2008 BMW M3 ECU

M3Owner's Manual for Vehicle
Congratulations, and thank you for choosing a BMW M3.
Thorough familiarity with your vehicle will provide you with
enhanced control and security when you drive it. We therefore
have this request:
Please take the time to read this Owner's Manual and familiarize
yourself with the information that we have compiled for you
before starting off in your new vehicle. It contains important data
and instructions intended to assist you in gaining maximum use
and satisfaction from your BMW M3's unique range of technical
features. The manual also contains information on maintenance
designed to enhance operating safety and contribute to main-
taining the value of your BMW M3 throughout an extended ser-
vice life.
This manual is supplemented by a Service and Warranty Informa-
tion Booklet for US models or a Warranty and Service Guide
Booklet for Canadian models.
We wish you an enjoyable driving experience.
BMW AG

At a glance
19Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Operating principle at a glance
The following is a general description of opera-
tions using iDrive.For an exemplary step-by-step application refer
to Setting the time, page74.
1Selecting a menu item:
>Turn the controller; the highlight marker
moves
>Menu items in white can be selected by
highlighting them
2Activating a menu item:
>Press the controller
>New menu items are displayed or the
function is executed
3Selecting a menu item: refer to14Switching between fields:
>Briefly move the controller to the left,
right, forward, or backward
>Release the controller
>The active field is brighter in color
5Adjusting settings:
>Turn the controller
>Graphic display, numerical value or text
displays can be changed
>Confirm by changing the field

At a glance
21Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Switching assistance window on/off
1.Move the controller to the right to change to
the assistance window and press the con-
troller.
2.Select "Assist. window off" and press the
controller.
To turn back on, switch to the assistance win-
dow and press the controller.
Switching Control Display
off/on
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.
3.Select "Display off" and press the control-
ler.
Press the controller to switch on.
Programmable memory keys
Using the programmable memory keys, you can
store and execute certain iDrive functions:
>Navigation
* destinations>Entertainment:
>Radio stations
>CD
>CD compartment of CD changer
>AUX
>Telephone: phone numbers
The assignment of the programmable memory
keys is stored for the remote control currently in
use.
Storing functions
Navigation* destinations
1.Select the navigation destination, e.g. in the
destination list or address book.
2. ... Press the key longer than
2seconds.
Special features:
>If destination guidance and the map view
have been started, the current destination is
stored.
>If the destination is entered via map, the
coordinates in the cross-hairs are stored,
not the current destination.
Telephone, phone numbers
1.Enter the phone number or select the num-
ber from a list of stored phone numbers, e.g.
the A-Z list.
2. ... Press the key longer than
2seconds.
If the phone number is associated with a name,
the name is also stored.
Entertainment
The item stored in the Entertainment menu is
the source that is playing at the time of storage,
e.g. a radio station, irrespective of what was
selected on the Control Display.
1.Select the desired function, e.g. radio sta-
tion or CD.
2. ... Press the key longer than
2seconds.

iDrive
22 If the car is equipped with two drives and a
CD with compressed audio files is played,
the current track is stored.<
Executing a function
... Press the key.
The function is executed immediately. This
means that, for example, if a phone number is
selected, the connection is established, or if a
navigation destination is called up, destination
guidance is started.
Displaying memory key assignments
You can have the assignment of a memory key
displayed by touching the key with your finger.
Please do not wear gloves when doing so.
Touching the keys with an object such as a pen
will not work.
Displaying brief information
... Touch the key.
The key assignment is displayed.
Navigation destination
Entertainment source
Telephone, phone number
Not assigned
Displaying detailed information
... Touch the key for a longer
period.
Clearing key assignments
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.3.Select "Settings" and press the controller.
4.Select "Vehicle / Tires" and press the con-
troller.
5.Select "Programmable Memory Keys" and
press the controller.
6.Select "Delete assignment of all memory
keys" and press the controller.
7.Select "Yes" and press the controller.

Controls
51Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Transporting children safely
The right place for children
Do not leave children unattended in the
vehicle, otherwise they could endanger
themselves and/or other persons by opening
the doors, for example.<
The rear center seat is not suitable for installing
child-restraint systems for all age groups,
approved for the age group in question.
Children always in the rear
Accident research has shown that the safest
place for children is on the rear seat.
Children under the age of 13 or smaller
than 5 ft/150 cm may be transported only
in the rear in suitable child-restraint systems
appropriate for their age, weight and size. Oth-
erwise there is an increased risk of injury in the
event of an accident.<
Children 13 years of age or older must be buck-
led in with a safety belt as soon as there no
longer is any child-restraint system that is
appropriate for their age, size and weight.
Exception for front passenger seat
Should it be necessary to use a child-
restraint system on the front passenger
seat, the front and side airbags for the front pas-
senger must be deactivated. Otherwise, a child
traveling on that seat will face a significant risk
of injury if the airbags are triggered off, even
with a child-restraint system.<
For more information on automatic deactivation
of the front passenger airbags refer to page90.
Installing child-restraint
systems
Observe the child-restraint system man-
ufacturer's instructions when selecting,
installing and using child-restraint systems.
Otherwise the protective effect may be dimin-
ished. to be secured with a lap belt or with the lap-belt
section of a lap-and-shoulder belt. Incorrectly
or improperly installed child-restraint systems
can increase the risk of injury to children.
Always follow the installation instructions for
the system with the greatest care.
On the front passenger seat
After installing a child-restraint system on
the front passenger seat, make sure that
the front and side airbags for the front passen-
ger are deactivated, otherwise there is an
increased risk of injury if the airbags deploy.<
Backrest width*
The backrest width of the front passen-
ger's seat must be at its widest possible
setting. Do not change the setting after install-
ing the child seat. Otherwise the child seat's
stability on the front passenger's seat is lim-
ited.<
1.Adjust the backrest width to its widest set-
ting, refer to page42.
2.Install the child seat.
Child seat security
The rear safety belts and the front passenger's
safety belt can be prevented from being pulled
out in order to fasten child-restraint systems.

