2008 BMW 128I CONVERTIBLE hood open

Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Contents
The fastest way to find information on a partic-
ular topic or item is by using the index, refer to
page244.
Using this Owner's Manual
4Notes
6Reporting safety defects
At a glance
10Cockpit
16iDrive
23Voice command system
Controls
28Opening and closing
45Adjustments
55Transporting children safely
58Driving
67Everything under control
81Technology for driving comfort and
safety
92Lamps
97Climate
103Practical interior accessories
Driving tips
114Things to remember when driving
Navigation
122Starting the navigation system
123Destination entry
136Destination guidance
146What to do if …
Entertainment
150On/off and settings
154Radio
160Satellite radio
163CD player and CD changer
169AUX-In port
170USB-audio interface
Communications
176Telephoning
191BMW Assist
Mobility
202Refueling
204Wheels and tires
212Under the hood
217Maintenance
219Care
223Replacing components
229Giving and receiving assistance
Reference
236Technical data
240Short commands for the voice command
system
244Everything from A - Z

At a glance
11Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
7
Fog lamps*95
8
Turn signals62
High beams, headlamp flasher94
Roadside parking lamps
*94
Computer68
Settings and information about the
vehicle71
Settings and information about the
vehicle71
Instrument lighting95
9Instrument cluster12
10
Windshield wipers63
Rain sensor
*63
11Switching the ignition on/off and
starting/stopping the engine58
12Ignition lock58
13Buttons on the steering wheel
Telephone
*:
>Press: accepting and ending a
call; starting dialing
* of
selected phone number; redi-
aling if no phone number is
selected.
>Press longer: redialing
Volume
Activating/deactivating voice com-
mand system
*
Changing radio station
Selecting music track
Scrolling through phone book and
lists with stored phone numbers
Individually programmable53
Individually programmable53
14Horn: the entire surface
15Adjusting the steering wheel53
16
Cruise control
*65
17Releasing the hood212
18Opening the luggage compartment lid33

Opening and closing
34 Turn the key all the way to the left: the luggage
compartment lid opens.
Locking or unlocking separately
The switch is located in the glove compartment.
1Locking the luggage compartment lid
2Unlocking the luggage compartment lid
Locking separately
Push the switch in the direction of arrow 1.
The luggage compartment lid is locked and
cannot be unlocked using the central locking
system.
If you give the remote control without the inte-
grated key to someone else while the glove
compartment is locked, the luggage compart-
ment lid cannot be opened. This is an advan-
tage when using valet parking, for example.
Locking the glove compartment, refer to
page106.
Unlocking separately
Push the switch in the direction of arrow 2.
Emergency release
Pull the lever in the cargo bay. The luggage
compartment lid is unlocked.
Closing
The handle recesses on the interior trim of the
luggage compartment lid make it easier to pull
down.
Make sure that the closing path of the
luggage compartment lid is clear, other-
wise injuries may result.<
Alarm system*
The concept
The vehicle alarm system responds:
>When a door, the hood or the luggage com-
partment lid is opened
>To movements inside the vehicle: interior
motion sensor, refer to page35
>When the car's inclination changes, for
instance if an attempt is made to jack it up
and steal the wheels or to raise it prior to
towing away: tilt alarm sensor, refer to
page35

Controls
35Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
>When there is an interruption in the power
supply from the battery.
Depending on the national-market version, the
alarm system briefly signals unauthorized entry
attempts by:
>An acoustic alarm
>Switching on
* the hazard warning flashers
Arming and disarming
When you lock or unlock the vehicle, either with
the remote control or at the door lock, the alarm
system is armed or disarmed at the same time.
You can open the luggage compartment lid
using the button of the remote control even
if the alarm system is armed, refer to page30.
The lid is locked and monitored again as soon
as it is closed.
Panic mode
You can trigger the alarm system if you find
yourself in a dangerous situation.
Press the button for at least three seconds.
To switch off the alarm: press any button.
Switching off an alarm
>Unlock the car with the remote control, refer
to page29, or
>insert the remote control all the way into the
ignition lock.
Indicator lamp displays
>The indicator lamp under the inside rear-
view mirror flashes continuously: the sys-
tem is armed.
>The indicator lamp flashes after locking:
doors, hood or luggage compartment lid are not properly closed. Even if you do not
close the alerted area, the system begins to
monitor the remaining areas, and the indi-
cator lamp flashes continuously after
approx. 10 seconds. The interior motion
sensor and the tilt alarm sensor are not acti-
vated.
>The indicator lamp goes out after unlocking:
your vehicle has not been disturbed while
you were away.
>If the indicator lamp flashes after unlocking
until the remote control is inserted in the
ignition, but for no longer than approx.
5 minutes: your vehicle has been disturbed
while you were away.
Tilt alarm sensor
The tilt of the vehicle is monitored. The alarm
system reacts, e.g. to attempts to steal a wheel
or tow the vehicle.
Interior motion sensor
Coupe
In order for the interior motion sensor to func-
tion properly, the windows and glass roof must
be completely closed
*.
Convertible
The interior of the car is monitored up to the
height of the seat cushions. Thus the alarm sys-
tem is activated together with the interior
motion sensor even if the convertible top is
open. The alarm can be triggered unintention-
ally by falling objects such as leaves, refer to
Avoiding unintentional alarms.
Avoiding unintentional alarms
The tilt alarm sensor and interior motion sensor
may be switched off at the same time. This pre-
vents unintentional alarms, e.g. in the following
situations:
>In duplex garages
>During transport on car-carrying trains,
boats/ships or on a trailer
>When animals are to remain in the vehicle

