2006 BMW 745i check engine

Controls
89Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Deactivating DTC
Select "DTC" again 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 is shown 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 stating that you
should stop is displayed, stop at a suitable loca-
tion and switch off the engine as soon as possi-
ble. 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, but instead contact
your BMW center.<
Self-leveling suspension*
Malfunction
The warning lamp for self-leveling sus-
pension lights up yellow and a message
is shown 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.

Lamps
100
Adaptive Head Light*
The concept
Adaptive Head Light is a variable headlamp
control system that enables dynamic illumina-
tion of the road surface. Depending on the
steering angle and other parameters, the light
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.<
High-beam assistant*
The concept
This system automatically switches the high
beams on and off again. A sensor on the front of
the inside rearview mirror controls this process.
The assistant ensures that the high beams are
switched on whenever the traffic situation
allows. This reduces the strain on you while at
the same time providing you with the best pos-
sible visibility. Of course, you can intervene at
any time and switch the high beams on and off
in the accustomed manner.
Activating high-beam assistant
1.Turn the light switch to switch position3,
refer to page99.
2.Press the turn signal lever in the high beam
direction with the low beams switched on.
The indicator lamp in the instrument
cluster lights up when the high-beam
assistant is activated. The assistant
automatically switches between high and low
beams, whereby the system reacts to oncom-
ing traffic and traffic ahead, as well as to suffi-
cient lighting, e.g. towns/cities.

Controls
111Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Practical interior accessories
Integrated universal remote
control*
The concept
The integrated universal remote control can
replace as many as three hand-held transmit-
ters for various remote-controlled accessories,
such as door openers and house alarm sys-
tems. The integrated universal remote control
registers and stores signals from the original
hand-held transmitters.
The signal of an original hand-held transmitter
can be programmed into one of the three mem-
ory buttons1. Then the respective devices can
be actuated using the programmed memory
buttons. The LED2 flashes to confirm trans-
mission of the signal.
Should you sell your vehicle one day, be sure to
delete the stored programs beforehand for your
security, refer to page112.
To prevent possible damage or injury,
during programming or before each use
of the programmed device by the integrated
universal remote control, always inspect the
immediate area to make certain that no people,
animals or objects are within the swiveling and
movement range of the device. Also, comply
with the safety precautions of the original hand-
held transmitter.<
Checking compatibility
If you see this symbol on the packaging
or in the manual supplied with the orig-
inal hand-held transmitter, it is safe to
assume that it is compatible with the integrated
universal remote control.
If you have additional questions, please contact
your BMW center or call: 1-800-355-3515.
Information is also provided on the Internet at:
www.bmwusa.com or
www.homelink.com.
HomeLink is a registered trademark of
Johnson Controls, Inc.
Programming
1Memory buttons
2LED
Fixed-code hand-held transmitters
1.Switch on the ignition.
2.When using for the first time: press both
outer buttons1 for approx. 20 seconds,
maintaining pressure until the LED2 starts
to flash. The three memory buttons1 are
cleared.
3.Hold the original hand-held transmitter at a
distance of approx. 2in/5cm to 8in/20cm
from the memory buttons1.
The required distance between the
hand-held transmitter and memory
buttons1 depends on the relevant system
of the original hand-held transmitter used.<
4.Simultaneously press the transmit button
on the original hand-held transmitter and
the desired memory button1 of the inte-
grated universal remote control. The LED2
flashes slowly at first. As soon as the LED2
flashes rapidly, release both buttons. If the
LED2 does not flash rapidly after approx.
15 seconds, alter the distance.
5.To program other original hand-held trans-
mitters, repeat steps 3 and 4.
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.

Under the hood
202
Engine compartment
1Brake fluid reservoir, located beneath the
microfilter cover204
2Reservoir for windshield and headlamp
washer system663Engine oil filler neck, refer to Adding engine
oil
4Body ground, negative terminal213
5Coolant expansion tank204
6Jump starting terminal214
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
203Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
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.
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; observe the instruc-
tions on the containers.<

Under the hood
204 Always observe all applicable environ-
mental laws and regulations when dis-
posing of used coolant additives.<
Checking coolant level
1.The engine must be at ambient tempera-
ture.
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.
Brake system
Malfunction
Brake fluid
The warning lamp lights up and a mes-
sage is shown on the Info Display: stop
immediately.
The brake fluid in the reservoir has fallen to
below the minimum level. At the same time, a
considerably longer brake pedal travel may be
noticeable. Have the system checked immedi-
ately.Warning lamp on Canadian models
During continued driving increased brake
pedal travel may be necessary, and con-
siderably longer braking distances may result.
Please adapt your driving style accordingly.<
Brake pads
For messages and indicator lamps on the Info
Display, refer to page80.
For your own safety: use only brake pads
that BMW has approved for your particu-
lar vehicle model. As 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.<

Mobility
205Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Maintenance
The 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.
You can have the remaining times or distances
to selected maintenance requirements as well
as legally required deadlines displayed on the
Control Display, 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
Your vehicle stores this information continu-
ously in the ignition key while the vehicle is
being driven. After accessing the data stored in
the vehicle key, your BMW Service Advisor can
suggest precisely the right array of service pro-
cedures for your own individual vehicle. This is
why it is important when you take your vehicle in
for service to give the BMW Service 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. Have the time-
dependent service and maintenance opera-
tions, such as brake fluid and coolant, and if
necessary engine oil and the micro/activated
charcoal filter, updated by a BMW center.<
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
206
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 must 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.