ECU BMW 328I 2012 Owners Manual

323i
328i
328xi
335iOwner's Manual for Vehicle
Congratulations, and thank you for choosing a BMW.
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's unique range of technical fea-
tures. The manual also contains information on maintenance
designed to enhance operating safety and contribute to main-
taining the value of your BMW throughout an extended service
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, page80.
1Select a menu item:
>Turn the controller; the highlight marker
moves
>Menu items in white can be selected by
highlighting them
2To activate a menu item:
>Press the controller
>New menu items are displayed or the
function is executed
3Select a menu item: refer to14To switch between fields:
>Briefly move the controller to the left,
right, forward, or backward
>Release the controller
>The active field is brighter in color
5To adjust settings:
>Turn the controller
>Graphic display, numerical value or text
displays can be changed
>Confirm by changing the field

Controls
53Reference
At a glance
Driving tips
Communications
Navigation
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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
universal 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.
The rear seats in your vehicle meet the recom-
mendations of the SAE J1819 standard for
safely mounting child-restraint systems in
motor vehicles.
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. Your BMW center
will be glad to advise you.<
For more information on automatic deactivation
of the front passenger airbags refer to page95.
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.<
Standard child-restraint systems are designed
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's seat
Before installing a child-restraint system
on the front passenger's seat, make sure
that the front and side airbags for the front pas-
senger 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 page46.
2.Install the child seat.

Transporting children safely
54
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.
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.
Child-restraint system with tether
strap
Sports Wagon
Sedan
There are three additional anchors for child-
restraint systems with tether straps, see
arrows.

Controls
61Reference
At a glance
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Mobility
Upshifts and downshifts are executed only
when they will result in a plausible combination
of engine and vehicle speed; thus, for example,
a downshift that would cause the engine to
overrev will not be executed by the system. The
gear selected is briefly displayed in the instru-
ment cluster, followed by the gear actually in
use.
Shifting gears via shift paddles* on the
steering wheel
The shift paddles allow you to shift gears
quickly since both hands can remain on the
steering wheel.
>When you use the shift paddles on the
steering wheel to shift gears in automatic
mode, the transmission automatically
switches to manual mode.
>If you do not accelerate or shift gears using
the shift paddles for a certain amount of
time, the transmission automatically
switches back to automatic mode.
If the selector lever is in the M/S gear
plane, manual mode remains active.<
>To shift up: pull one of the shift paddles.
>To shift down: press one of the shift pad-
dles.
Upshifts and downshifts are executed only
when they will result in a plausible combination
of engine and vehicle speed; thus, for example,
a downshift that would cause the engine to
overrev will not be executed by the system. The
gear selected is briefly displayed in the instru-
ment cluster, followed by the gear actually in
use.
Overriding selector lever lock
Should the selector lever refuse to move out of
position P although the button on the selector
lever is pressed, the selector lever lock can be
overridden:
1.Unclip the sleeve of the selector lever.
2.Pull the sleeve up over the selector lever
until the sleeve is inside out.
3.Using the screwdriver from the onboard
tool kit, refer to page221, press the red
lever while moving the selector lever to the
desired position.
Turn signals/
headlamp flasher
1High beams
2Headlamp flasher
3Turn signals
Using turn signals
Press the lever beyond the resistance point.
To turn off manually, press the lever to the
resistance point.

