2012 BMW 135I CONVERTIBLE Indicator

Driving
66
Launch Control
Launch Control enables an optimum accelera-
tion when starting off on a road surface with
good traction.
Do not use Launch Control too often; oth-
erwise, the powerful stresses on the vehi-
cle will lead to premature component wear.<
Launch Control is ready for use when the
engine is at operating temperature, i.e. after
uninterrupted travel of at least 6.2 miles/10 km.
1.With the engine running, step on the brake
with your left foot.
2.Activate Dynamic Traction Control (DTC),
refer to page84.
3.Activate Driving dynamics control, refer to
page64.
4.With the vehicle stationary, activate the
manual mode and select 1
stgear.
5.With your right foot, push the accelerator
pedal past the resistance point. The engine
speed for pulling away is adjusted. A flag
symbol appears in the instrument cluster.
6.When you release the brake pedal, the vehi-
cle accelerates. Keep the accelerator pedal
floored.
7.The upshifting occurs automatically as long
as you keep the accelerator pedal pressed
past the resistance point.
Launch Control will be ready for use again after
you drive a certain distance.
Launch Control is not available for use during
the break-in phase, refer to page116.
To maintain driving stability, keep DSC
activated whenever possible.<
Turn signals/
headlamp flasher
1High beams
2Headlamp flasher
3Turn signal
Using turn signals
Press the lever beyond the resistance point.
To turn off manually, press the lever to the
resistance point.
Unusually rapid flashing of the indicator
lamp and the turn signals indicates that
one of the turn signal bulbs has failed.<
Signaling a turn briefly
Press the lever as far as the resistance point for
as long as you wish to signal a turn.
Triple turn signal activation
Press the lever as far as the resistance point.
The turn signals flash three times.
You can activate or deactivate this function.
1."Settings"
2."Lighting"
3."Triple turn signal"

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Engine oil temperature*
When the engine is at normal operating temper-
ature, the engine oil temperature is between
approx. 2107/1006 and approx. 3007/
1506.
If the engine oil temperature is too high, a mes-
sage appears on the Control Display.
Fuel gauge
Fuel tank capacity: approx. 14 US gal/53 liters.
You can find information on refueling on
page206.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
Fuel display 135i: in speedometer.
Reserve
Once the fuel level has fallen to the reserve
zone, a message briefly appears on the Control
Display and the remaining cruising range is dis-
played on the computer. Under a cruising range
of approx. 30 miles/50 km, the message
appears continuously in the Control Display.With a dynamic driving style, e.g. rapid corner-
ing, engine functions are not always assured.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km; otherwise, engine functions are not
ensured and damage can occur.<
Computer
Displays in the instrument cluster
Calling up information
Press the button in the turn signal/high beam
lever.
The following items of information are dis-
played in the order listed:
>Cruising range
>Average speed
>Average fuel consumption
>Current fuel consumption
>No information
To set the corresponding units of measure,
refer to Units of measure on page74.

Controls overview
78
Date
The settings are stored for the remote control
currently in use, refer also to Personal Profile on
page28.
Setting the date
In the instrument cluster
To set the dd/mm or mm/dd date format, refer
to Setting the date format below.
1.Push button1 in the turn signal/high beam
lever up or down repeatedly until the appro-
priate symbol appears in the display,
accompanied by the date and the word
"SET".
2.Press button2.
3.Use button1 to set the day of the month.
4.Press button2 to confirm the entry.
5.Set the month and the yea r i n t he s a m e w a y .
6.Press button 2.
The system stores the new date.
Via iDrive
1."Settings"
2."Time/Date"
3."Date:"
4.Turn the controller until the desired day is
displayed, and press the controller.
5.Create the necessary settings for the
month and year.
The date is stored.
Setting the date format
1."Settings"
2."Time/Date"
3."Format:"
4.Select the desired format.
The date format is stored.
Check Control
The concept
The Check Control monitors vehicle functions
and alerts you to any malfunctions in the sys-
tems monitored. Such a Check Control mes-
sage includes indicator and warning lamps in
the instrument cluster and, in some circum-
stances, an acoustic signal as well as text mes-
sages at the top of the Control Display.
Indicator and warning lamps
Indicator and warning lamps can light up in a
variety of combinations and colors.
Several of the lamps are checked for proper
functioning and light up temporarily when the
engine is started or the ignition is switched on.

