2005 BMW 645CI CONVERTIBLE traction control

At a glance
13Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Indicator and warning lamps
The concept
Indicator and warning lamps and their combina-
tions appear in the indicator area1 and in the
display2. For better differentiation of malfunc-
tions, different symbols can appear in the dis-
play 2.
Some lamps in the indicator area1 are checked
for proper operation when the engine is started
or the ignition is switched on and light up briefly
in the process.
Confirmation of active functions
The following indicator lamps in the indicator
area1 indicate that certain functions are active:
Required action in case of a
malfunction
All warning lamps and indicator lamps not pre-
viously listed are also accompanied by text
messages at the bottom of the Control Display.
These may contain detailed information on the
cause of a malfunction and the corresponding
action required.
Sometimes warning lamps are also accompa-
nied by additional text messages on the Control
Display which are displayed immediately. Text
messages which do not appear immediately are
stored and can be displayed at a later time. For
details on displaying these messages later,
refer to Check Control on page71. Turn signals60
Handbrake set55
Handbrake for Canadian models
Front fog lamps92
DTC Dynamic Traction Control83
High beams/headlamp flasher92
DSC Dynamic Stability Control83

At a glance
15Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
1Coupe: glass sunroof, electric with raise
function
*37
2Microphone for portable phone
*151
Convertible: microphone on steering
column
3Reading lamps93
4Interior lamps93
5Microphone for voice command
system
*22
Convertible: microphone on steering
column
6Coupe: initiating emergency call
*185
7Convertible: initiating emergency
call
*185
8Control Display16
9Hazard warning flashers
10Central locking system31
11Automatic climate control9412Starting search function
>for radio station137
>for track144
13Ejecting
>navigation DVD
*114
>audio CD132
14Drive for navigation DVDs
*114
15Drive for audio CDs132
16Switching audio sources on/off and
adjusting volume132
18Bracket for cup holder103
19Controller16
20Activating voice command system
*22
21Opening start menu on Control Display17
22Dynamic Driving Control59 Temperature setting, left/right95
Automatic air distribution and
volume95
Cooling function95
AUC Automatic recirculated-air
control95
Maximum cooling95
Residual heat mode96
Switching off automatic climate
control96
Air volume95
Defrosting windows and removing
condensation95
Rear window defroster94
17
Heated seats49
PDC Park Distance Control
*80
DTC Dynamic Traction Control82
Convertible: opening the convert-
ible top40
Convertible: closing the convertible
top40

Controls
53Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Information regarding this is located near the
buckle latch of each safety belt.
To lock safety belt
Pull the entire length of the belt from the belt
retractor. Allow the reel to retract the belt
somewhat and engage the buckle, then tighten
the belt against the child-restraint system. The
retraction mechanism is now locked.
To unlock safety belt
Release the buckle, remove the child-restraint
system and allow the belt retractor to reel the
belt completely in.
Coupe: child-restraint system with
tether strap
If you use a child-restraint system with a tether
strap, two additional tether anchorage points
have been provided – refer to the arrows in the
illustration. Depending on the location selected
for sitting in the rear passenger area, attach the
tether strap to the corresponding anchorage
point to secure the child-restraint system, as
shown in the illustration below.
Each sitting position is fitted with a head
restraint.
The head restraint must be adjusted into the lowest possible position. Pass the tether strap
over the head restraint.
Adjust the tether strap according to the
child-restraint manufacturer's instruc-
tions.<
LATCH child-restraint fixing system
LATCH: Lower Anchor and Tethers for CHil-
dren.
The rear outer sitting positions are provided
with anchors for a LATCH child-restraint fixing
system.
To fit the LATCH child-restraint fixing
system, follow the operating and safety
instructions of the system manufacturer.<
Access to anchorage points
The illustrations show the right rear seat as an
example. The outer anchorage points for the
LATCH child-restraint fixing system are identi-
fied by flags
*.
The anchorage points for the LATCH child-
restraint fixing system are identified by but-
tons
*.

Technology for comfort, convenience and safety
82 Do not reduce the pressure on the brake pedal
for the duration of the brake application. When
the brake pedal is released, DBC is deactivated.
DSC Dynamic Stability Control
The system prevents slip at the drive wheels
when driving off and accelerating. DSC also
detects unstable driving conditions such as
fishtailing or sliding of the front wheels. In these
cases DSC helps the vehicle safely stay on
course within the physical limits by reducing the
engine output and through braking actions in
the individual wheels.
The DSC is operational every time you start the
engine.
The laws of physics cannot be repealed,
even with DSC. An appropriate driving
style always remains the responsibility of the
driver. Therefore, do not reduce the additional
safety margin again by taking risks.<
DTC Dynamic Traction Control
DTC is a variant of DSC for special road condi-
tions, e.g. uncleared snow-covered roads, that
is optimized for forward momentum. The sys-
tem ensures maximum forward momentum, but
with limited driving stability. Therefore, drive
with the corresponding caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
>When driving on snow-covered uphill
grades, in slushy snow or on uncleared,
snow-covered roads
>When rocking a stuck vehicle free or when
starting off in deep snow or on loose ground
>When driving with snow chains
*
Activating DTC
Press the button; the DTC indicator lamp in the
instrument cluster lights up.
Deactivating DTC again
Press the button again; the DTC indicator lamp
in the instrument cluster goes out.
Deactivating DTC and DSC together
Press the button until the DSC indicator lamp in
the instrument cluster lights up, however not
longer than approx. 10 seconds. Interventions
promoting stability and forward momentum will
no longer be carried out. In addition, the stability
promoting intervention of the active steering
*
is deactivated, refer to page85.
A message appears on the Control Display.
Please note any supplementary information
that appears there.
To support enhanced operating stability, reacti-
vate DSC again as soon as possible.
Reactivating DSC
Press the button; the indicator lamp in the
instrument cluster goes out.

