2011 BMW 1 SERIES ECU

128i
135iOwner'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

iDrive
20
Switching the split screen on and off
1.Press the OPTION button.
2."Split screen"
The split screen is activated.
Selecting the display for the split
screen content
When the split screen is switched on, you can
select the content displayed on the screen.
1.Move the controller to the right repeatedly
until the split screen content is selected.
2.Select the display.
Programmable memory keys
Certain iDrive functions can be stored on the
programmable memory keys and called up
directly, e.g. radio stations, navigation destina-
tions, phone numbers and entry points into the
menu.
Storing functions
1.Highlight the function via the iDrive.
2.... Press the desired button
for longer than 2 seconds.
Example for programmable memory
keys
Switch the voice instructions for the navigation
on/off.
1."Navigation"
2."Map"
3.Select the symbol using the controller.
4.... Press the desired button
for longer than 2 seconds.
Executing a function
... Press the button.
The function is executed immediately. This
means, for example, that the number is dialed
when a phone number is selected.
Displaying memory key assignments
Touch the button with a finger. Do not wear
gloves or use objects.
Displaying brief information
... Touch the button.
The key assignment is displayed at the top
edge of the screen.
Displaying detailed information
... Touch the button longer.

Transporting children safely
52
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.<
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.
Children in the 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 page88.
Installing child restraint
systems
Observe the child restraint system manu-
facturer'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.<
Seat position
Before installing a child restraint system, move
the front passenger seat as far back and up as
possible to obtain the best possible position for
the belt. Do not change the seat position after
this.
Backrest width*
The backrest width of the front passenger
seat must be at its widest possible set-
ting. Do not change the setting after installing
the child seat. Otherwise, the child seat's stabil-
ity on the front passenger seat is limited.<
1.Adjust the backrest width to its widest set-
ting, refer to page45.
2.Install the child seat.

Controls
53Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Child seat security
The rear safety belts and the front passenger
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.
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.<
Mounts for the lower LATCH anchors
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.<
Coupe: rear seats
The anchor points for the lower LATCH
anchors are located behind the labeled protec-
tive caps.
Convertible: rear seats
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.
Upper LATCH retaining strap
Convertible
For Canadian Customers Only.
The following statement is required by Trans-
port Canada.
This vehicle is not equipped with user-ready
tether anchorages. As such neither a child
restraint system, nor a booster cushion, requir-
ing the use of a tether strap can be properly
secured in the vehicle.

Transporting children safely
54
Coupe
Use the top tether anchors to secure child
restraint systems only; otherwise, the
anchors could be damaged.<
For child restraint systems with tether straps
there are two additional anchors, see arrows.
Placement of the tether strap
Coupe
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.

Controls
59Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Sport program and manual operation
M/S
Move selector lever from position D toward the
left into the M/S shifting slot; the Sport program
is activated. This position is recommended for a
performance-oriented driving style.
DS is displayed in the instrument cluster.
To deactivate the sport program or manual
mode M/S, move the selector lever to the right
into position D.
Shifting gears via the selector lever
Move selector lever from position D toward the
left into the M/S shifting slot:
When you press the selector lever forwards or
backwards, the manual mode is activated and
Steptronic changes gear.
The engaged gear, e.g. M1 is displayed in the
instrument cluster.
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
instrument cluster, followed again 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 switches to manual
mode.
>If you do not accelerate or shift gears using
the shift paddles for a certain amount of
time, the transmission switches back to
automatic mode.
If the selector lever is in the M/S gear
plane, manual mode remains active.<
>To upshift, briefly pull the right shift
paddle +.
>To downshift, briefly pull the left shift pad-
dle –.
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
instrument cluster, followed again by the gear
actually in use.
Overriding selector lever lock
If the selector lever will not move out of
position P even though the ignition is switched
on, the brake is depressed, and the button on
the selector lever is pressed, the selector lever
lock can be overridden:

Driving
60 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
vehicle tool kit, refer to page213, press the
red lever, see arrow, while moving the
selector lever to the desired position.
7-gear Sports automatic
transmission with double
clutch*
The concept
The 7-gear Sports automatic transmission with
double clutch is an automated manual trans-
mission with two clutches and secondary gear
sets in which the clutching and shifting is han-
dled by an electrohydraulic system.
With the 7-gear Sports automatic transmission
with double clutch, the gears are shifted without
an interruption in driving power.
You operate the 7-gear Sports automatic trans-
mission with double clutch using the selector
lever and two shift paddles on the steering
wheel.
It offers you the following functions:
>either manual or automatic mode: sequen-
tial mode or drive mode
>automatic downshifting and protection
against incorrect gear selection, even in
sequential mode
>Acceleration assistant, Launch Control,
refer to page64.
System limitations
The 7-gear Sports automatic transmission with
double clutch has an overheating protection
that protects the clutch from extreme loads.
The indicator lamp lights up in yellow if
the transmission becomes to warm.
Avoid high engine loads and frequent
accelerations from zero. If the transmission is
overheated, the indicator lamp lights up in red
and the power flow to the motor is interrupted. It
is only possible to continue driving once the
transmission has cooled down.
Avoid frequent powerful accelerations from
zero and do not ride the clutch by accelerating
slightly with a slipping clutch; otherwise, the
transmission may overheat.
Selector lever positions
P R N D M/S + –
The selector lever position and the engaged
gear are displayed, e.g. M4.
Engaging selector lever positions
>The selector lever can be moved out of
position P only with the engine running:
interlock.
>Before moving the lever away from P or N
with the vehicle stationary, first depress the
brake; otherwise, the desired shift will not
be executed: shiftlock.

Driving
62 In the following situations, the 7-gear Sports
automatic transmission with double clutch
does the thinking for you:
>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 could cause the
engine to overrev will not be executed by
the system.
>At a stop, the transmission is automatically
shifted down to the first gear.
>Shortly before the speed falls below a gear-
dependent minimum speed, the transmis-
sion automatically downshifts without your
intervention.
Quick downshifting: even in sequential mode,
you can skip over several gears in order to
achieve an optimum acceleration. To do so,
depress the accelerator past the resistance
point.
To return to automatic mode, push the selector
lever to the right.
Gear shifting
Upshift or downshift using the selector lever or
the shift paddles. You do not have to let off of
the gas to do this.
Using the selector lever
>To upshift, pull the selector lever toward the
rear.
>To downshift, push it toward the front.
Using the shift paddles on the steering
wheel
You can also shift manually using two shift pad-
dles 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 switches to manual
mode.
>If you do not accelerate or shift gears using
the shift paddles for a certain amount of
time, the transmission switches back to automatic mode if the selector lever is in
position D.
>To upshift, briefly pull the right shift
paddle +.
>To downshift, briefly pull the left shift pad-
dle –.
Driving dynamics control
The driving dynamics control permits you, at
the push of a button, to have your BMW react in
an even more sporty fashion when driving:
>Optimal use is made of the engine's speed
range.
>Gear changes occur more quickly.
>The engine reacts more spontaneously to
accelerator pedal movements.
Activating the system
Press the SPORT button.
The LED in the button lights up.
Deactivating the system
>Press the SPORT button again
>Switch off engine
The LED in the button goes out.