2008 BMW 750LI check engine

Controls
89Reference
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Mobility
Deactivating DTC
Select "DTC" and press the controller.
The LED on the Control Display and the DTC
indicator lamp on the Info Display go out.
Dynamic Drive
The concept
Dynamic Drive minimizes body roll and opti-
mizes vehicle stability during cornering and
evasive maneuvers.
Active stabilizers at the front and rear axles form
the basis for Dynamic Drive. Suspension com-
pliance adapts to suit driving conditions, vary-
ing from performance-oriented during corner-
ing to smooth and comfort-oriented when the
vehicle is traveling in a straight line. During vehi-
cle operation, the system 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 yellow and
a message appears on the Info Display.
A malfunction has occurred in the
Dynamic Drive system. Have the system
checked as soon as possible.
If a malfunction occurs, please remember
to adapt your speed accordingly, espe-
cially 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 Check Control message indicates an oil loss,
stop as soon as possible at a suitable location
and switch off the engine. Do not continue driv-
ing, contact your BMW center.
Self-leveling suspension*
Malfunction
The warning lamp for self-leveling sus-
pension lights up yellow and a message
appears on the Info Display.
A malfunction has occurred in the level control
system.
Stop driving and check the vehicle:
>The vehicle is considerably lower at the rear
than at the front, possibly also on one side,
at the rear left compared to the rear right.
>The ground clearance is reduced or the
driving comfort is noticeably reduced.
>The position of the vehicle is normal, but a
malfunction is indicated.
Drive to the nearest BMW center or a workshop
that works in accordance with BMW guidelines
and uses appropriately trained personnel. Drive
with appropriate caution in the meantime.
EDC Electronic Damping
Control*
If the influencing variables such as road surface
quality or operating conditions such as steer-
ing, braking etc. change, the damping automat-
ically adjusts to the new conditions.
iDrive, for principle details, refer to page16.
1.Press the button to open the start
menu.
2.Move the controller toward "Settings".
3.Select "Vehicle" and press the controller.
4.Select "EDC" and press the controller.

Controls
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Mobility
from the headlamp follows the course of the
road.
Activating Adaptive Head Light
In switch position3, the Adaptive Head Light is
activated and Automatic headlamp control is
switched on.
In order not to blind oncoming traffic, the Adap-
tive Head Light is not active when driving in
reverse and only points toward the passenger
side when the vehicle is stationary.
Malfunction
The LED above the symbol for automatic head-
lamp control flashes. Adaptive Head Light is
malfunctioning or has failed. Have the system
checked as soon as possible.
High beams/
roadside parking lamps
1High beams
2Headlamp flasher
3Roadside parking lamps
Roadside parking lamps, left and right*
You also enjoy the option of lighting up just one
side of your vehicle when parking:
After parking the vehicle, press the lever in the
desired direction3, past the resistance point.
The roadside parking lamps drain the bat-
tery. Do not leave them switched on for
long periods of time; otherwise, it may no longer
be possible to start the engine.<
Front fog lamps
Briefly press the button to switch on/off.
The parking lamps or low beams must be
switched on for the fog lamps to operate. The
green indicator lamp on the Info Display lights
up whenever the fog lamps are on.
If the automatic headlamp control is acti-
vated, the low beams will come on auto-
matically when you switch on the fog lamps.<
Instrument lighting
You can adjust the lighting intensity with the
knurled wheel.
Interior lamps
The interior lamps, footwell lamps, door entry
lighting, the perimeter lighting, and the luggage
compartment lamps are controlled automati-
cally.