Technology for driving comfort and safety
88
Deactivating DSC
Press the button for at least 3 seconds; the indi-
cator lamps for DSC in the instrument cluster
light up. Dynamic Traction Control DTC and
DSC have been simultaneously deactivated.
Stabilizing and drive-output promoting actions
are no longer executed.
To increase vehicle stability, activate DSC again
as soon as possible.
Activating DSC
Press the button again; the indicator lamps in
the instrument cluster go out.
For better control
If the indicator lamp flashes:
DSC controls the drive forces and
brake forces.
If the indicator lamps are on:
DSC is deactivated.
DTC Dynamic Traction Control
DTC is a version of DSC in which the drive out-
put is optimized for particular road conditions,
e.g. unplowed snow-covered roads. The sys-
tem assures the maximal drive output, but with
reduced driving stability. It is therefore neces-
sary to drive with appropriate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
>When driving uphill on snow-covered roads,
in slush or on unplowed, snow-covered
roads
>When rocking a stuck vehicle free or start-
ing off in deep snow or on loose ground>When driving with snow chains
Activating DTC
Press the button; the indicator lamps for DTC in
the instrument cluster come on.
For better control
If the indicator lamp flashes:
DTC controls the drive forces and
brake forces.
If the indicator lamps are on:
DTC has been activated.
Deactivating DTC
Press the button again; the DTC indicator
lamps in the instrument cluster go out.
xDrive
xDrive is your BMW's four-wheel-drive system.
The combined efforts of xDrive and DSC help to
further optimize traction and driving dynamics.
The xDrive four-wheel-drive system distributes
driving power variably to the front and rear axles
depending on the driving situation and road
conditions.
Hill Descent Control
HDC is a downhill driving assistant that reduces
your speed on steep downhill gradients and
makes it even easier to control your BMW's
handling under these conditions. The vehicle
then moves slightly faster than double walking
speed without the driver needing to intervene.
HDC can be activated as long as you are driving
under approx. 20 mph or 35 km/h. When driving
downhill at a speed of under approx. 20 mph or

Controls
95Reference
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Communications
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Mobility
Airbags
The following airbags are located under the
marked covers:
1Front airbags for driver and front passenger
2Head airbags, front and rear
3Side airbags in the seat backrests
Protective action
Observe the adjustment instructions on
page44 to ensure the best possible per-
sonal protection.<
The front airbags help protect the driver and
front passenger by responding to frontal
impacts in which safety belts alone cannot pro-
vide adequate restraint. When needed, the
head and side airbags help provide protection in
the event of side impact. The relevant side air-
bag supports the side upper body area. The
head air bag supports the head.
The airbags have been designed to not be trig-
gered in every collision situation, e.g. not in
minor accidents or rear-end collisions.
Do not apply adhesive materials to the
cover panels of the airbags, cover them or
modify them in any other way. Do not attach
seat covers, cushions or other objects not spe-
cifically approved for seats with integral side air-
bags to the front seats. Do not hang items of
clothing such as coats or jackets over the back-
rests. Do not attempt to remove the airbag
retention system from the vehicle. Do not mod-
ify the individual components of the system or
its wiring in any way. This includes the uphol-
stered covers on the steering wheel, instrument
panel, seats and roof posts, as well as the sides of the roof lining. Do not attempt to remove or
dismantle the steering wheel.
Do not touch the individual components imme-
diately after the system has been triggered,
because there is a danger of burns.
In the event of malfunctions, deactivation, or
triggering of the airbag restraint system, have
the testing, repair, removal, and disposal of air-
bag generators executed only by a BMW center
or a workshop that works according to BMW
repair procedures with correspondingly trained
personnel and has the required explosives
licenses. Unprofessional attempts to service
the system could lead to failure in an emer-
gency or undesired airbag activation, either of
which could result in personal injury.<
Warning notices and information about the air-
bags can also be found on the sun visors.
Automatic deactivation of the front
passenger airbags
An analysis of the impression in the front pas-
senger seat cushion determines whether and
how the seat is occupied. The front and side air-
bags for the front passenger are activated or
deactivated by the system accordingly.
The indicator lamp above the interior
rearview mirror shows the current status
of the front passenger airbags, deactivated or
activated, refer to Status of front passenger air-
bags below.
Before transporting a child on the front
passenger seat, read the safety precau-
tions and handling instructions under Trans-
porting children safely, refer to page53.

Practical interior accessories
114 5.The unlocked rear seat backrest moves for-
ward slightly. Fold the backrest forward by
the head restraint.
Closing
1.Return the rear seat backrest to its upright
position and engage it.
When returning the backrest into its
seating position, make sure that the
seat's locking mechanism engages prop-
erly. Otherwise, cargo could be thrown
around in the event of sharp braking or
swerving and endanger the occupants.<
2.Release the latch plate from the fixture on
the rear window shelf and insert it into the
belt lock of the center safety belt. Make sure
you hear the latch plate engage in the belt
buckle.The lashing eyes in the cargo bay provide you
with a way to attach cargo-bay nets
* or draw
straps for securing suitcases and luggage, refer
to page125.
Sports Wagon:
Cargo bay
Ma ke sure tha t no fluids are leaking in the
cargo bay; otherwise the vehicle could be
damaged.<
Roll-up cover
Pull out the cover and hook it into the retaining
fixtures.
Do not place objects on the cover, other-
wise they could endanger the car's occu-
pants, e.g. in the case of braking or sudden
swerving.
Do not let the cover retract, otherwise it could
be damaged.<
The roll-up cover is raised when the rear
window or tailgate is opened
*. Before
closing the rear window or tailgate, press the
roll-up cover downward until it engages.<

