engine BMW 745LI SEDAN 2002 Owner's Manual

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
89
You also enjoy the option of having the
system show distances to objects in the
Control Display. The Control Display will
also indicate the presence of objects in
green before they are close enough to
generate a signal tone.
Select "PDC pic." from the "Settings" menu
and confirm your selection. This activates
the PDC display.
The display then appears in the Control
Display whenever PDC is automatically or
manually activated.
The previous display automatically reap-
pears after the system is deactivated.
Confirm in the menu to return to
the previous display.<
Even with PDC, final responsibility for
estimating the distance between the
vehicle and any obstructions always
remains with the driver. Even when sensors
are involved, there is a blind spot in which
objects cannot be detected. The system is
also subject to the physical limits that apply
to all forms of ultrasonic measurement,
such as those encountered with tow bars
and trailer couplings, as well as thin and
wedge-shaped objects, etc. After initial
detection, low objects such as curbs, etc.,
may disappear again before the system
starts to generate a continuous warning
tone. Loud noises from outside and inside
the vehicle may prevent you from hearing
PDC's signal tone.<
Keep the sensors clean and free of ice
or snow in order to ensure that they
will continue to operate effectively.
Do not apply high pressure spray to the
sensors for a prolonged period of time. Keep the spray at least 4 in (10 cm) away
from the sensors.<
Driving stability control/
DSC Dynamic Stability
Control Your BMW is equipped with an extended
array of systems designed to enhance and
maintain vehicle stability under extreme
conditions. The following section describes
these functions based on DSC and ABS. The concept DSC maintains vehicle stability, even in
critical driving situations.
The system optimizes vehicle stability
during acceleration and when starting from
a full stop, as well as optimizing traction.
The system recognizes any tendency for
the vehicle to assume an unstable attitude
such as oversteer or understeer; it then
counteracts this tendency with a combina-
tion of graduated reductions in engine
torque and selective braking intervention at
individual wheels. DSC provides optimal
stability within the limits defined by the
laws of physics.
The DSC is operational every time you start
the engine. DSC includes the functionality
of the DTC Dynamic Traction Control and
DBC Dynamic Brake Control.
With its selective braking intervention at the
individual drive wheels, DTC fulfills the
same function as a conventional limited-
slip differential to enhance traction under
difficult driving conditions, such as on
snow, etc. Indicator lamps
The indicator lamp in the Info
Display goes out soon after you
start the engine.
If the indicator lamp flashes:
DSC controls the drive and braking forces.
The indicator lamp stays lit:
DSC has been switched off via the Control
Display.

Technology for comfort, convenience and safety
92 Active stabilizers at the front and rear axles
form the basis for Dynamic Drive. Suspen-
sion compliance adapts to suit driving
conditions, varying from performance-
oriented during cornering to smooth and
comfort-oriented when the vehicle is
proceeding in a straight line.
The system assumes operational status
each time you start the engine.
Driving with Dynamic Drive During vehicle operation, the system
continuously runs through closed-loop
control cycles lasting only fractions of a
second. In case of malfunction
The symbol will light up, accompa-
nied by a status message in the
Check Control panel. Please take
note of the additional information in the
Control Display panel.
You can find more detailed information on
the Check Control starting on page 80.
If the Dynamic Drive system switches
off in response to malfunction, please
remember to adapt your speed accord-
ingly, 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 status message appears in the Check
Control panel, accompanied by a red
symbol, the hydraulic fluid in the reservoir
may have fallen to below the minimum
level, possibly owing to leakage in the
hydraulic system. Stop the vehicle and
switch off the engine immediately.
Please observe the additional instructions
provided in the Control Display panel.<
EDC Electronic Damping
Control*

The suspension responds to changes in
factors such as road surface, or operating
conditions such as steering and braking, by
adapting to the new conditions within frac-
tions of a second.Comfort program The system automatically assumes opera-
tion in its Comfort mode each time you start
the engine; this mode is suitable for use
throughout the vehicle's entire speed range
and regardless of load. Sport programActivate in "Settings" menu with the igni-
tion on.
You should select the Sport program for
consistently performance-oriented
response from shock absorbers and
steering. RDC Tire Pressure Monitor*The conceptRDC monitors inflation pressures in all four
tires while you drive. The system provides
an alert whenever the inflation pressure
drops significantly below the specified
pressure in one or more tires.
To initialize RDC, start by checking the
inflation pressures in all four tires and
comparing them with those specified in the
chart on page 171, correcting them as
necessary. Then proceed to initialize the
system.