Transporting children safely
52
To lock the safety belt
1.Secure the child-restraint system with the
belt.
2.Pull the belt strap all the way out.
3.Allow the belt strap to retract and pull it taut
against the child-restraint system.
The safety belt is locked.
To unlock the safety belt
1.Open the belt buckle.
2.Remove the child-restraint system.
3.Allow the safety belt strap to retract all the
way.
LATCH child-restraint fixing
system
LATCH: Lower Anchors and Tethers for CHil-
dren.
To install and use the LATCH child
restraint system, follow the operating and
safety instructions provided by the manufac-
turer of the system, otherwise the protective
function of the seat may be compromised.<
Before installing the child seat, pull the belt out
of the area for the child-restraint fixing system.
Ensure that both lower LATCH anchors
are correctly engaged and that the child
restraint system is resting firmly against the
backrest, otherwise the protective function of
the seat may be compromised.<
Rear seats with through-loading
system*
The anchor points for the lower LATCH
anchors are located behind the labeled protec-
tive caps.
Rear seats without through-loading
system*
The anchor points for the lower LATCH
anchors are located at the positions indicated
by arrows, in the gap between the seat and the
backrest.
Child-restraint system with tether
strap
Use the top tether anchors to secure
child-restraint systems only, otherwise
the anchors could be damaged.<

Controls
53Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
There are three additional anchors for child-
restraint systems with tether straps, see
arrows.
Placement of the tether strap
Make sure the upper retaining strap does
not run over sharp edges and is not
twisted as it passes to the top anchor. Other-
wise the strap will not properly secure the child-
restraint system in the event of an accident.<
1Direction of travel
2Head restraint
3Hook for upper retaining strap
4Anchor
5Rear window shelf
6Seat backrest
7Upper retaining strap of child-restraint sys-
tem
If necessary, fold the head restraints
* upward
before use.
1.Push the head restraint upward.
2.Guide the upper retaining strap between
the head restraint holders.
3.Use the hook to clip the retaining strap to
the anchor.4.Push the head restraint into its lowermost
position.
5.Pull the retaining strap taut.
On journeys
Child-safety locks for rear doors
Slide down the safety lever on the rear door:
The door can now be opened from the outside
only.
Safety switch for power windows
Press the safety switch for the power windows,
refer to page38, if children are traveling on the
rear seat.

Driving
58 >Β: middle position
>N: neutral
>+: shift up manually
>–: shift down manually
>D/S: change between drive mode and
sequential mode
The selector lever locks in position R. In other
transmission positions, it stays in the middle
position; the gear positions are engaged by
pressing lightly in the desired direction.
The gear position currently engaged is indi-
cated by LEDs in the selector lever.
Shiftlock
When the vehicle is stationary, press the brake
pedal before shifting out of N, otherwise the
desired gear will not be engaged.
R Reverse
Select this only when the vehicle is stationary.
N Neutral
If the driving situation demands, e.g. when
downshifting on a slippery road, the M dual
clutch transmission automatically disengages
and engages the clutch, i.e. it is not necessary
to manually engage the neutral position.
N engages when you open the driver's
door while the engine is running, your
safety belt is not fastened and you activate nei-
ther the brake pedal nor the accelerator. To
drive off after closing the driver's door and fas-
tening your safety belt, move the selector lever
to position N first and then to the desired drive
position.<
N remains engaged even after the engine
is switched off if you leave the remote
control in the ignition lock. Use this function in
an automatic car wash, for example, refer to
page56.<
S sequential mode
Shift up or down using the shift paddles or the
selector lever. You do not need to lift your foot
off the accelerator when doing so.Shift from sequential mode to drive mode:
Press the selector lever to the right in the D/S
direction.
Shift back to sequential mode: shift using the
shift paddles or the selector lever, or press the
selector level to the right in the D/S direction
again.
On a level road, you can drive off in second gear,
e.g. on slippery roads.
The M dual clutch transmission assists you in
the following situations:
>Upshifts and downshifts are executed only
when they will result in a plausible combina-
tion of engine and vehicle speed; thus, for
example, a downshift that would cause the
engine to overrev will not be executed by
the system.
>When the vehicle stops, the transmission
automatically shifts down to first gear.
>Shortly before the vehicle slows down to
below the minimum speed of the gear cur-
rently engaged, the transmission automati-
cally shifts down without requiring your
intervention.
Rapid downshifting: in sequential mode, you
can skip several gears to achieve optimal accel-
eration. To do so, press the accelerator past the
resistance point and pull the left shift paddle
once or press the selector lever forward once.
D drive mode
In drive mode, all forward gears are shifted auto-
matically.
Shift from drive mode to sequential mode: shift
using the shift paddles or the selector lever, or
press the selector level to the right in the D/S
direction.
Shift back to drive mode: press the selector
lever to the right in the D/S direction again.
Kick-down: to accelerate rapidly, e.g. when
passing, press the accelerator down past the
resistance point. This provides maximum accel-
eration.