2002 BMW 745LI SEDAN differential

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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.

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.<

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177
Adding engine oil Wait until the level has dropped to just
above the lower mark before adding oil.
BMW engines are designed to
operate without additives, and their
use could even lead to damage in some
cases. This also applies to the automatic
transmission, the differential and the power
steering system.<
Recommendation: have your oil changed at
your BMW center.
Continuous exposure to used oil has
caused cancer in laboratory testing.
For this reason, any skin areas that come
into contact with oil should be thoroughly
washed with soap and water.
Always store oil, grease, etc., well out of
the reach of children; always observe all
warning labels on the containers.<
Please observe all environmental-
protection rules and regulations when
disposing of used oil.< Specified engine oils The quality of the engine oil selected has
critical significance for the operation and
service life of an engine. BMW approves
only specific oils after confirming their suit-
ability for use in its vehicles with extensive
testing.
Use only approved BMW High Perfor-
mance Synthetic Oil.
If you are unable to obtain BMW High
Performance Synthetic Oil, you can add
small amounts of another synthetic oil
between oil changes. Use only oils with the
API SH specification or higher. Ask your BMW center for details
concerning the specific BMW High
Performance Synthetic Oil or synthetic oils
which have been approved.<
You can also call BMW of North America at
1-800-831-1117 or visit this website:
www.bmwusa.com to obtain this informa-
tion.
Viscosity ratingsViscosity is the oil flow rating as defined in
SAE classes.
The selection of the correct SAE class
depends on the climatic conditions in the
area where you typically drive your BMW.
Approved oils are in SAE classes
5W-40 and 5W-30.<
These oils may be used for driving in all
ambient temperatures.Coolant
Do not add coolant to the cooling
system when the engine is hot.
Escaping coolant can cause burns.
To avoid the possibility of damage later on,
never use anything other than factory-
approved, nitrite and amino-free extended-
duty antifreeze with corrosion inhibitor.
Your BMW center is familiar with the official
specifications.
Antifreeze and anticorrosion agents are
hazardous to health. Always store these
agents in tightly-closed original containers
kept well away from the reach of children.
Extended-duty antifreeze with corrosion
inhibitor contains ethylene glycol Ð a flam-
mable substance. For this reason, do not
spill antifreeze with corrosion inhibitor on
hot engine parts. It could ignite and cause
serious burns.<
Always observe all applicable rules
and regulations for environmental
protection when disposing of used
extended-duty antifreeze with corrosion
inhibitor.<

Technical data
194
Weights Never exceed either the approved axle
loads or the gross vehicle weight. Capacities
BMW 745i
BMW 745Li
Vehicle curb weight: incl. one person,
full tank of fuel, ready for operation,
without options lbs./kg 4376/1985 4464/2025
Approved gross vehicle load lbs./kg 5434/2465 5523/2505
Approved front axle load lbs./kg 2557/1160 2602/1180
Approved rear axle load lbs./kg 2987/1355 3020/1370
Approved roof load lbs./kg 220/100
Luggage compartment capacity cu ft/l 17.7/500
Notes
Fuel tank
Reserve gal./liters
gal./litersapprox. 23.2/88
approx. 2.6/10 Fuel specification: page 169
Windshield washer reser-
voir incl. headlamp wipe/
wash system quarts/liters approx. 8.2/7.8 For details: page 73
Cooling system including
heater circuit quarts/liters 14.8/14.0 For details: page 177
Engine oil and filter change quarts/liters 8.5/8.0 BMW High Performance
Synthetic Oil
Specifications: page 177
Automatic transmission
and differential ÐLifetime fluid,
no fluid change required