2004 BMW 645CI COUPE 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

145
Entertainment
Reference
At a glance
Controls
Driving tips Communications
Navigation
Mobility
Batteries
Never attempt to dismantle your
BMW portable phone or its battery.
Use only approved battery types – the
wrong battery can destroy your portable
phone.
To avoid possible short circuits, after
removing a battery you should never allow
it to come into contact with metallic sur-
faces of any kind.<
Disposing of used batteries
Return used batteries to a recycling
collection point or to your BMW cen-
ter.<
Care instructions
You can find what you need to know about
caring for your portable phone in the Caring
for your vehicle brochure and in the sepa-
rate portable phone Owner's Manual.
Operating options
You can operate the BMW portable phone*
with:
>The steering wheel, refer to page 11
>The Control Center, refer to page 146
>Voice control, refer to page 151.
Telephoning with car phone:
BMW Assist calls
You can use the car phone via the hands-
free system for BMW Assist calls.
When the status information "Car Phone" is
displayed in "Communication", only BMW
Assist calls are possible.
Activating the
BMW portable phone*
Requirements for portable phones with
SIM card:
>Enter a Personal Identification Number,
PIN, if necessary
>Remove all keypad locks, refer to sepa-
rate Owner's Manual.
Before starting off, place the BMW portable
phone in the cradle. If a connection to
BMW Assist has been established, you
cannot use the BMW portable phone until
this connection has been terminated.
Inserting portable phone
1.Press button 1
2.To adjust the cradle to the portable
phone:
Slide the switch 2 toward the front or
rear if necessary
3.If necessary, remove the protective cap
from the antenna connector on the back
of the portable phone
4.Insert the portable phone with the
antenna completely retracted
5.Press the cradle downwards.
When the status information "Portable" is
displayed in "Communication", you can
operate the BMW portable phone via the
vehicle.
Removing portable phone
Press button 1.
For information on operating your
portable phone, please consult the
separate Owner's Manual.<

Telephoning
146
Hands-free system
Coupe:
Convertible:
The hands-free microphone is located near
the interior rearview mirror or on the steer-
ing column.
The hands-free system is activated when-
ever you establish or receive a call using:
>The button on the steering wheel
>The Control Center
>Voice control.
Volume adjustment
Turn the button during a call to select the
desired volume.This volume for the hands-free system is
maintained, even if the other audio sources
are set to minimum volume.
Depending on which key you have used to
open the vehicle, the last adjustment is
applied.
Operation using Control
Center
The following functions can be used via the
Control Center as soon as the BMW porta-
ble phone has been laid in the cradle:
>Entering unlock code
>Dialing a phone number
>Phone book
>Top 8
>Redialing
>Displaying accepted calls
>Displaying missed calls
>Text messages/SMS.
Control Center, for principle details, refer to
page 16:
1.Press button.
The start menu is opened
2.Move the controller forwards to open
"Communication".

151
Entertainment
Reference
At a glance
Controls
Driving tips Communications
Navigation
Mobility
To close the text message:
Move the controller forwards to select
and press the controller.
Calling sender
1.Select the desired text message and
press the controller.
The text message is displayed
2.Select "Options" and press the control-
ler
3.Select "Call sender" and press the con-
troller.
The selected sender is called.
Deleting text messages/SMS
1.Select the desired text message and
press the controller.
The text message is displayed
2.Select "Options" and press the control-
ler
3.Select "Delete" and press the control-
ler.
The text message of the portable phone
is deleted.
Operation by voice control*
The concept
You can operate your portable phone with-
out having to remove your hands from the
steering wheel. The system operates on
the basis of voice commands that you learn
easily after using them a few times. In addi-
tion, you are also supported by instructions
or questions.
Symbols usedVoice commands
In ignition key position 2:
1.Briefly press the button on the steer-
ing wheel.
A sound signal indicates operating
readiness
2.Speak voice commands.
To have the system list the voice com-
mands possible in each case:
Canceling operation via voice
control
Briefly press the button on the steering
wheel
or
In dialogs where text of any kind can be
spoken, e.g. a name, canceling is only pos-
sible using the button. Voice control dia-
log is automatically interrupted when an
incoming call is received.
Voice commands
In addition to the commands described in
this Owner's Manual, alternative com-
mands are often possible for the same
functions, e.g.:
Digits from zero to nine are understood.
You can say each digit individually or group
them into a sequence of three to five digits
to speed up the process.
{...} Identifies voice commands.
{{...}} Identifies instructions generated
by the system.
{Help}.
{Cancel}.
{Dial name} or {Name}.