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indicates that Check Control messages have
been stored. These Check Control messages
can be viewed again later, refer to page79.
Text messages
Text messages at the upper edge of the Control
Display explain the meaning of the displayed
indicator and warning lamps.
Supplemental text messages
You can call up more information on the Control
Display, e.g. on the cause of a malfunction and
on how to respond, via Check Control.
The text of urgent messages is displayed auto-
matically.
To exit the display:
Select "OK" and press the Controller.
Symbols*
Depending on the Check Control message, you
can select from among the following functions
in the supplementary text messages.
>"Service request"
Contact your BMW center.
>"Roadside Assistance"
Contact BMW Roadside Assistance.
Hiding Check Control messages
Press the button on the turn signal/high beam
lever.
>Some Check Control messages are dis-
played continuously and remain visible until
the malfunction has been rectified. If several
malfunctions occur at once, the messages
are displayed consecutively.
These messages can be hidden for approx.
8 seconds. After this, they are displayed
again automatically.
They are marked with the symbol
shown here.
>Other Check Control messages are hidden
automatically after approx. 20 seconds.
They are stored and can be displayed again
later.
They are marked with the symbol
shown here.
Displaying stored Check Control
messages
1.Push button1 in the turn signal/high beam
lever up or down repeatedly until the appro-
priate symbol appears in the display,
accompanied by the words "CHECK".

Technology for driving comfort and safety
82
Technology for driving comfort and safety
Park Distance Control PDC*
The concept
The PDC assists you with maneuvering in tight
parking spaces. Acoustic signals and a visual
indicator
warn you of the presence of an object
behind your vehicle. Four ultrasonic sensors in
the bumper measure the distance.
These sensors have a range of approx. 6.5 ft/
2 m. However, an acoustic warning does not
sound until an object is approx. 2 ft/60 cm from
the corner sensors, or approx. 5 ft/1.50 m from
the center sensors.
PDC is a parking aid that can indicate
objects when they are approached
slowly, as is usually the case when parking.
Avoid approaching an object at high speed; oth-
erwise, physical circumstances may lead to the
system warning being issued too late.<
Switching on automatically
With the engine running or the ignition switched
on, the system is activated after approx. second
when you engage reverse gear or move the
automatic transmission selector lever to
position R. Wait this short period before driving.
Switching off automatically
After approx. 150 ft/50 m of driving or approx.
20 mph/30 km/h of speed, the system switches
off and the LED goes out.
Signal tones
When nearing an object, its position is indicated
correspondingly by an interval tone. As the dis-
tance between vehicle and object decreases,
the intervals between the tones become
shorter. If the distance to the nearest object
falls to below roughly 1 ft/30 cm, then a contin-
uous tone sounds.An interval tone is interrupted after approx.
3seconds:
>If you stop in front of an object that has been
detected by only one of the corner sensors
>If you are driving parallel to a wall
Malfunction
The indicator lamp in the instrument
cluster lights up. PDC is malfunction-
ing. A message appears on the Con-
trol Display. Have the system checked.
To avoid this problem, keep the sensors clean
and free of ice or snow in order to ensure that
they will continue to operate effectively. When
using a high-pressure cleaner, do not spray the
sensors for extended periods of time and only
from a distance of at least 1 ft/30 cm.
PDC with visual warning
The approach of the vehicle to an object is
shown on the Control Display. Objects that are
farther away are displayed on the Control Dis-
play before a signal tone sounds. The display
appears on the Control Display as soon as PDC
is activated.
System limitations
Even with PDC, final responsibility for
estimating the distance between the
vehicle and any obstructions always remains
with the driver. Even when sensors are pro-
vided, there is a blind spot in which objects can
no longer be detected. The system is also sub-
ject to the physical limits that apply to all forms
of ultrasonic measurement, such as those
encountered with trailer towbars and hitches,
thin or wedge-shaped objects, etc. Low objects
that have already been displayed, e.g. curbs,
can disappear again from the detection area of
the sensors before or after a continuous tone
sounds. Higher, protruding objects, e.g. ledges,
cannot be detected. Loud sound sources out-
side or inside the car can drown out the PDC

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signal. Therefore, always drive cautiously; oth-
erwise, there is a risk of personal injury or prop-
erty damage.<
Driving stability control
systems
Your BMW has a number of systems that help
to maintain the vehicle's stability even in
adverse driving conditions.
Antilock Brake System ABS
ABS prevents locking of the wheels during
braking. Safe steering response is maintained
even during full braking. Active safety is thus
increased.
The ABS is operational every time you start the
engine. Braking safely, refer to page118.
Electronic brake-force distribution
EBV
The system controls the brake pressure in the
rear wheels to ensure stable braking behavior.
Dynamic Brake Control DBC
When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost and thus helps to achieve the short-
est possible braking distance during full brak-
ing. This system exploits all of the benefits pro-
vided by ABS.
Do not reduce the pressure on the brake for the
duration of the full braking application.
Dynamic Stability Control DSC
DSC prevents the driving wheels from losing
traction when you pull away from rest or accel-
erate. The system also recognizes unstable
driving conditions, for example if the rear of the
car is about to swerve or if momentum is acting
at an angle past the front wheels. In these
cases, DSC helps the vehicle maintain a safe
course within physical limits by reducing engine
output and through braking actions at the indi-
vidual wheels.The laws of physics cannot be repealed,
even with DSC. An appropriate driving
style always remains the responsibility of the
driver. Therefore, do not reduce the additional
s a f e t y m a r g i n a g a i n b y t a k i n g r i s k s , a s t h i s c o u l d
result in an accident.<
Deactivating DSC
Press the button for at least 3 seconds until the
indicator lamp for DSC OFF lights up and DSC
OFF is displayed in the instrument panel.
Dynamic Traction Control DTC and DSC have
been simultaneously deactivated. Stabilizing
and drive-output promoting actions are no
longer executed.
In the same way as with a differential interlock
*,
even if DSC is deactivated, brake actions are
still performed on the rear axle to enhance drive
output if the drive wheels experience a signifi-
cant loss of traction.
To increase vehicle stability, activate DSC again
as soon as possible.
Activating DSC
Press the button again; the indicator lamp in the
instrument panel goes out.
For better control
If the indicator lamp flashes: the DSC
controls the driving and braking forces.
If the indicator lamp lights up: DSC and
DTC have failed.
The indicator lamp lights up and
DSC OFF is displayed in the instrument
panel: DSC is deactivated.