Wheels and tires
170
Tire identification marks
Knowledge of the labeling on the side of the tire
makes it easier to identify and choose the right
tires.
Tire size
Speed letter
T = up to 118 mph/190 km/h
H = up to 131 mph/210 km/h
V = up to 150 mph/240 km/h
W = up to 167 mph/270 km/h
Y = up to 186 mph/300 km/h
Tire Identification Number
Tires with DOT codes meet the guidelines of
the U.S. Department of Transport.
DOT code:
Tire age
The tire's date of manufacture is indicated on
the sidewall:
DOT ... 3604 indicates that a tire was manufac-
tured in week 36 of the year 2004.
BMW recommends replacing all tires at least
every 6 years, even if some tires may last for
10 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width. For example:
Tread wear 200 Traction AA
Temperature A
DOT Quality Grades
Tread wear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to
Federal Safety Requirements in addition
to these grades.<
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one
and one-half, 1γ, times as well on the govern-
ment course as a tire graded 100. The relative
performance of tires depends upon the actual
conditions of their use, however, and may
depart significantly from the norm due to varia-
tions in driving habits, service practices and dif-
ferences in road characteristics and climate.
Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test sur-
faces of asphalt and concrete. A tire marked C
may have poor traction performance.
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor-
nering, hydroplaning, or peak traction charac-
teristics.<
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 e.g.
Nominal width
in mm
Aspect ratio in Ξ
Radial type
Rim diameter in inches
Load rating
not on ZR tires
Speed rating
before R on ZR tires
205/60 R 15 91 W
e.g.
Manufacturer code
for tire make
Tire size and tire design
Tire ageDOT xxxx xxx 3604

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

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

Everything from A to Z
212 TeleService159
– enabling159
– services offered160
Temperature display
– ice warning69
– outside temperature69
– setting measurement
units69
Temperature gage
– engine oil70
Tempomat, refer to Cruise
control61
"Terminate services"162
"Text language"78
"Theater"135
The individual vehicle5
Tilt function, passenger-side
mirror47
"Time"78
"Time 1" for independent
ventilation98
"Time 2" for independent
ventilation98
"Time format"78
Timer, refer to Preselecting
activation time98
Tire pressure monitoring,
refer to Flat Tire Monitor84
Tire Quality Grading170
Tires
– age170
– air loss85
– breaking-in108
– changing172
– condition171
– damage171
– flat tire85
– inflation pressure168
– new wheels and tires172
– pressure monitoring, refer to
Flat Tire Monitor84
– replacing172
– retreaded tires172
– run-flat tires172
– size169
– tread171
– wear indicators171
– wheel/tire combination172
– winter tires172"Tone"134
Tone in audio mode
– adjusting133
– middle setting135
Tools, refer to Onboard tool
kit180
"Top 8" for portable
phone154
Torque, refer to Engine
specifications192
Touch tone dialing155
Tow fitting188
Towing188
– tow fitting188
"Town / City" for destination
entry116
Tow-starting189
Tracks
– random play sequence145
– sample, Scan145
Track width, refer to
Dimensions193
Traction control, refer to DSC
Dynamic Stability
Control82
Traffic congestion, refer to
Bypassing route
sections128
Transmission
– automatic transmission with
Steptronic58
– manual transmission56
– SMG Sequential manual
transmission56
Transporting children
safely52
Transport securing device,
refer to Securing load111
Tread depth, refer to Minimum
tread depth171
"Treble", refer to Tone
control134
"Trip computer"75
Trip computer75
Trip-distance counter, refer to
Trip odometer69
"Triple turn signal
activation"60Trip odometer69
Trunk, refer to Luggage
compartment34
Trunk lid, refer to Luggage
compartment lid32
Turning circle, refer to
Dimensions193
Turn signals60
– indicator lamp13
– replacing bulbs181
U
Undercarriage protection,
refer to the Caring for your
vehicle brochure
Uniform Tire Quality Grading/
UTQR170
"Units"78
Units
– average fuel
consumption77
– temperature77
Universal garage-door
opener, refer to Integrated
universal remote
control100
Universal remote control, refer
to Integrated universal
remote control100
"Unlock button"29
Unlocking
– from inside32
– from outside29
Unlocking and locking doors,
setting confirmation
signals30
"Update services"162
"Use current location as
address"122