Telephoning
152
An example: dialing a phone number
Start the dialog:
Briefly press the button on the steering
wheel.
Volume adjustment
You can adjust the volume for the instruc-
tions from the system:
Turn the button during an instruction to
select the desired volume.
This volume for the instructions is main-
tained, even if the other audio sources are
set to minimum volume.
Depending on which key you have used to
open the vehicle, the last adjustment is
applied.
First steps
Entering unlock code
You can protect your BMW portable phone
against misuse with a four-digit unlock
code.
Correcting unlock code
After the sequence of digits has been
repeated by the system, the unlock code
can be corrected.
Deleting unlock code
Canceling operation
Calling
Dialing a phone number
Voice commandResponse
{Dial number}{{Please say the number}}
e.g. {123 456 7890}{{123 456 7890. Continue?}}
{Dial}{{Dialing number}}
1.{Input unlock code}.
The dialog for entering the unlock
code is started
2.Speak unlock code
3.{Send unlock code}.
1.{Correct number}.
The block of digits is deleted
2.Speak the new unlock code on
request
3.{Send unlock code}.
{Delete number}.
{Cancel}.
1.{Dial number}.
The dialog for establishing a tele-
phone connection is called up
2.Say the phone number.
For telephone calls abroad, say
{Plus} and then the country code
3.{Dial}.
The connection to the desired sub-
scriber is established.

Mobility
This section helps you maintain
your mobility by supplying important
information on vital topics including fuels
and lubricants, wheels and tires, service,
maintenance and how to deal with any
problems that may occur.

Wheels and tires
164
Wheels and tires
Tire inflation pressure
Information for your safety
It is not merely the tire's service life, but
also driving comfort and – to a great extent
– driving safety that depend on the condi-
tion of the tires and the maintenance of the
specified tire pressure.
Check the tire inflation pressure regu-
larly and correct it if necessary: at
least every two weeks and before begin-
ning a longer trip. If you fail to observe this
precaution, you may be driving on tires with
incorrect tire pressures, a condition that
can not only compromise your vehicle's
stability, but also lead to tire damage and
the risk of an accident.<
Checking tire inflation pressure
Only check tire inflation pressure when the
tires are cold. This means after a maximum
of 1.25 miles/2 km driving or when the
vehicle has been parked for at least
2 hours. When tires are warm, the tire infla-
tion pressure increases.
After correcting the inflation pres-
sure(s), always reinitialize the Flat Tire
Monitor, refer to page 79.<
Inflation pressures for original tires
The tires must be at ambient temperature.
The inflation pressures, provided on a label
affixed to the B-pillar, are visible when the
driver's door is open.
Inflation pressure for other tire sizes
The tables below provide all the correct
inflation pressures for the specified tire
sizes at ambient temperature.
For correct identification of the right
tire inflation pressure for your tires,
observe the specifications for the corre-
sponding tire size.<
Observe tire size
The specified pressures apply to tire sizes
approved by BMW and recommended tire
makes; your BMW center will be glad to
provide information.

Wheels and tires
166
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 ... 1204 indicates that a tire was man-
ufactured in week 12 of the year 2004.
BMW recommends for various reasons,
including beginning brittleness, replacing
all tires after 6 years at the latest, even if a
tire age of 10 years is possible.
Uniform Tire Quality Grading
Quality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width.
For example:
Treadwear 200 Traction AA
Temperature A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform
to Federal Safety Requirements in
addition to these grades.<
Treadwear
The treadwear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course.
For example, a tire graded 150 would wear
one and one-half, 1g, times as well on the
government 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 variations in driving habits,
service practices and differences 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 govern-
ment test surfaces 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 brak-
ing traction tests, and does not include
acceleration, cornering, hydroplaning, or
peak traction characteristics.< e.g.
Nominal width
in mm
Aspect ratio in X
Radial type
Rim diameter in inches
Load rating
not on ZR tires
Speed rating
before R on ZR tires
205/60 R1591W
e.g.
Manufacturer code
for tire make
Tire size and tire design
Tire ageDOT xxxx xxx 1204