Technology for driving comfort and safety
84
Dynamic Traction Control DTC
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 lamp for DSC
OFF lights up and TRACTION is displayed in
the instrument panel.
For better control
If the indicator lamp flashes: DTC con-
trols the driving and braking forces.
If the indicator lamp lights up: DSC and
DTC have failed.
The indicator lamp lights up and TRAC-
TION is displayed in the instrument
panel: DTC is activated.
Deactivating DTC
Press the button again; the indicator lamp in the
instrument panel goes out.
Drive-off assistant
The drive-off assistant enables you to drive off
smoothly on uphill gradients. It is not necessary
to use the parking brake for this.
1.Hold the car in place by depressing the
brake.
2.Release the brake and drive off without
delay.
The drive-off assistant holds the car in
place for approx. 2 seconds after the
brake is released. Drive off without delay after
releasing the brake. Otherwise, the drive-off
assistant will no longer hold the car in place
after approx. 2 seconds and the car will start to
roll backwards.<
Flat Tire Monitor FTM*
The concept
The system does not measure the actual infla-
tion pressure in the tires.
The system detects a pressure loss in a tire by
comparing the rotational speeds of the individ-
ual wheels while moving.
In the event of a pressure loss, the diameter and
therefore the rotational speed of the corre-
sponding wheel change. This is detected and
reported as a flat tire.
Functional requirement
The system must have been initialized while the
tire inflation pressure was correct; otherwise,
reliable signaling of a flat tire is not ensured.
Each time a tire inflation pressure has been cor-
rected or a wheel or tire has been changed,
reinitialize the system.
System limitations
Sudden serious tire damage caused by
external influences cannot be indicated in
advance.<
The system will not detect a natural, uniform
pressure loss in all four tires. Therefore, check
the tire inflation pressure regularly.

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Status indicator on the Control Display
The color of the tires represents the status of
the tires and the system.
A change in the tire inflation pressure during
driving is taken into account.
A correction is only required when this is indi-
cated by the TPM.
Green wheels
The inflation pressure corresponds to the
desired state.
"TPM active" appears in the Control Display.
One wheel yellow
There is a flat tire or substantial loss of tire pres-
sure in the indicated tire.
All wheels yellow
>There is a flat tire or substantial loss of tire
pressure in several tires.
>The system was not reset after a wheel
change and thus issues a warning based on
the inflation pressures initialized last.
Gray wheels
The system cannot detect a puncture.
Reasons for this may be:
>TPM is being reset.
>Interference from systems or devices that
use the same radio frequency.
>Malfunction.
Resetting the system
Each time a tire inflation pressure has been cor-
rected or a wheel or tire has been changed,
reset the system.
1."Vehicle Info"
2."Vehicle status"3."Reset"
4.Start the engine – do not drive away.
5.Reset the inflation pressure by selecting
"Reset".
6.Start driving.
The tires are shown in gray and "Resetting
TPM..." is displayed.
After driving a few minutes, the set inflation
pressures in the tires are accepted as the target
values to be monitored. The resetting process
is completed automatically as you drive. On the
Control Display, the wheels are shown in green
and "Status: TPM active" is displayed.
The trip can be interrupted at any time. When
driving resumes, resetting continues automati-
cally.
If a flat tire is detected while the system is
resetting, all tires on the Control Display
are displayed in yellow. The message "Low
tire!" is displayed.<
Message for low tire inflation pressure
The warning lamps light up in yellow
and red. A message appears on the
Control Display. In addition, a signal
sounds.
>There is a flat tire or substantial loss of tire
pressure in the indicated wheel.
>The system was not reset after a wheel
change and thus issues a warning based on
the inflation pressures initialized last.
Reduce speed and stop the vehicle with cau-
tion. Avoid sudden braking and steering
maneuvers.
When a low tire pressure is reported, the
Dynamic Stability Control DSC is activated.