Check Control 66
"Check Control
messages" 68
Check Gas Cap 162
Checking the air pressure,
refer to Tire inflation
pressure 164
Child's seats, refer to
Child-restraint
systems 52
Child-restraint system 51
Chrome parts, care, refer
to the Caring for your
vehicle brochure
Cigarette lighter 97
Cleaning, refer to the
Caring for your vehicle
brochure
Cleaning windshield, refer
to Wiper system 61
"Climate" 90
"Climate control" 91
Clock 64
– 12/24 hour mode 73
– setting time and date 73
Closing
– from inside 29
– from outside 27
Clothes hooks, Coupe 96
Cockpit 10
Cold start, refer to
Starting the engine 54
"Communication" 146

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

Reference 205
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Manual operation
– convertible top 39
– door lock 29
– driver's door 29
– fuel filler door 162
– glass roof 36
– luggage compartment
lid 30, 31
Manual transmission 56
Map
– changing scale 120
– destination entry 112
– facing north 120
"Map, direction of
travel" 120
"Map, facing north" 120
Master key with remote
control 26
Maximum cooling 89
Maximum speed with
winter tires 169
Memory
– refer to Key Memory 26
– refer to Seat, mirror and
steering wheel
memory 44
Menus, refer to
Control Center 16
Microfilter 92
Microphone
– for hands-free
system 146
– for portable phone 14
– for voice command
system 14
Mirrors 48
– automatic curb
monitor 45
– dimming feature 48
– heating 48
– memory, refer to Seat,
mirror and steering wheel
memory 44
"Missed calls" 149
Missed calls 149
Mobile communication
devices in vehicle 104
Monitor, refer to
Control Center 16
"Monitor display on" 76Most recent portable phone
numbers 149
Multifunction steering
wheel MFL 11
Multifunction switch
– refer to Turn signals/
headlamp flasher 60
– refer to Wiper/washer
system 61
Music track, finding 139
"Mute on / off" 49
MW, waveband 130
N
"Navigation" 108
Navigation destination
– manual entry 110
– selecting via map 112
Navigation drive,
location 108
Navigation DVD 108
Navigation system 108
– address book 114
– bypassing route
sections 120
– destination entry 110
– destination guidance in
assistance window 109
– destination list 113
– displaying current
position 109
– entering a destination
manually 110
– looking for interesting
destination 113
– navigation DVD 108
– route display 119
– route list 120
– selecting destination
using information 113
– selecting destination
using map 112
– selecting route
criteria 116
– starting 108
– starting destination
guidance 118
– terminating/continuing
destination guidance 118
– voice instructions 119
– volume adjustment 119"Navigation voice instruc-
tions on" 119
Neck support, refer to
Front head restraints 45
"New address" for
navigation 114
"New destination" 110, 112
"New route" 120
New wheels and tires 168
"Next entertainment
source" 49
Nozzles
– refer to Ventilation 88
– refer to Windshield
washer nozzles 61
Nylon rope, refer to Tow-
starting and towing 185
O
OBD connector 176
Octane numbers, refer to
Fuel specifications 163
Odometer 64
Oil
– additives 172
– capacity 193
– consumption 171
– dipstick 171
– level 171
– specified engine oils 172
Oil change intervals
– refer to Service
requirement display 65
– refer to the Service and
Warranty Information
Booklet for US models or
to the Warranty and
Service Guide Booklet for
Canadian models 174
Old batteries, refer to
Disposal 181
"On a new destination" for
navigation 113
Onboard computer, refer to
Control Center 16
"Onboard information" 70
Onboard tool kit 178
"On destination" 113
"On location" 113

Reference 207
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Random play
– CD changer 140
– CD player 140
Reading lamps 87
Rear lamps, refer to
Tail lamps 180
Rearview mirror 48
Rear window defroster 89
"Received calls" 149
Receiving level of portable
phone, refer to Status
information 19
Reception
– quality 133
– radio stations 133
– regional station 132
Rechargeable flashlight 95
Recirculated-air mode,
refer to AUC Automatic
recirculated-air
control 89
Recirculation of air, refer to
AUC Automatic recircu-
lated-air control 89
Reclining seat, refer to
Backrest 43
Recording times, refer to
Stopwatch 72
"Redial" for portable
phone 149
Redialing with portable
phone 149
Refueling 162
Releasing, engine
hood 170
"Relock door if not
opened" 29
Remaining distance
– refer to Computer 70
– refer to Cruising range 69
Remote control 26
– garage-door opener 94
– luggage compartment
lid 28
– malfunctions 28
"Repeat" in audio
mode 139
"repeat track" in audio
mode 139
Replacement fuses 182Replacement of tires,
changing a wheel 181
Replacing bulbs, refer to
Lamps and bulbs 178
Replacing wheels/tires 168
Reporting an accident,
refer to Initiating an
emergency call 183
Reporting safety defects 7
Reserve warning, refer to
Fuel gauge 65
"Reset"
– for stopwatch 72
– in audio mode 129
Residual heat mode 90
Restraint systems
– for children 51
– refer to Safety belts 47
Retreaded tires 168
Reverse, fast
– CD changer 140
– CD player 140
Reverse gear
– automatic transmission
with Steptronic 59
– manual transmission 56
– SMG Sequential manual
transmission 57
Road map 120
"Roadside Assistance" 157
Roadside Assistance 184
Roadside parking lamps 86
"Roaming" 158
Rollover protection system
on Convertible 82
– lowering 82
Rope, refer to Towing and
tow-starting 185
Rotary pushbutton, refer to
Control Center 16
Route
– bypassing sections 120
– changing 116, 120
– display 120
– displaying map 120
– displaying the arrow
view 119
– list 120
– selecting 116
– selecting criteria 116"Route list" for
navigation 120
Route map 119
"Route preference" 116
Route selection 116
Run-flat tires 168
– continuing driving with a
damaged tire 168
– flat tire 80
– tire inflation
pressure 164, 168
– tire replacement 168, 169
– winter tires 169
S
Safety belts 47
– damage 47
– sitting safely 42
– warning lamp 47
Safety belt tensioners, refer
to Safety belts 47
Safety systems
– ABS Antilock Brake
System 76
– airbags 81
– DSC Dynamic Stability
Control 77
– rollover protection
system, convertible 82
– safety belts 47
Satellite radio 133
– activating 134
– selecting channel 134
– storing channel 134
"SAT" on the radio 134
"Scan"
– playing stations 131
– playing tracks 139
Scan
– CD changer 139
– CD player 139
– radio 131
"scan directory" in audio
mode 139
Screen, refer to
Control Center 16
"Screen on / off" 49
Screw-on valve caps 181