Under the hood
212
Under the hood
Do not work on the car unless you pos-
sess the necessary technical knowledge.
If you are unfamiliar with the statutory guide-
lines, have any work on the vehicle performed
only by a BMW center or by a workshop that
work according to BMW repair procedures with
correspondingly trained personnel. If this work
is not carried out properly, there is a danger of
subsequent damage and related safety haz-
ards.<
Hood
Releasing
Pull the lever.
Opening
To avoid damage, make sure that the
wiper arms are against the windshield
before you open the engine compartment. Do
not open the engine hood before the engine has
cooled down, otherwise injuries may result.<
Press the release handle and open the hood.
Closing
Close the hood from a height of approx. 16 in/
40 cm with momentum. It must be clearly heard
to engage.
Make sure that the closing path of the
hood is clear, otherwise injuries may
result.
If you see any signs while driving your vehicle
that the hood is not completely closed, stop at
once and close it securely.<

Under the hood
214
Possible displays
1Oil level OK
2Oil level is being checked.
This can take about 3 minutes if the car is at
a standstill on a level surface, or about
5 minutes while the car is on the move.
3Oil level down to minimum:
Add engine oil as soon as possible, but no
more than 1 US quart/1 liter, refer also to
Adding engine oil on page215.
4Oil level is too high.
Too much oil will harm the engine.
Have the vehicle checked without
delay.<
5The oil level sensor is defective.
Do not add engine oil. You can continue
your journey. Note the newly calculated dis-
tance remaining to the next oil service, refer
to page217. Have the system checked as
soon as possible.
Display via iDrive
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 "Info sources" and press the control-
ler.
4.Select "Service" and press the controller.
5.If necessary, move the highlight marker to
the uppermost field. Turn the controller
until "Service requirements" is selected and
press the controller.
6.If necessary, move the highlight marker to
the second field from the top. Turn the con-
troller until "Engine oil level" is selected and
press the controller.
The oil level is displayed.
To exit the display immediately:
Select and press the controller.

Under the hood
216
Coolant
Do not add coolant to the cooling system
when the engine is hot. Escaping coolant
can cause burns.<
Coolant consists of half water and half additive.
Not all commercially available additives are suit-
able for your BMW. Ask your BMW center for
suitable additives.
Only use suitable additives, otherwise
engine damage may result. Because
additives are harmful to your health, it is impor-
tant to follow the instructions on the contain-
ers.<
Comply with the appropriate environ-
mental protection regulations when dis-
posing of coolant additives.<
Checking coolant level
1.Do not open the engine hood before the
engine has cooled down.
2.Turn the cap of the expansion tank a little
counterclockwise to allow any accumulated
pressure to escape, then continue turning
to open.
3.The coolant level is correct if it is between
the maximum and minimum marks in the
filler neck, refer also to the diagram next to
the filler neck.
4.If the coolant is low, slowly add coolant up to
the specified level; do not overfill.
5.Turn the cap until there is an audible click.
6.Have the reason for the coolant loss elimi-
nated as soon as possible.

Everything from A - Z
250 Fuel consumption statistics,
refer to Average fuel
consumption69
Fuel display, refer to Fuel
gauge68
Fuel filler door202
– releasing in the event of
electrical malfunction202
Fuses227
G
Garage door opener, refer to
Integrated universal remote
control103
Gasoline, refer to Required
fuel202
Gasoline display, refer to Fuel
gauge68
Gear change
– with automatic
transmission61
– with manual transmission60
Gear display, with automatic
transmission60
Gearshift lever
– automatic transmission with
Steptronic61
– manual transmission60
General driving notes115
Glass roof, electric39
– closing after electrical
malfunction40
– convenient operation32
– opening, closing39
– operation with convenient
access36
– pinch protection system40
– raising39
– remote control30
Glove compartment106
GPS navigation, refer to
Navigation system122
Grills, refer to Air vents97
Gross vehicle weight, refer to
Weights239
H
Halogen lamps
– replacing bulbs224
Handbrake, refer to Parking
brake59
Hands-free system, refer to
Microphone for hands-free
mode14
Hazard warning flashers14
"HD radio"157
HD radio, refer to High
Definition Radio157
Head airbags89
Headlamp control,
automatic92
Headlamp cover224
Headlamp flasher62
– indicator lamp13
Headlamps
– replacing bulbs224
Head restraints47
Heated
– seats49
Heated mirrors52
Heating
– mirrors52
– seats49
Heating, rear window100
Heating and ventilation97
Heating during a stop100
Heavy loads, refer to Stowing
cargo117
Height, refer to
Dimensions237
Height adjustment
– steering wheel53
High beams94
– indicator lamp13
– replacing bulbs224
High Definition Radio157
High-pressure
washer219,220
High water, refer to Driving
through water116
Highways, refer to Route
criteria134
Hills116
Holders for cups107Home address133
"Home address" in
navigation134
Hood212
Hot exhaust system115
"Hour memo"76
"House number" in
destination entry126
Hydraulic brake assist, refer to
Dynamic Brake Control82
Hydroplaning115
I
IBOC, refer to High Definition
Radio157
Ice warning, refer to Outside
temperature
warning67
ID3 tag, refer to Information
about the track165
Identification marks
– tire coding208
iDrive16
– adjusting brightness80
– automatic climate control98
– changing date and time75
– changing language80
– confirming selection or
entry19
– displays, menus17
– lists19
– menu guidance17
– operating principle16
– selecting a menu item19
– status information20
– switching menu pages19
– symbols18
Ignition58
– switched off58
– switched on58
Ignition key, refer to
Integrated key/remote
control28
Ignition key position 1, refer to
Radio readiness58
Ignition key position 2, refer to
Ignition on58
Ignition lock58