BMW 128I CONVERTIBLE 2008 E88 Repair Manual

Controls
59Reference
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Driving tips
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Mobility
Starting the engine
Do not run the engine in closed rooms,
otherwise the inhalation of toxic exhaust
gases can cause unconsciousness and death.
The exhaust gases contain carbon monoxide,
an odorless and colorless, but highly toxic gas.
Never leave an unattended vehicle with the
engine running, otherwise such a vehicle repre-
sents a potential safety hazard.
Before leaving the car with the engine running,
place the transmission in neutral or move the
selector lever to position P and forcefully apply
the parking brake to prevent the car from mov-
ing.<
Do not wait for the engine to warm up while the
vehicle remains stationary. Start driving right
away, but at moderate engine speeds.
Avoid frequent starting in quick succes-
sion as well as repeated start attempts in
which the engine does not start. Otherwise, the
fuel is not burned or incompletely burned and
there is a danger of overheating and damaging
the catalytic converter.<
Manual transmission
Remote control in the ignition lock or, with con-
venient access, inside the vehicle, refer to
page36.
1.Depress the brake.
2.Depress the clutch and shift to neutral posi-
tion.
3.Press the start/stop button.
The starter operates automatically for a certain
time, and stops automatically as soon as the
engine has started.
Automatic transmission
Remote control in the ignition lock or, with con-
venient access, inside the vehicle, refer to
page36.
1.Depress the brake.
2.Move the selector lever to position P.
3.Press the start/stop button.
The starter operates automatically for a certain
time, and stops automatically as soon as the
engine has started.
Switching off the engine
Always take the remote control with you
when you leave the vehicle.
When parking, apply the parking brake force-
fully, otherwise the vehicle could begin to roll.<
Manual transmission
1.With the car at a standstill, press the start/
stop button.
2.Shift into first gear or reverse.
3.Forcefully apply the parking brake.
4.Removing the remote control from the igni-
tion lock, refer to page58.
Automatic transmission
1.With the car at a standstill, move the selec-
tor lever to position P.
2.Press the start/stop button.
3.Forcefully apply the parking brake.
4.Removing the remote control from the igni-
tion lock, refer to page58.
Parking brake
The parking brake is primarily intended to pre-
vent the vehicle from rolling while parked; it
brakes the rear wheels.
Indicator lamp
The indicator lamp is lit, and when you
drive off a signal sounds in addition.
The parking brake is still applied.

Driving
60 Indicator lamp for Canadian models.
Applying
The lever locks in position automatically.
Releasing
Pull slightly upwards, press the button and
lower the lever.
In exceptional cases, if the parking brake
has to be used to slow or stop the car, do
not pull the lever up too hard. In doing so, con-
tinuously press the button of the parking brake
lever.
Otherwise, excessive force on the parking
brake can lock up the rear wheels and cause the
rear of the car to swerve.<
To prevent corrosion and one-sided brak-
ing action, occasionally apply the parking
brake lightly when the vehicle is slowly coming
to a stop if the traffic conditions are suitable.
The brake lamps do not light up when the park-
ing brake is applied.<
Manual transmission
When shifting into 5th or 6th gear, press
the gearshift lever to the right. Otherwise
the engine could be damaged if you inadvert-
ently shift into 3rd or 4th gear.<
Reverse gear
Select this only when the vehicle is stationary.
When the gearshift lever is pressed to the left, a
slight resistance has to be overcome.
Automatic transmission with
Steptronic*
In addition to fully automatic operation, you can
also manually shift with the Steptronic, refer to
page61.
Vehicle parking
To prevent the vehicle from rolling,
always select position P and apply the
parking brake before leaving the vehicle with
the engine running.<
Disengaging the remote control
In order to remove the remote control from the
ignition lock, you must first move the selector
lever to position P and switch off the engine:
interlock. Removing the remote control from
the ignition lock, refer to page58.
Selector lever positions
P R N D M/S + –

