2003 BMW 760LI SEDAN check engine

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difficult driving conditions, such as on
snow, etc.
Indicator lamps
The indicator lamp in the Info Dis-
play 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.
The indicator lamp and the brake
warning lamp remain on continu-
ously:
DSC, DTC and DBC have been
deactivated or a system malfunc-
tion is present.
When the system is off, the stability main-
tenance functions described above are no
longer available. The vehicle will remain
completely operational, however, without
DSC.
Please respond to any malfunctions by
referring the problem to your BMW center.
Indicator and warning lamps on
Canadian models.
Activating DTC Dynamic Traction
Control
You may find it useful to briefly activate
DTC under the following special circum-
stances: >When rocking the vehicle and starting
off in deep snow or on loose road sur-
faces
>When ascending snow-covered hills,
and when driving in deep or on hard-
packed snow
>When driving with snow chains.
Select "Settings". Select "DTC" and con-
firm your entry. DTC is now activated. The
DTC indicator lamp in the Info Display
lights up.
When DTC is active, DSC provides
only limited system response up to a
speed of approximately 45 mph (70 km/h).
Control intervention to maintain stability is
reduced.<
Deactivating DTC
Select "Settings". Select "DTC" and con-
firm your entry. DTC is now deactivated.
The DTC indicator lamp in the Info Display
goes out.
Deactivating DSC
Select "Settings". Select "DSC" and con-
firm your entry. DSC is deactivated. The
indicator lamp in the Info Display remains
on continuously.
Deactivating DSC automatically deacti-
vates DTC as well. The systems for
enhancing stability and traction are deacti-
vated, and there is no active braking inter-
vention or torque control.
A status report appears in the Check Con-
trol. Please take note of the additional
information in the Control Display.

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Check Control messages, refer to page 85.
Please note the supplementary information
provided in the Control Display.
Indicator and warning lamps on
Canadian models.
Dynamic Drive
The concept
Dynamic Drive minimizes body roll and
optimizes vehicle stability during cornering
and evasive maneuvers.
Active stabilizers at the front and rear axles
form the basis for Dynamic Drive. Suspen-
sion compliance adapts to suit driving con-
ditions, 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 con-
tinuously 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. Please take note of
the additional information in the Control
Display.
You can find more detailed information on
the Check Control starting on page 85.
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 ten-dency to tilt during cornering and in cross-
winds.
If a Check Control message stating that
you should stop appears in addition to the
red symbol, stop immediately and switch
off the engine. In this case the oil level in
the reservoir may have dropped below the
minimum, possibly owing to a leak in the
hydraulic system.
Please observe the additional instructions
provided in the Control Display.<
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 program
Activate in "Settings" menu with the igni-
tion on.
You should select the Sport program for
consistently performance-oriented
response from shock absorbers and
steering.

Technology for comfort, convenience and safety
98
Flat Tire Monitor*
The concept
The Flat Tire Monitor keeps track of the
inflation pressures in your tires as you
drive. The system provides an alert when-
ever the inflation pressure drops signifi-
cantly below the specified pressure in one
or more tires.
In order for the Flat Tire Monitor to 'learn'
the correct tire inflation pressure, check the
inflation pressure in all tires against the
inflation pressure table on page 185 and
make corrections as necessary. Then pro-
ceed to initialize the system.
This symbol will appear in the
Check Control to inform you that
the inflation pressure of a tire has
fallen significantly. A text message appears
at the same time.
Please take note of the additional informa-
tion in the Control Display.
You can find more information on the
Check Control starting on page 85.
The Flat Tire Monitor cannot indicate
sudden severe tire damage caused
by outside factors and does not detect a
natural, even pressure drop in all four
tires.<
Initializing the system
1.Switch ignition on, do not start the
engine
2.Select "RPA" from the "Settings" menu
and confirm your selection. The initial-
ization menu appears.
"YES"
Select and confirm. The Flat Tire Monitor
starts an automatic 'learning' process as
the car is driven, and memorizes these ref-
erence pressures. This one-off learning
takes at least 10 minutes, after which the
Flat Tire Monitor is able to detect and indi-
cate a flat tire.
Repeat this process after any changes in
tire inflation pressure, tire rotation or
replacement.
"NO"
Select and confirm to return to the "Set-
tings" menu.
Flat tire
The symbol will light up red, accompanied
by a status message in the Check Control.
>Vehicles with standard tires:
If this occurs, reduce vehicle speed
immediately and stop the vehicle. Avoid
hard and sudden steering and braking
maneuvers. Replace the defective tire
>Vehicles with run-flat tires:
If this occurs, carefully but quickly
reduce vehicle speed to below 50 mph
(80 km/h). Avoid hard and sudden
steering and braking maneuvers.
Additional information on run-flat tires
is provided on page 186.
Please take note of the additional informa-
tion in the Control Display.

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undermining your ability to steer and brake
the vehicle.<
Driving through water
Do not drive through water on the
road if it is deeper than 1 ft (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.<
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 con-
sistent 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 bra-
king effect by selecting a lower gear in the
automatic transmission's manual mode,
downshifting as far as first gear on extre-
mely steep stretches, refer to page 68. This
strategy helps you avoid placing excessive
loads on the brake system.
Never allow the vehicle to coast with
the transmission in Neutral Ð or with
the engine switched off Ð there is no engine
braking when the transmission is in Neu-
tral, 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.<
Corrosion
When the vehicle is driven only occasio-
nally, 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 ten-
dency 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 pul-
sating effect that even extended applica-
tion will fail to cure.
Brake pads
If the brake pad wear warning lamp
appears in the Check Control,
accompanied by a text: please take
careful note of the additional information in
the Control Display.

