2004 BMW 645CI COUPE air condition

Notes
6
For your own safety
Fuels
Use unleaded gasoline only.
Fuels containing up to and including
10 % ethanol or other oxygenates with
up to 2.8 % oxygen by weight – that is,
15 % MTBE or 3 % methanol plus an equiv-
alent amount of co-solvent – will not void
the applicable warranties with respect to
defects in materials or workmanship. Field
experience has indicated significant differ-
ences in fuel quality – volatility, composi-
tion, additives, etc. – among gasolines
offered for sale in the United States and
Canada. The use of poor-quality fuels may
result in drivability, starting and stalling
problems, especially under certain environ-
mental conditions such as high ambient
temperature and high altitude.
Should you encounter drivability problems
which you suspect could be related to the
fuel you are using, we recommend that you
respond by switching to a recognized high-
quality brand.
Failure to comply with these recommenda-
tions may result in unscheduled mainte-
nance.
Follow the relevant safety rules when you
are handling gasoline.<
Maintenance and repair
Advanced technology, e. g. the use of
modern materials and high-perfor-
mance electronics, requires specially
adapted maintenance and repair methods.
Therefore, only have corresponding work
on your BMW carried out by a BMW center
or a workshop that works according to
BMW repair procedures with correspond-
ingly trained personnel. If work is carried
out improperly there is a danger of conse-
quential damage and the related safety
risks.<
Parts and accessories
For your own safety, use genuine
parts and accessories approved by
BMW.
When you purchase accessories tested
and approved by BMW and Genuine BMW
Parts, you simultaneously acquire the
assurance that they have been thoroughly
tested by BMW to ensure optimum perfor-
mance when installed on your vehicle.
BMW warrants these parts to be free from
defects in material and workmanship.
BMW will not accept any liability for dam-
age resulting from installation of parts and
accessories not approved by BMW.
BMW cannot test every product made by
other manufacturers to verify if it can be
used on a BMW safely and without risk to
either the vehicle, its operation, or its occu-
pants.
Genuine BMW Parts, BMW Accessories
and other products approved by BMW,
together with professional advice on using
these items, are available from all BMW
centers.
Installation and operation of non-BMW
approved accessories such as alarms,
radios, amplifiers, radar detectors, wheels,
suspension components, brake dust
shields, telephones – including operation of
any portable phone from within the vehicle
without using an externally mounted
antenna – or transceiver equipment, for
instance, CBs, walkie-talkie, ham radio or
similar accessories, may cause extensive
damage to the vehicle, compromise its
safety, interfere with the vehicle's electrical
system or affect the validity of the BMW
Limited Warranty. Refer to your BMW cen-
ter for additional information.<
Maintenance, replacement, or repair
of the emission control devices and
systems may be performed by any automo-
tive repair establishment or individual using
any certified automotive part.<

Controls
81Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Airbags
The following airbags are located under the
marked covers:
1Front airbags for driver and front pas-
senger
2Coupe: head airbags
3Front side airbags
4Knee airbag for front passenger
5Knee airbag for driver
Protective effect
The front airbags help protect the driver
and front passenger by responding to fron-
tal impacts in which safety belts alone can-
not provide adequate restraint. When
needed, the head and side airbags help
provide protection in the event of a side
impact. The side airbags help restrain the
side of the occupant's upper torso, and the
head airbags help support the head while
also helping provide protection against any
objects penetrating into the passenger
compartment.
The airbags are deliberately not triggered
in every impact situation, e.g. less severe
accidents, certain rollover conditions, or
rear-end collisions.
For information on the correct sitting posi-
tion, refer to page 42.
Even if you adhere to all the instructions
injuries resulting from contact with airbags
cannot be fully excluded, depending on the
circumstances. The ignition and inflation
noise may provoke a mild hearing loss in
extremely sensitive individuals. This effect
is usually only temporary.Do not apply adhesive materials to
the cover panels of the airbags, cover
them or modify them in any other way.
Do not attempt to remove the airbag reten-
tion system from the vehicle. Never modify
or tamper with either the wiring or the indi-
vidual components in the airbag system.
This category includes the upholstery in the
center of the steering wheel, on the instru-
ment panel, the side trim panels on the
doors and on the Coupe the roof pillars
along with the sides of the headliner.
Do not attempt to remove or dismantle the
steering wheel.
Do not touch the individual components
directly after the system has been trig-
gered, because there is a danger of burns.
If you note any indication of system mal-
function, if you desire to have an airbag
deactivated, or if the airbag retention sys-
tem is triggered in response to an accident,
you should always entrust all inspection,
repair and dismantling operations to your
BMW center. Unprofessional attempts to
service the system could lead to failure in
an emergency or undesired airbag activa-
tion, either of which could result in personal
injury.<
Airbag warning information is also provided
on the sun visors.

