2005 BMW 645CI COUPE&CONVERTIBLE maintenance

645CiOwner's Manual for Vehicle
Congratulations, and thank you for choosing a BMW.
Thorough familiarity with your vehicle will provide you with
enhanced control and security when you drive it. We therefore
have this request:
Please take the time to read this Owner's Manual and familiarize
yourself with the information that we have compiled for you
before starting off in your new vehicle. It contains important data
and instructions intended to assist you in gaining maximum use
and satisfaction from your BMW's unique range of technical fea-
tures. The manual also contains information on maintenance
designed to enhance operating safety and contribute to main-
taining the value of your BMW throughout an extended service
life.
This Owner's Manual should be considered a permanent part of
this vehicle. It should stay with the vehicle when sold to provide
the next owner with important operating, safety and maintenance
information.
This manual is supplemented by a Service and Warranty Informa-
tion Booklet for US models or a Warranty and Service Guide
Booklet for Canadian models.
We wish you an enjoyable driving experience.
BMW AG

Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Contents
The fastest way to find specific topics is to use
the index, refer to page199.
Using this Owner's Manual
4Notes
Reporting safety defects 7
At a glance
10Cockpit
16Control Center
22Voice command system
Controls
28Opening and closing
44Adjustments
52Transporting children safely
54Driving
69Everything under control
80Technology for comfort, convenience
and safety
91Lamps
94A congenial climate
100Practical interior accessories
Driving tips
108Things to remember when driving
Navigation
114Starting navigation system
115Destination entry
124Destination guidance
129What to do if …
Entertainment
132On/off and tone
136Radio
143CD player and CD changer
Communications
150Telephoning
159TeleService, BMW Assist
Mobility
166Refueling
168Wheels and tires
174Under the hood
178Maintenance
180Replacing components
185Giving and receiving assistance
Reference
192Technical data
196Short commands of the voice command
system
199Everything from A to Z

Notes
6
For your own safety
Maintenance and repair
Advanced technology, e. g. the use of
modern materials and high-performance
electronics, requires specially adapted mainte-
nance and repair methods. Therefore, have cor-
responding work on your BMW carried out only
by a BMW center or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel. If work is car-
ried out improperly there is a danger of conse-
quential damage and the related safety risks.<
California Proposition 65 Warning
California law requires us to issue the following
warning:
Engine exhaust and a wide variety of
automobile components and parts,
including components found in the interior fur-
nishings in a vehicle, contain or emit chemicals
known to the State of California to cause cancer
and birth defects and reproductive harm. In
addition, certain fluids contained in vehicles and
certain products of component wear contain or
emit chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
Battery posts, terminals and related accesso-
ries contain lead and lead compounds. Wash
your hands after handling.
Used engine oil contains chemicals that have
caused cancer in laboratory animals. Always
protect your skin by washing thoroughly with
soap and water.<
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 performance 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 damage
resulting from installation of parts and accesso-
ries 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 vehi-
cle, its operation, or its occupants.
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 mobile phone from
within the vehicle without using an externally
mounted antenna, or transceiver equipment, for
instance, CBs, walkie-talkies, ham radios or
similar accessories, may cause extensive dam-
age to the vehicle, compromise its safety, inter-
fere with the vehicle's electrical system or affect
the validity of the BMW Limited Warranty. Refer
to your BMW center for additional informa-
tion.<
Maintenance, replacement, or repair of
the emission control devices and sys-
tems may be performed by any automotive
repair establishment or individual using any cer-
tified automotive part.<

Everything under control
70
Engine oil thermometer
The engine oil temperature is between approx.
1607/706 and approx. 3407/1706 during
normal operation.
If the engine oil temperature is too high, a mes-
sage appears on the Control Display.
Fuel gage
Fuel tank capacity: approx. 18.5 US gallons/
70 liters, including the reserve capacity of
approx. 2.1 gallons/8 liters. You can find infor-
mation on refueling on page166.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
After the reserve quantity has been reached, a
message appears for a short time on the Con-
trol Display; the remaining range is shown in the
computer. Below a range of approx. 30 miles/
50 km, the message remains on the Control
Display.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, as otherwise engine functions are not
ensured and damage can occur.<
Service requirements
The remaining distance to be driven and the
date for the next maintenance are briefly indi-
cated with the ignition key in position 2.
Your BMW Service Advisor will determine
your vehicle's current service require-
ments by reading out the data stored in the
master key.<
Additional information
You can view additional information on service
and maintenance procedures on the Control
Display.
Control Center, for principle details, refer to
page16.
1.Open the menu.
2.Select "Service" and press the controller.
3.Select "Service requirements" and press
the controller.
4.Select "Status" and press the controller.
The display shows a list of selected service and
maintenance procedures, as well as legally
mandated official inspections.