Practical interior accessories
112 The corresponding memory button1 is now
programmed with the signal of the original
hand-held transmitter.
You can operate the system when the engine is
running or when the ignition is switched on.
If the device cannot be used after
repeated programming, check whether
the original hand-held transmitter uses an alter-
nating-code system. To do so, either read the
instructions of the original hand-held transmit-
ter or press and hold down the programmed
memory button1 of the integrated universal
remote control. If the LED2 on the integrated
universal remote control flashes rapidly for a
short time and then remains lit for approx.
2 seconds, then this indicates that the original
hand-held transmitter is equipped with an alter-
nating-code system. In the case of an alternat-
ing-code system, program the memory but-
tons 1 as described in the Alternating-code
hand-held transmitters section below.<
Alternating-code hand-held
transmitters
Consult the operating instructions of the unit
you wish to set when programming the univer-
sal remote control. You will find information
there on the possibilities for synchronization.
When programming hand-held transmitters
that employ an alternating code, please follow
the supplementary instructions below:
Programming will be easier with the aid of
a second person.<
1.Park your vehicle within the range of the
remote-controlled device.
2.Program the integrated universal remote
control as described above in the Fixed-
code hand-held transmitters section.
3.Locate the button on the receiver of the
device you want to set up, e.g. on the upper
section of its drive unit.
4.Press the button on the receiver of the
device you want to set up. After step 4, you
have approx. 30 seconds for step 5.5.Press the programmable memory button1
on the integrated universal remote control
three times.
The corresponding memory button1 is now
programmed with the signal of the original
hand-held transmitter.
If you have any additional questions,
please contact your BMW center.<
Deleting stored programs
Press the left and right memory buttons1 for
approx. 20 seconds until the LED2 flashes rap-
idly:
All stored programs are deleted.
It is not possible to delete individual programs.
Roller sun blinds*
Rear window blind
Briefly press the button on the driver's door with
the ignition in radio ready state or higher.
Roller sun blinds for rear side windows
1Quarter window blind
2Side window blind
3Rear window blind

Under the hood
208
Engine compartment
1Wiper fluid filler neck66
2Engine oil filler neck, refer to Adding engine
oil3Body ground, negative terminal220
4Coolant expansion tank210
5Jump starting terminal220
Engine oil
The engine oil consumption depends on driving
style and driving conditions.
Checking oil level
Your vehicle is equipped with an electronic oil
level control.
To obtain the most accurate possible oil level
reading, the measurement should be taken
when the engine is at operating temperature,
i.e. following an uninterrupted drive of at least
6 miles/10 km. You can display the oil level
while driving or when stopped on a level surface
with the engine running.
The current oil level can be viewed on the Con-
trol Display.
iDrive, for principle details, refer to page16.1.Press the button to open the start
menu.
2.Move the controller toward "Car Data".
3.Select and press the controller.
The oil level is displayed.
Turn the controller to exit the list.

Mobility
209Reference
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Possible displays
>"Update of engine oil level in process".
>"Engine oil level O.K.".
>"Oil level at minimum! Add 1 quart engine
oil": add a maximum of 1 quart/1 liter of
engine oil at the earliest opportunity, refer
to Adding engine oil.
>"Oil level under min.! Add 1 quart engine
oil": add a maximum of 1 quart/1 liter of
engine oil at the earliest opportunity, refer
to Adding engine oil.
>"Engine oil level too high".
Have vehicle checked immediately;
otherwise, overfilled oil can lead to
engine damage.<
>"No measurement possible at this time".
Adding engine oil
Do not add oil until a Check Control message
appears.
Add oil within the next 125 miles/200 km;
otherwise, the engine could be dam-
aged.<
Keep oil, grease, etc. out of reach of chil-
dren and heed warnings on the contain-
ers to avoid health risks.<
Oil changing
Only have an oil change carried out by a BMW
center or a repair shop that works in accordance
with BMW guidelines and uses appropriately
trained personnel.
Approved engine oils
The quality of the engine oil selected has critical
significance for the operation and service life of
an engine. BMW continuously approves spe-
cific engine oils after confirming their suitability
for use in its vehicles with extensive testing.
Use only approved BMW High Performance
Synthetic Oil.
If BMW High Performance Synthetic Oil is
unavailable, you can add small quantities of
other synthetic oils between oil changes. Use
only oils of the specification API SH or higher.
Your BMW center will be happy to answer
detailed questions on BMW High Perfor-
mance Synthetic Oil or approved synthetic
oils.<
You can also call BMW of North America at
1-800-831-1117 or visit the website at
www.bmwusa.com to obtain this information.
Never use oil additives as they can dam-
age your engine under some circum-
stances.<
Viscosity grades
The viscosity is a measure of the thickness of
the oil and is specified in SAE grades.
The choice of the right SAE grade is based on
the climatic conditions in the region in which
you normally drive your BMW.
Approved oils belong to the SAE grades
5W-40 and 5W-30.<
These oils can be used for driving at all outside
temperatures.