Practical interior accessories
116
Storage compartments inside
the cargo bay
Sedan
Depending on your vehicle's equipment, the
following storage spaces can be found in the
cargo bay:
>Left storage compartment, e.g. for storing a
box of cleaning tissues or up to 12 CD jack-
ets, depending on vehicle equipment ver-
sion
>Net
* for securing smaller objects, to be
attached to the fixtures on the floor panel
>Hooks for hanging up, e.g., shopping bags
or tote bags
>Rubber strap on the left trim panel for
securing small objects such as a folding
umbrella
>Net for small objects on the right trim panel
of the cargo bay
>Retaining straps next to the rear lashing
eyes, e.g. for securing an umbrella
>Folding, removable box
* under the floor
panel, e.g. for wet or dirty items
>Storage compartment under the floor panel
>Insertable dividers
* and removable storage
tray for the storage compartment under the
floor panel
>Drawer for storing small items. Pull the han-
dle firmly to release the drawer. If neces-
sary, you can pull out the drawer entirely,
refer to the information below
Do not drive or close the luggage com-
partment lid while the drawer is pulled
out.
On uphill gradients, release the drawer with
caution, otherwise it could slide out on its own
and cause injury.
Do not exceed a maximum load of 11 lbs/5 kg
for the drawer, otherwise damage could
result.<
Removing the drawer
1.Push the drawer all the way in.
2.Turn the catches on the left and right all the
way out.
3.Remove the drawer by pulling it down and
backwards.
Reinserting the drawer
1.Hook the guides of the drawer into the front
of the yellow guide aids on the bottom of the
cargo bay.
2.Insert the catches into the mounts on the
bottom of the cargo bay.
3.Turn the catches on the left and right all the
way in.
Sports Wagon
The following storage spaces can be found in
the cargo bay:
>Umbrella holder on the bottom of the parti-
tion net casing
>Rubber strap on the left and right trim panel
for securing small objects such as a folding
umbrella

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>Hooks for hanging up shopping bags or tote
bags, for example, on the left and right-hand
sides of the cargo bay
>Net for small objects on the right trim panel
of the cargo bay
>Storage compartment under the floor panel
Depending on your vehicle's equipment, other
storage spaces can be found in the cargo bay:
>Net
* for securing smaller objects, to be
attached to the fixtures on the floor panel
>Net
* on the left side trim of the cargo bay
instead of the rubber strap
>Reversible cargo area floor panel with inte-
grated plastic cover
* for cargo bay or
bumper
>Folding, removable box
* under the floor
panel, e.g. for wet or dirty items
>Insertable dividers
* and removable storage
tray for the storage compartment under the
floor panel
Folding up the floor panel
Do not exceed the maximum permissible
load of 55 lbs/25 kg for the storage com-
partment under the floor panel, otherwise dam-
age could result.<
Sedan
Press the floor panel against the ceiling of the
cargo bay; a locking device holds the floor panel
in place. To detach the floor panel, pull it out of
the locking device.
Equipment version with drawer:
Take the retaining strap on the right-hand side
of the drawer out of the bracket and use it to fix
the floor panel in place.
Sports Wagon
Fold up the floor panel and take it out or lean it
forward.
Lashing eyes
You will find lashing eyelets in the cargo bay for
securing luggage items with nets or tensioning
straps, refer to page125.
Ski bag*
Designed for safe, clean transport of up to
4 pairs of standard skis or up to 2 snowboards.
With the ski bag you can stow skis with a length
of up to 6ft 10in/2.10m. When skis of 6ft 10in/
2.10 m length are loaded, the overall capacity of
the ski bag is reduced due to its tapered design.
Loading
1.Fold down the center armrest.
2.Press the button, reach into the recess and
fold down the cover.
3.Open the Velcro fastener, spread the ski
bag between the front seats and insert the
skis or snowboards.