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Displays in the instrument cluster
P R N D DS M1 to M6
The selector lever position is displayed, or the
current gear in the manual mode.
Changing selector lever positions
>With the ignition switched on or the engine
running, the selector lever can be moved
out of position P: interlock.
>Before moving the lever away from P or N
with the vehicle stationary, first depress the
brake; otherwise the selector lever will
refuse to move: shiftlock.
To prevent the vehicle from creeping
after you select a driving position,
depress the brake until you are ready to
start.<
A lock prevents you from inadvertently engag-
ing selector lever positions R and P. To cancel
the lock, press the button on the front of the
selector lever, see arrow.
P Park
Select this only when the vehicle is stationary.
The drive wheels are locked.
R Reverse
Select this only when the vehicle is stationary.
N Neutral
You can select this in a car wash, for example.
The vehicle can roll.
D Drive, automatic position
Position for normal vehicle operation. All for-
ward gears are selected automatically.
Under normal operating conditions, fuel con-
sumption is lowest when you are driving in posi-
tion D.
Kick-down
Kick-down enables you to achieve maximum
performance.
Press the accelerator pedal beyond the full-
throttle resistance point.
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 and DS is dis-
played on the instrument cluster. This position
is recommended for a performance-oriented
driving style.
To use the automatic mode again, move the
selector lever to the right into position D.
Shifting gears via the selector lever
When you press the selector lever forwards or
backwards, the manual mode is activated and
Steptronic changes gear. M1 through M6 are
displayed on the instrument cluster.

Driving
62 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 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 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 page223, press the red
lever, see arrow, 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.

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Unusually rapid flashing of the indicator
lamp and the turn signals indicates that
one of the turn signal bulbs has failed.<
Indicating a turn briefly
Press the lever as far as the resistance point for
as long as you wish to indicate 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.
iDrive, for operating principle refer to page16.
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.If necessary, move the highlight marker to
the uppermost field. Turn the controller
until "Lighting" is selected and press the
controller.
6.Select "Triple turn signal" and press the
controller.
Triple turn signaling is activated.
The setting is stored for the remote control cur-
rently in use.
Wiper system
1Switching on wipers
2Switching off wipers or brief wipe
3Activating/deactivating intermittent wipe or
rain sensor
*
4Cleaning windshield and headlamps*
5Setting speed for intermittent wipe, or sen-
sitivity of the rain sensor
Switching on wipers
Press the lever upward, arrow 1.
The lever automatically returns to its initial posi-
tion when released.
Normal wiper speed
Press once.
The system switches to operation in the inter-
mittent mode when the vehicle is stationary.
Fast wiper speed
Press twice or press beyond the resistance
point.
The system switches to normal speed when the
vehicle is stationary.
Intermittent wipe or rain sensor*
If the car is not equipped with a rain sensor, the
intermittent-wipe time is a preset.
If the car is equipped with a rain sensor, the time
between wipes is controlled automatically and
depends on the intensity of the rainfall. The rain
sensor is mounted on the windshield, directly in
front of the interior rearview mirror.

Driving
64
Activating intermittent wipe or rain
sensor
Press the button, arrow3. The LED in the but-
ton lights up.
Setting speed for intermittent wipe or
sensitivity of the rain sensor
Turn the thumb wheel5.
Deactivating intermittent wipe or rain
sensor
Press the button again, arrow3.
The LED goes out.
Deactivate the rain sensor before enter-
ing an automatic car wash. Failure to do
so could result in damage caused by undesired
wiper activation.<
Cleaning windshield and headlamps*
Pull the lever, arrow 4.
Washer fluid is sprayed onto the windshield and
the wipers are operated for a short time.
When the vehicle lighting system is switched
on, the headlamps are cleaned at regular and
appropriate intervals.
Do not use the washers if there is any
danger that the fluid will freeze on the
windshield. If you do, your vision could be
obscured. Antifreeze should therefore be
added to the fluid, refer to Washer fluid.
Do not use the washers when the washer fluid
reservoir is empty, otherwise you will damage
the washer pump.<
Windshield washer nozzles
The windshield washer nozzles are heated
automatically
* while the engine is running or
the ignition is switched on.
Washer fluid
Washer fluid antifreeze is flammable.
Therefore, keep it away from ignition
sources and only store it in the closed original
container that is kept out of reach of children,
otherwise there is a risk of personal injury.
Comply with the instructions on the con-
tainer.<
Washer fluid filler neck
O nly refill was her fluid when the engine is
cool to avoid contact with hot engine
parts. Otherwise, fluid spills constitute a fire
hazard and a risk to personal safety.<
All washer nozzles are supplied with washer
fluid by the same reservoir.
Fill with water and, if required, with a washer
antifreeze, according to manufacturer's recom-
mendations.
Mix the water and antifreeze before filling
the washer fluid reservoir to make sure
the correct concentration is maintained.<
Capacity
Approx. 6.3USquarts/6liters.