A congenial climate
100 1Automatic air distribution and supply Ð
left side of passenger compartment103
2External air/AUC Automatic recirculated
air control/Recirculated air101
3To defrost windshield and door
windows101
4Temperature control Ð left-hand side, see
next column
5Maximum cooling101
6Air supply Ð left-hand side101
7To switch off automatic climate
control103
8Air supply Ð right-hand side101
9Temperature control Ð right-hand side,
see next column
10Residual heat mode101
11Rear window defroster
12Air conditioner101 13Automatic air distribution and supply Ð
right side of passenger compartment103
14Air grill for interior temperature sensor Ð
please keep clear and unobstructed
15Parked-car ventilation system106
>Activation time set Ð the indicator lamp is
on
>Parked-car ventilation on Ð the indicator
lamp flashes
All of the remaining setting options
available with the automatic climate
control can be found in the Control
Display's "Settings" menu, refer to
page 103.
The current settings for temperature and air
supply appear in the Control Display's
status line.
You can find a description of the Control
Display on page 19.<
A congenial climate Activate the automatic mode using the
AUTO button or "AUTO" in the Control
Display, refer to page 103. Select the
interior temperature that you find most
comfortable.
The following section contains more
detailed information on the available
setting options.
All of the air conditioner functions,
including maximum cooling, refer to
page 101 and the rear air conditioner, see
page 105 are available only when the
engine is running.<
Your vehicle has been designed to
automatically select your personal
climate-control settings whenever you unlock the doors using your individually
programmed remote control unit.<
Automatic air distribution and supply
The AUTO program adjusts the
air supply and distribution
patterns for you while also
using your preselected temperature setting
as the basis for adjusting the interior
climate to adapt to external influences Ð
summer, winter.

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
101
Temperature adjustment
You can turn to select the
desired temperatures for the
driver's and passenger sides.
Your settings appear in the
Control Display's status line.
The figures in the display provide a general
indication of interior temperature. When
you start the vehicle, this system ensures
that the selected temperature is achieved
as quickly as possible. It then maintains
this temperature, regardless of the season.
Defrost windows and clear them of
condensation
This program quickly removes
ice and condensation from the
windshield and door windows.
To adjust air supply manually
You can adjust the air supply by
turning. The automatic air
supply control is operational
whenever you see your selec-
tion represented by a bar in the
Control Display's status line. The automatic
air distribution remains in operation as
before. You can reactivate the automatic
air supply mode with the AUTO button.
Air conditioner operation
The air conditioner cools and
dehumidifies the incoming air
before also reheating it as
required, according to temperature setting.
Depending on the weather, the windshield
may fog over briefly when the engine is
started.
The air conditioner comes on automatically
when you select the AUTO program.
Maximum cooling
Select this program to obtain
maximum cooling as quickly as
possible.
The temperature display reverts
to 61 7 (16 6) while the system switches
to the recirculated-air mode and starts to
provide maximum air supply through the instrument panel outlets only. For this
reason you should ensure that these
outlets are open before selecting this
program.
Outside air/AUC Automatic recircu-
lated-air control/Recirculated air
You can respond to unpleasant
odors or pollutants in the imme-
diate environment by tempo-
rarily suspending the flow of outside air.
The system then recirculates the air
currently 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
>Left-hand indicator lamp on Ð AUC
mode: the system detects pollutants in the
outside air and responds by deactivating
the outside air supply when required. The
system then recirculates the air currently
within the vehicle.
Depending upon air quality, in the auto-
matic mode the system may start to alter-
nate between its outside-air and
recirculated-air modes
>Right-hand indicator lamp on Ð Recircu-
lated-air mode: the supply of outside air
into the vehicle is permanently blocked.
The system then recirculates the air
currently within the vehicle.
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 air
supply as required.<
Residual heat mode
The system uses the warmth
stored in the engine to heat the
interior when the ignition is off,
for instance, while the vehicle is
stopped at a school to pick up a
child.
You can adjust the automatic climate
control's settings when the ignition lock is
in the radio mode. The system blows