Under the hood
210
Coolant
Do not open the cooling system when the
engine is hot. Escaping coolant can cause
burns.<
Coolant consists of water and supplemental
antifreeze and anticorrosion agents. Not all
commercially available additives are suitable for
your BMW. Ask your BMW center for suitable
additives.
Only use suitable additives; otherwise,
engine damage may result. The additives
present a health hazard; follow the instructions
on the containers.<
Always follow all applicable environmen-
tal laws and regulations when disposing
of used coolant additives.<
Checking coolant level
1.Allow engine to cool.
2.Turn the cap of the expansion tank counter-
clockwise to allow any accumulated pres-
sure to escape, then continue turning to
open.
3.The coolant level is correct when the cool-
ant extends to between the MIN and MAX
marks on the filler neck, refer to the diagram
adjacent to the filler neck.
4.If the coolant is low, slowly add coolant up to
the specified level – do not overfill.
5.Twist closed the cap and tighten firmly.
6.Have the reason for the coolant loss elimi-
nated as soon as possible.

Mobility
211Reference
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Controls
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Maintenance
BMW Maintenance System
The BMW Maintenance System serves to
retain the operating and road safety of your
BMW. The service schedule also includes oper-
ations related to the vehicle's comfort and con-
venience features, such as replacement of the
filters for the inside air. The aim is to optimize
maintenance procedures with a view to reduc-
ing the cost of running the 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 inestimable value.
CBS Condition Based Service
Sensors and special algorithms take the differ-
ent driving conditions of your BMW into
account. As a result, Condition Based Service
determines the current and future maintenance
requirements. By letting you define a service
and maintenance regimen that reflects your
own individual requirements, the system forms
the basis for trouble-free driving.
On the Control Display, you can have the
remaining times and distances for selected
maintenance procedures and any legally man-
dated deadlines displayed, refer to page78:
>Engine oil
>Brakes, separate for front and rear
>Microfilter
>Brake fluid
>Spark plugs>Vehicle check
>Legally prescribed inspections depending
on national regulations
Service data in the remote control
Your vehicle continuously stores service-
requirement information in the remote control
while you are driving. After accessing the data
stored in the vehicle key, your BMW Service
Advisor can suggest precisely the right array of
service procedures for your own individual vehi-
cle. This is why it is important when you take
your vehicle in for service to give the BMW Ser-
vice Advisor the last remote control you used
for driving.
Storage periods with the battery discon-
nected are not taken into account by the
CBS maintenance system. If this occurs, have a
BMW center update the time-dependent main-
tenance procedures, such as checking brake
fluid and if necessary engine oil and the micro/
activated charcoal filter.<
Service and Warranty Information
Booklet for US models and
Warranty and Service Guide Booklet
for Canadian models
Please consult your Service and Warranty Infor-
mation Booklet for US models and Warranty
and Service Guide Booklet for Canadian models
for additional information on service require-
ments.
BMW recommends that you have service
and repair operations performed at your
BMW center.
Take the time to ensure that these service pro-
cedures are confirmed by entries in your vehi-
cle's Service and Warranty Information Booklet
for US models and Warranty and Service Guide
Booklet for Canadian models. These entries
verify that your vehicle has received the speci-
fied regular maintenance.<

Maintenance
212
Socket for OBD Onboard
Diagnostics
Components which are decisive for the
exhaust-gas composition can be checked via
the OBD socket with a device.
This socket is located to the left on the driver's
side, on the underside of the instrument panel
under a cover.
Emissions values
The warning lamp lights up. The emis-
sions values are deteriorating. Have the
vehicle checked as soon as possible.
Display of the previously described
malfunction on Canadian models.
Under certain circumstances, the warning lamp
will flash. This is a sign of excessive misfiring of
the engine. In this case you should reduce
speed and drive to the nearest BMW center as
soon as possible. Serious engine misfiring,
even for only a short period of time, can seri-
ously damage emission control components,
especially the catalytic converter.
If the fuel filler cap is not properly tight-
ened, the OBD system can detect the
vapor leak and the indicator lamp will light up. If
the cap is then tightened, the display should go
out within a few days.<
Event Data Recorders
Your vehicle may be equipped with one or sev-
eral measuring and diagnosis modules, or with a
device for recording or transmitting certain
vehicle data or information. If you have also
signed a contract of participation for BMW
Assist, certain vehicle data can be transmitted
or recorded to enable corresponding services.
Care
You can find useful information on caring for
your BMW in the Caring for your vehicle bro-
chure.