Refueling
182
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.Take the button with the fuel pump
symbol from the bracket and pull it to
unlock the fuel filler door.
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 fil-
ling station.<
Put the filler cap in the bracket attached to
the fuel filler door.
When refueling, insert the filler nozzle com-
pletely 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 refu-
eling, continuing until you hear the
detent engage. While closing, be sure not
to squeeze the strap which is fastened to
the cap. A loose or missing cap will activate
a message in the Check Control.<
Fuel tank capacity: approx. 23.2 US gallons
(88 liters), including the reserve capacity of
approx. 2.6 gallons (10 liters).
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.<

Under the hood
190
Engine compartment
1Engine oil dipstick, see below,
Checking oil level
2Brake fluid reservoir, located beneath
the microfilter cover192
3Reservoir for windshield and headlamp
washer system73
4Engine oil filler neck191
5Coolant expansion tank192
6Auxiliary terminal for jump starting203
Engine oil
Checking oil level
1.Park the vehicle on a level surface
2.Switch the engine off after it has
reached normal operating temperature
3.After approx. 5 minutes, pull the dip-
stick out and wipe it off with a clean lint-
free cloth, paper towel, or similar mate-
rial
4.Carefully push the dipstick all the way
into the guide tube and pull it out again
5.The oil should extend to between the
two marks on the dipstick.
As is the case with fuel economy, the rate
at which the engine uses oil is strongly
influenced by driving style and operating
conditions.

Under the hood
192
Checking coolant level
Correct coolant level with the engine cold
Ð approx. +687 (206):
1.Turn the cap of the expansion tank
counterclockwise to allow any accumu-
lated pressure to escape, then continue
turning to open
2.The coolant level is correct when the
coolant extends to between the MIN
and MAX marks on the filler neck, refer
to the diagram adjacent to the filler
neck
3.If the coolant is low, slowly add coolant
up to the specified level Ð do not overfill.
Brake fluid
The symbol lights up and a mes-
sage appears in the Check Control
panel:
The brake fluid in the reservoir has fallen to
below the minimum level.
The brake fluid reservoir is located under
the microfilter housing trim panel on the
driver's side of the vehicle. To have brake
fluid added to the system, or to have the
source of any brake fluid loss traced and
rectified, please contact your BMW center,
which can also supply the factory-
approved Ð DOT 4 Ð brake fluids.
Brake fluid is hygroscopic: it absorbs
moisture from the atmosphere over
the course of time.
To ensure that the brake system continues
to provide safe and reliable performance,
remember to have the brake fluid changed
every two years at the latest, refer to
page 84 and to the Service and Warranty Information Booklet for US models or the
Warranty and Service Guide Booklet for
Canadian models.
Brake fluid is toxic and also damages
vehicle paintwork. Always store these
agents in tightly-closed original containers
kept well away from the reach of children.
Do not spill the fluid and do not refill the
brake fluid reservoir to beyond the MAX
mark. Should it come into contact with hot
engine components, the brake fluid could
ignite and cause personal injury in the form
of burns.<
Always observe all applicable envi-
ronmental rules and regulations when
disposing of used brake fluid.<
Warning lamp for Canadian models.
Brake hydraulic systems
A low brake-fluid level combined with
longer-than-usual pedal travel could be a
sign that one of the brake system's
hydraulic circuits has failed.
Proceed to the nearest BMW center.
Remember that pedal travel may be
increased, and there may also be a sub-
stantial increase in the amount of pedal
pressure required to brake the vehicle.
Please adapt your driving style accor-
dingly.<

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Maintenance
The BMW Maintenance
System
The BMW Maintenance System is desi-
gned to ensure that your vehicle will con-
tinue to furnish consistent reliability com-
bined with optimal safety. The service
schedule also includes operations related
to the vehicle's comfort and convenience
features, such as replacement of the filters
for the inside air. The ultimate object is to
furnish economical maintenance by provi-
ding the ideal service for your individual
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
CBS is a more advanced version of the Ser-
vice Interval Display. Sensors combine with
highly-specialized algorithms to supply
service information that reflects your
vehicle's actual operating conditions more
precisely than ever before.
The system now furnishes individual dis-
plays of the times remaining until the dead-
lines for specific service operations as well
as official state inspections:
>Engine oil
>Brakes Ð separate for front and rear
>Particle/activated-charcoal filter
>Brake fluid >Spark plugs
>Vehicle check
>Coolant
>Official state inspections.
CBS monitors both current and upcoming
service requirements. After accessing the
data stored in the vehicle's key, your BMW
service advisor is able to suggest precisely
the right array of service procedures for
your own individual vehicle.
By letting you define a service and mainte-
nance regimen that reflects your own indi-
vidual requirements, Condition Based Ser-
vice builds the basis for trouble-free
driving.
You can find more detailed information on
the Service Interval Display on page 83.
Service and Warranty Information
Booklet for US models and Service
Guide Booklet for Canadian models
Please consult your Service and Warranty
Information Booklet for US models and
Service Guide Booklet for Canadian
models for additional information on ser-
vice 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 Service
Guide Booklet for Canadian models. These
entries verify that your vehicle has received
the specified regular maintenance, and
may also be required when submitting war-
ranty claims.<
Care
You can find everything you need to know
on this topic by consulting the separate
Care manual.