A congenial climate
102 heated air into the interior in accordance
with the selected distribution pattern while
the ignition is off.
Provided that the engine has warmed
to its normal operating temperature
and the battery 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.<
Front ventilation You can adjust the vent outlets for the
upper body to suit your personal require-
ments.
You can use the serrated dials 1 to open
and close the outlets through an infinitely-
variable range, while the serrated dials 2
allow you to adjust the airflow direction. 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 ventilationSet the vent outlets so that the air flows
past you and is not directed straight at you.
The airflow temperatures for the indi-
vidual upper-body vent outlets can be
adjusted separately in the Control Display,
refer to page 104.
When the vent outlets are completely
closed, the vents at the top of the cockpit
provide indirect ventilation for the
passenger compartment.<
Ventilation for storage compartment
in front armrest You can use the serrated dial in the storage
compartment to open and close the vent
outlet.
Depending upon the temperatures
selected at the rear dials, high
temperatures may occur in the storage
compartment. Close the vent as required.< Rear ventilation The serrated dials 1 allow you to open and
close the ventilation outlets through an infi-
nitely-variable range.
You can adjust the airflow direction using
the levers 2
The serrated dials 3
* control the amount of
cooled air in the flow from the vent outlets:
Turn toward blue sector Ð colder
Turn toward red sector Ð warmer
This function allows you to make minor
adjustments for maximum comfort while
also letting you vary temperatures within
the storage compartment.

Practical interior accessories
110 lock and close the doors; this precaution
prevents children from using the sun blinds
and injuring themselves, etc.<
To automatically extend and retract
the sun blinds You can extend and retract the sun blinds
together by briefly pressing button 3. Rear cooler
*
The cooler is located behind the rear seats'
center armrest. To activate Press the button, see arrow 1, the indicator
lamp within the button comes on.
On vehicles equipped with a rear air
conditioner unit, once switched on
the rear cooler operates whenever the
engine is running.< To openPull the handle, see arrow 2To switch on/off in Control Display*
When you switch on the rear air
conditioner, this also activates the
rear cooler, which will then refrigerate its
contents whenever the engine is running.< 1.With the ignition on, select the Control
Center "Climate" menu
2.Select the second page of the
"Climate" menu
3.Select "Extra" and confirm your selec-
tion
4.Select "Rear refr. box" and confirm.
Select "Rear refr. box" a second time and
confirm to switch the unit off.
To openPull the handle, see arrow 2Glove compartment To openPress button. The glove compartment
opens automatically and the lamps come
on. To close Fold the cover up.
To prevent injury in the event of an
accident, close the glove compart-
ment immediately after use.<

Things to remember when driving
118
Things to remember when drivingBreak-in procedures To ensure that your vehicle continues to
furnish optimal economy of operation
throughout an extended service life, we
request that you devote careful attention to
the following section. Engine and differential The first 1,200 miles (2,000 km):
During this initial period you should attempt
to avoid constant, steady-state operation
and vary both vehicle and engine speeds
as often as possible. Until the break-in
period has been completed you should
also refrain from exceeding the following:
>4500 rpm and 105 mph (170 km/h)
Always obey all official speed limits.
Avoid full-throttle operation and use of the
transmission's kickdown mode during
these initial miles.
After the first 1,200 miles (2,000 km) you
can gradually increase both engine and
vehicle speeds to their respective maxima.
You should also comply with these break-in
procedures if the engine or differential is
replaced at a later point. Tires Due to technical factors associated with
their manufacture, tires do not achieve their
full traction potential until after an initial
break-in period. We thus urge you to drive
with extra care during the first 200 miles
(300 kilometers). Brake system Brakes require an initial break-in period of
approx. 300 miles (500 km) to achieve
optimal contact and wear patterns
between brake pads and rotors.
General driving notes High temperatures
Extreme temperatures occur at the
catalytic converter on this and every
catalyst-equipped vehicle. Do not remove
the heat shields installed adjacent to
various 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 the 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.Aquaplaning
When driving on wet or slushy roads,
reduce road speed. If you do not, a
wedge of water can form between tires and
road surface. This phenomenon is referred
to aquaplaning, and is characterized by a
partial or complete loss of contact between
tires and road surface, ultimately under-
mining your ability to steer and brake the
vehicle.<
Water-covered streets
Do not drive through water on the
road if it is deeper than 1 foot (30 cm),
and then only at walking speed at the most.
Otherwise, the vehicle's engine, the elec-
trical systems and the transmission may be
damaged.<