A congenial climate
90 rently within the vehicle. AUC executes this
function automatically.
Press the button repeatedly to run through
the following control sequence:
>Indicator lamps off: outside air flows
into the vehicle continuously
>Right indicator lamp on, AUC mode: the
system detects pollutants in the outside
air and responds by blocking the supply
of outside air when required.
Depending upon air quality require-
ments, in the automatic mode the sys-
tem alternates between its outside-air
and recirculated-air modes
>Left indicator lamp on, recirculated-air
mode: the supply of outside air into the
vehicle is continuously blocked.
If condensation starts to form on the
inside window surfaces during opera-
tion in the recirculated-air mode, you
should switch it off while also increasing
the air volume as required.
The recirculated-air mode should not be
used over a longer period of time, as the air
quality inside the vehicle deteriorates con-
tinuously.<
Residual heat mode
If you press this button with the
engine switched off, the system
uses the warmth stored in the
engine to heat the interior, for
instance, while the vehicle is
stationary at a school to pick up a child.
You can adjust the automatic climate con-
trol settings as of ignition key position 2.
Provided that the engine has warmed to its
normal operating temperature and the bat-
tery is charged, you can use this function
for up to 15 minutes after switching off the
ignition. The LED within the button lights up
to confirm compliance with both of these
conditions.
Switching off automatic climate
control
The air volume, the heater and
the cooling function are all
switched off. You can restart
the automatic climate control
by pressing any of its buttons
except the REST button.
Settings using Control Center
Ignition key:
>On vehicles with separate drives for
audio CDs and navigation DVDs, igni-
tion key in position 2
>On vehicles with one drive for audio
CDs, ignition key in position 1.
Control Center, for principle details, refer to
page 16:
1.Press button.
The start menu is opened
2.Move the controller to the left to open
"Climate".
You can set the following:
>Separate air distribution for driver and
front passenger
>Adapting the temperature in the upper
body region
>Intensity of the AUTO program.
Manual air distribution
You can combine your air distribution your-
self and also individually adjust the air tem-
perature in the upper body area.

Things to remember when driving
102
Things to remember when driving
Break-in procedures
To ensure that your vehicle continues to
provide optimized economy of operation
throughout an extended service life, we
request that you devote careful attention to
the following section.
Engine and differential
Up to 1,200 miles/2,000 km:
You should attempt to vary both vehicle
and engine speeds. Until the break-in
period has been completed, you should
also refrain from exceeding an engine
speed of 4500 rpm or a driving speed of
100 mph/160 km/h.
Always obey all official speed limits.
Avoid full-throttle operation and use of the
transmission's kickdown mode during
these initial miles.
Once you have driven 1,200 miles/
2,000 km, the engine and vehicle speeds
can be gradually increased.
SMG Sequential manual
transmission
Do not use the acceleration assistant dur-
ing the break-in period, refer to page 60.
Tires
Due to technical factors associated with
their manufacture, tires do not achieve their
full traction potential until after an initial
break-in period. Therefore, drive reservedly
during the first 200 miles/300 km.
Brake system
Brakes require an initial break-in period of
approx. 300 miles/500 km to achieve opti-
mized contact and wear patterns between
brake pads and rotors.
Clutch
The function of the clutch is only at its opti-
mized level after a distance driven of
approx. 300 miles/500 km. During this
break-in period, engage the clutch gently.
After component replacement
You should also comply with these break-in
procedures should the components men-
tioned above need to be replaced at a later
point.
General driving notes
Hot exhaust system
Extreme temperatures occur at the
catalytic converter on this and every
catalyst-equipped vehicle. Do not remove
the heat shields installed adjacent to vari-
ous sections of the exhaust system, and
never apply undercoating to them. When
driving, standing at idle and while parking,
take care to avoid possible contact
between the hot exhaust system and any
highly flammable materials such as hay,
leaves, grass, etc. Such contact could lead
to a fire, and with it the risk of serious prop-
erty damage as well as personal injury.<
Parking vehicle
Condensation forms in the air conditioner
system during operation, and then exits
under the vehicle. Traces of condensed
water under the vehicle are thus normal.
Before driving into a car wash
Fold in the exterior mirrors manually, as
otherwise they could be damaged due to
the width of the vehicle.
Hydroplaning
When driving on wet or slushy roads,
reduce road speed. If you do not, a
wedge of water can form between tires and