Controls
65Reference
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Communications
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Entertainment
Mobility
Cruise control*
The concept
You can use the cruise control feature begin-
ning at approx. 20 mph/30 km/h. The car then
stores and maintains the speed that you specify
using the lever on the steering column.
Do not use cruise control when driving at
constant speed is prevented by adverse
conditions, e.g. winding roads, dense traffic or
poor road conditions due to, e.g., snow, rain, ice
or loose surfaces. Otherwise you could lose
control of the vehicle and cause an accident as a
result.<
One lever for all functions
1Storing and maintaining speed or accelerat-
ing
2Storing and maintaining speed or deceler-
ating
3Deactivating cruise control
4Resuming a speed stored beforehand
Maintaining current speed
Tap the lever, arrow 1, or pull it briefly, arrow 2.
The car's current speed is stored and main-
tained. It is briefly displayed in the instrument
cluster.
If the engine braking power is insufficient on a
downhill slope, the set speed may be exceeded.
On uphill gradients, it may prove impossible to
maintain the set speed if engine power output is
insufficient.
Increasing speed
Repeatedly press the lever, arrow 1, until the
desired speed is reached.
Each time the lever is pressed lightly, the speed
is increased by approx. 1 mph/1 km/h.
Accelerating using the lever
Press the lever, arrow 1, until the desired speed
is reached.
The vehicle accelerates without pressure on
the accelerator pedal. The system stores and
maintains the speed.
Decreasing speed
Repeatedly pull the lever, arrow 2, until the
desired speed is reached.
The functions are the same as when the set
speed is increased or the vehicle is accelerated,
except that in this case the speed decreases.
Deactivating cruise control
Tap the lever upwards or downwards, arrow3.
In addition, the system is automatically deacti-
vated:
>When you brake the vehicle
>When you depress the clutch of a manual
transmission or shift to neutral
>When you select the automatic transmis-
sion's neutral position N
>When the vehicle travels faster or slower
than the set speed for an extended period,
e.g. when the accelerator is depressed
>When you activate DTC or deactivate DSC
>When DSC is intervening
Resuming a speed stored beforehand
Press the button, arrow4.
The last stored speed is resumed and main-
tained.
The stored speed is briefly displayed in the
instrument cluster.
The stored speed is cleared when the ignition is
switched off.

Driving
66
Display in the instrument cluster
When the speed at which the vehicle is traveling
is stored or when a stored speed is called up,
the speed is briefly displayed in the instrument
cluster.

Controls
67Reference
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Mobility
Everything under control
Odometer, outside
temperature display, clock
1Knob in the instrument cluster
2Outside temperature and clock
3Odometer and trip odometer
Knob in the instrument cluster
>To reset the trip odometer while the ignition
is switched on
>To display the time, outside temperature
and odometer briefly while the ignition is
switched off
Units of measure
T o s e l e c t t h e r e s p e c t i v e u n i t s o f m e a s u r e , m i l e s
or km for the odometer as well as 7 or 6 for
the outside temperature, refer to Units of mea-
sure on page71.
The setting is stored for the remote control cur-
rently in use.
Time, outside temperature display
Setting the time, refer to page75.
Outside temperature warning
When the displayed temperature sinks to
approx. +37 7/+36, a signal sounds and a
warning lamp lights up. There is an increased
risk of black ice.
Black ice can also form at temperatures
above +37 7/+36. You should there-
fore drive carefully on bridges and shaded roads, for example, otherwise there is an
increased risk of an accident.<
Odometer and trip odometer
Resetting trip odometer:
With the ignition switched on, press button1 in
the instrument cluster.
When the vehicle is parked
If you still want to view the time, outside tem-
perature and odometer reading briefly after the
remote control has been taken out of the igni-
tion lock:
Press button 1 in the instrument cluster.
Tachometer
Never force the engine speed up into the red
warning field, see arrow. In this range, the fuel
supply is interrupted to protect the engine.

Everything under control
68
Coolant temperature
A warning lamp will come on if the coolant, and
therefore the engine, becomes too hot.
In addition, a message will appear on the Con-
trol Display.
Check coolant level, refer to page216.
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 gallons/
53 liters.
You can find information on refueling on
page202.
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 cruising range for the remaining
amount of fuel is displayed on the computer.
Under a cruising range of approx. 30 miles/
50 km, the message remains in the Control Dis-
play.
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 indicator 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