Controls
83Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
To control
The indicator lamp flashes:
DSC or DTC controls the drive forces
and brake forces.
The indicator lamp comes on:
DSC and DTC are deactivated together via the
button DTC.
The indicator lamp comes on: DTC is
activated via the DTC button.
Malfunction in the driving-stability
control systems
The brake system warning lamp lights
up in red, appearing together with the
indicator lamps for ABS and DSC. A
message appears on the Control Dis-
play. The driving-stability control sys-
tems have failed. Conventional braking
efficiency remains available without
limitations.
While you may continue, you should remember
to proceed cautiously and drive defensively
while avoiding full brake applications.
Have the system checked as soon as possible.
Display of the previously described
malfunction on Canadian models.
The DSC indicator lamp lights up. A
message appears on the Control Dis-
play. A malfunction has occurred in
DSC and DTC.
The stability maintenance functions are no
longer available. The vehicle remains opera-
tional.
Have the system checked as soon as possible.
The warning lamp for the brake system
lights up in yellow. A message appears
on the Control Display. DBC has failed.
Have the system checked as soon as possible.Display of the previously described
malfunction on Canadian models.
Active roll stabilization*
The concept
Active roll stabilization minimizes body roll and
optimizes vehicle stability during cornering and
evasive maneuvers.
Dynamic stabilizers at the front and rear axles
form the basis for active roll stabilization. Sus-
pension compliance adapts to suit driving con-
ditions, varying from performance-oriented
during cornering to smooth and comfort-ori-
ented when the vehicle is proceeding in a
straight line. During vehicle operation, the sys-
tem continuously runs through closed-loop
control cycles lasting only fractions of a second.
The system assumes operational status each
time you start the engine.
Malfunction
The warning lamp lights up and a mes-
sage appears on the Control Display.
There is a malfunction in the system.
Have the system checked as soon as possible.
If there is a malfunction in the system,
please remember to adapt your speed
accordingly, especially in curves.
The suspension will be noticeably softer and
the vehicle will display a greater tendency to tilt
during cornering and in crosswinds.
If a message stating that you should stop
appears on the Control Display, stop and switch
off the engine as soon as possible. In this case
the oil level in the reservoir may have dropped
below the minimum, possibly owing to a leak in
the hydraulic system. Do not continue driving.
Contact your BMW center.<

Controls
97Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
To select the front passenger area:
Move the controller to the right.
Pressing the AUTO button raises and
lowers the air distribution settings on the
Control Display.<
Adapting temperature in upper body
region
1.Select "Vent settings" and press the con-
troller.
2.Select the field by moving the controller and
adjust the air distribution by turning the
controller.
Setting intensity of AUTO program
To meet your individual needs, you can weaken
or strengthen the intensity of the automatic cli-
mate control.
1.Select "Automatic programs" and press the
controller.
2.Select the desired intensity and press the
controller.
Convertible program
When the convertible top is opened, the con-
vertible program can also be selected. In the
convertible program, the automatic climate control is optimized for driving with the convert-
ible top open. In addition, the air supply is
increased as the speed increases.
If the convertible program has been selected, it
is automatically active every time the top is
opened.
The effect of the convertible program can
be greatly enhanced if the wind deflector
is installed.<
Ventilation
1Serrated dial for smoothly opening and
closing air vents
2Lever for changing the airflow direction
Do not drop any foreign bodies into the
vent outlets, as otherwise these could be
catapulted outwards and lead to injuries.<
Ventilation for cooling
Adjust the vent outlets to direct the flow of cool
air in your direction, for instance, if the interior
has become too warm, etc.
Draft-free ventilation
Set the vent outlets so that the air flows past
you and is not directed straight at you.
Microfilter/activated-charcoal filter
The microfilter removes dust and pollen from
the incoming air. The activated-charcoal filter
provides additional protection by filtering gas-
eous pollutants from the outside air. Your BMW
center replaces this combined filter as a stan-
dard part of your scheduled maintenance.
You can have more detailed information shown
on the Control Display, refer to page70.

159
Entertainment
Reference
At a glance
Controls
Driving tips Communications
Navigation
Mobility
TeleService , BMW Assist
TeleService
TeleService supports you in communicating
with your BMW center. The installed car phone
can be used to transmit data on the service sta-
tus of your vehicle or on legally mandated
inspections directly to your BMW center. These
are the same data which are stored in the mas-
ter key for CBS Condition Based Service. Your
BMW center can then contact you, and you can
make an appointment that suits you while you
are still on the road. Your advantage is that your
BMW center can prepare in advance for the
required maintenance work. The TeleService
functions are country-specific and depend on
the contract: the data on the service status of
your vehicle or on legally mandated inspections
is transmitted on a country-specific basis either
automatically before they fall due or simulta-
neously when you call your BMW center. Your
BMW center will be glad to provide more
detailed information.
BMW Assist
With BMW Assist, other services are available
to you in addition TeleService, e.g. the your
vehicle's position data can be transmitted to the
BMW Assist response center when an emer-
gency call
* has been initiated.
Many functions of BMW Assist depend on the
individually agreed contract. The data transmis-
sion, e.g. of CBS Condition Based Service, is
different in individual countries.
The subscriber agreement must be completed
successfully before using the BMW Assist ser-
vices.
Requirements
The installed car phone is logged on to a porta-
ble telephone network. This network must be
capable of transmitting the services.To transmit position data, the vehicle must be
able to determine the current position. This is
displayed on the Control Display. In order to
enable and update TeleService or BMW Assist,
a GPS signal must be present.
Enabling TeleService or BMW Assist
For you to be able to use the services of
TeleService or BMW Assist, these must be
enabled.
Leave the ignition key in position 1 during the
entire operation.
Control Center, for principle details, refer to
page16.
1.Press button.
This opens the start menu.
2.Press controller to open the menu.
3.Select "Communication settings" and
press the controller.
4.Select "BMW Service settings" and press
the controller.
**

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 breakdown assistance.
Mobility