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.

Telephoning
144
Telephoning
Safety notes
For your own safety
Your car phone makes life more convenient
in many ways, and can even save lives in an
emergency. While you should consult your
portable phone's separate Owner's Manual
for a detailed description of safety precau-
tions and information, we request that you
direct your particular attention to the fol-
lowing:
Adjustments
To avoid posing a danger to yourself
and other road users, never adjust the
system settings unless your vehicle is sta-
tionary.<
Using the phone in your vehicle
Using a portable phone while driving
is now illegal in many states and cit-
ies. Always use your hands-free system, or
stop your vehicle in an area where you will
not pose a safety hazard to other road
users.<
Vehicles and portable phones
Do not use your phone within a
garage, or near an open hood. The air
in these areas could contain fuel vapors,
and the portable phone might generate
sparks that could result in burns.
This same precaution applies to open lug-
gage compartment lids on vehicles
equipped for operation using natural gas or
hydrogen, and to all vehicles with luggage
compartment-mounted batteries.<
Antenna
When using the phone, ensure that all
persons in the area are at least 20 in/
50 cm from the antenna. Never use your
BMW portable phone if the antenna is dam-
aged. Contact between your skin and a damaged antenna can result in minor
burns.
If the antenna is damaged, have it replaced
immediately.<
Special environmental conditions
Always switch off your BMW portable
phone in areas where blasting work is
being conducted with explosives. The
phone signals could potentially act as a
high-frequency transmitter and set off
explosions.
Always switch off your BMW portable
phone in areas where an increased explo-
sion danger is present. This category
includes gas stations along with fuel and
chemical storage depots, etc., and all
areas in which the air can contain fuel,
chemicals or metal particles. Under these
conditions, your BMW portable phone
could conceivably generate sparks that
could lead to a fire or explosion. Always
observe all legal regulations governing the
use of portable phones in the vicinity of gas
stations, chemical factories and other
areas where an explosion potential exists.
Never use your BMW portable phone in air-
craft; do not use this portable phone in hos-
pitals, care centers or at other locations
where medical equipment may be in oper-
ation, such as accident sites, etc.
Your wireless service provider can furnish
you with more detailed information on legal
regulations governing the use of your
phone.<
Medical equipment
Portable phones can generate inter-
ference capable of preventing hearing
aids and cardiac pacemakers from operat-
ing correctly. If you or any occupant of the
vehicle use such equipment, consult a phy-
sician or the manufacturer of the equip-
ment to determine whether it is adequately
shielded against high-frequency energy.<