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
119
Brake system Braking with ABS The best way to achieve optimal response
from the ABS is to apply maximum pres-
sure to the brake pedal during emergencyÐ
panic stops. Since the vehicle maintains
steering responsiveness, you can never-
theless avoid possible obstacles with a
minimum of steering effort.
Pulsation at the brake pedal combines with
sounds from the hydraulic circuits to indi-
cate to the driver that ABS is in its active
mode.
Do not drive with your foot resting on
the brake pedal. Even light but
consistent pedal pressure can lead to high
temperatures, brake wear and possibly
even brake failure.< Disc brakes
Driving in wet conditions While driving in wet conditions and in
heavy rain, it is a good idea to apply light
pressure to the brake pedal every few
miles. Monitor traffic conditions to ensure
that this maneuver does not endanger
other road users. The heat generated in this
process helps dry the pads and rotors to
ensure that full braking efficiency will then
be available when you need it. Hills You can retain full and unimpaired braking
efficiency by downshifting to a gear in
which only minimal brake applications are
needed when descending long or steep
downhill stretches.
You can further enhance the engine's
braking effect by selecting a lower gear in
the automatic transmission's manual
mode, downshifting as far as first gear on
extremely steep stretches, refer to
page 68. This strategy helps you avoid
placing excessive loads on the brake
system.
Corrosion When the vehicle is driven only occasion-
ally, during extended periods when the
vehicle is not used at all, and in operating
conditions where brake applications are
less frequent, there is an increased
tendency for corrosion to form on rotors,
while contaminants accumulate on the
brake pads. This occurs because the
minimal pressure which must be exerted by
the pads during brake applications to clean
the rotors is not reached.
Should corrosion form on the brake rotors,
the brakes will tend to respond with a
pulsating effect that even extended appli-
cation will fail to cure.
Never allow the vehicle to coast with
the transmission in neutral Ð or with
the engine switched off; there is no engine
braking when the transmission is in neutral,
and no power-assist for brakes and
steering when the engine is not running.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
accelerator and brake pedals and obstruct
their movement.< Brake pads
If the brake pad wear indicator lamp
appears in the Check Control,
accompanied by a text: please take
careful note of the additional information in
the Control Display panel.
Warning lamp for Canadian models.
The brake pads have reached their
minimum pad thickness. Have them
replaced at your BMW center as soon as
possible.
For your own safety: use only brake
pads that BMW has released for your
particular vehicle model. Because BMW
cannot assess the suitability of other brake
pads for use on your vehicle, we are unable
to assume continued responsibility for the
vehicle's operating safety if non-approved
pads are installed.<

Refueling
168
Refueling Fuel filler door
Always switch off the engine before
refueling. If you do not, fuel cannot be
filled into the tank and a message in the
Check Control will appear.<
To open and close: press the rear edge of
the fuel filler door.
Manual release In the event of an electrical defect in the
system, you can release the fuel filler door
manually:
1.Lift the handle to remove the cover
panel on the right side of the luggage
compartment
2.Extract and then pull the handle with the
fuel pump symbol.
Always observe all applicable precau-
tions and regulations when handling
fuels. Never carry spare fuel containers in
your vehicle. Whether empty or full, these
containers can leak, cause an explosion,
and lead to fire in the event of a collision.<
Simple and environmentally friendly
When handling fuels always observe
any safety guidelines posted at the
filling station.<
Keep the filler cap in the bracket attached
to the fuel filler door.
When refueling, insert the filler nozzle
completely into the filler pipe. Pulling the
nozzle out of the pipe during refueling
>results in premature pump shutoff
>can lead to reduced efficiency in the
fuel-vapor recovery system.
The fuel tank is full when the filler nozzle
clicks off the first time.
Close the filler cap carefully after
refueling, continuing until you hear
the detent engage. While closing, be sure
not to pinch the strap between the cap and
the filler pipe. A loose or missing cap will
activate a message in the Check Control.<
Fuel tank capacity, approx. 23.2 US gallons
(88 litres), including the reserve capacity of
approx. 2.6 gallons (10 litres).
Never attempt to continue driving
until the tank is completely empty, as
engine functions could be affected, and the
vehicle could sustain damage as a result.<

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
169
Fuel specifications The engine uses lead-free gasoline only.
Required fuel:
>Premium Unleaded Gasoline,
min. 91 AKI.
AKI = Anti-Knock Index.
Do not use leaded fuels. The use of
leaded fuels will cause permanent
damage to the system's oxygen sensor and
the catalytic converter.<