Mobility
169Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Recommended tire sizes and makes
BMW tests certain tire brands for each tire
size, classifies them as road-safe and
approves them. You can find out about
these at specialized dealers or at your
BMW center. Observe any country-specific
regulations, e.g. on making a correspond-
ing entry in the vehicle documents.
The factory-mounted tires have been spe-
cially selected to provide optimized perfor-
mance when installed on your vehicle; if
properly cared for, they will provide a com-
bination of safety and excellent ride com-
fort.
Run-flat tires
In the event of replacement, use run-flat
tires, refer to page 168, as there is no spare
wheel available for flats.
For safety reasons, BMW recom-
mends that you do not have damaged
run-flat tires repaired; they should be
replaced.<
Special characteristics of winter
tires
BMW recommends winter tires for use in
cold winter driving conditions. Although all-
season M+S tires provide better winter
traction than summer tires, they generally
fail to provide the same levels of cold-
weather performance as winter tires.
Run-flat tires
If you switch from summer to winter tires,
or vice versa, use run-flat tires, refer to
page 168, as in the event of a flat tire there
is no spare tire available. Your BMW center
will be glad to advise you.
Observing speed ratings
Never exceed the maximum speed for
which the winter tires are rated.
Unprofessional attempts by laymen to ser-
vice tires can lead to damage and acci-
dents. Have this work performed by skilled
professionals only. The technicians at your
BMW center will be glad to assist you with the required professional knowledge and
specialized equipment.<
Storage
Always store wheels and tires in a cool, dry
place with as little exposure to light as pos-
sible. Always protect tires against all con-
tact with oil, grease and fuels. Do not
exceed the maximum tire inflation pressure
indicated on the side wall of the tire.
Snow chains*
BMW only tests certain snow chains, clas-
sifies them as road-safe and approves
them. Consult your BMW center for more
information. BMW recommends using
these approved, narrow-link snow chains.
These snow chains are approved exclu-
sively for use in pairs on the rear wheels
with the tire size 245/45 R 18.
Observe the manufacturer's instructions
when mounting snow chains.
Do not exceed a vehicle speed of 30 mph/
50 km/h with the chains mounted.
Do not initialize the Runflat Indicator
after mounting snow chains.
When you are driving with snow chains, it
can be beneficial to switch off DSC briefly,
refer to page 77.<

Maintenance
174
Maintenance
The BMW maintenance
system
The BMW maintenance system supports
the preservation of the traffic and operating
safety of your BMW. The service schedule
also includes operations related to the
vehicle's comfort and convenience fea-
tures, such as replacement of the filters for
the inside air. The ultimate objective is to
ensure economical maintenance by provid-
ing the ideal service for your vehicle.
Should the day come when you decide to
sell your BMW, you will find that a complete
dealer service history is an asset of inesti-
mable value.
CBS Condition Based Service
Sensors and special algorithms take the
different driving conditions of your BMW
into account. Condition Based Service
uses this to determine the current and
future maintenance requirement. By letting
you define a service and maintenance reg-
imen that reflects your own individual
requirements, the system builds the basis
for trouble-free driving.
The service requirement display, refer to
page 65, individually displays the time or
distance remaining for selected mainte-
nance work and any legally required inter-
vals:
>Engine oil
>Brakes, front and rear separately
>Microfilter/activated-charcoal filter>Brake fluid
>Spark plugs
>Vehicle check
>Legally required tests depending on
local regulations.
Your vehicle stores this information contin-
uously in the master key while the vehicle is
being driven. After accessing the data
stored in the master key, your BMW Ser-
vice Advisor can suggest precisely the right
array of service procedures for your own
individual vehicle. You should therefore
hand over to the BMW Service Advisor the
key you last used to drive when you take
your vehicle for service.
Make sure the date in the Control
Center is always set correctly, refer to
page 74, as otherwise the effectiveness of
CBS Condition Based Service is not
ensured.<
Service and Warranty Information
Booklet for US models and Warranty
and Service Guide Booklet for
Canadian models
Please consult your Service and Warranty
Information Booklet for US models and
Warranty and Service Guide Booklet for
Canadian models for additional information
on service requirements.
Have service and repair operations
performed at your BMW center.
Take the time to ensure that these service
procedures are confirmed by entries in
your vehicle's Service and Warranty Infor-
mation Booklet for US models and War-
ranty and Service Guide Booklet for Cana-
dian models. These entries verify that your
vehicle has received the specified regular
maintenance, and may also be required
when submitting warranty claims.<