2008 BMW Z4 3.0SI COUPE sensor

At a glance
Controls
Driving tips
Mobility Reference
11
8Instrument cluster12
10Buttons
* on the steering wheel
11Ignition lock4012Horn: the entire surface
14Releasing the hood91
15Opening the luggage compartment lid/
tailgate21 7
Turn signal indicators44
High beams, headlamp flasher60
Roadside parking lamps
*60
Computer
*50
9Windshield wipers45
Rain sensor
*45
Volume
>Press: to accept and end a
telephone call; to start dialing
for selected telephone num-
bers
>Press longer: activate and
deactivate voice entry
*
Fast forward/rewind
>Radio
Press: next station stored
Press longer: station search
>CD
Press: jump to next track
Press longer: fast forward/
rewind
>Telephone
Scan register of names
Display/hide telephone book. Dis-
play the entries one after another
with the forward/backward buttons
13
Cruise control*46

Reference
At a glance
Controls
Driving tips
Mobility
23
The handle recess in the interior trim of the lug-
gage compartment lid makes it easier to pull
down.
Make sure that the closing path of the
luggage compartment lid is clear, other-
wise injuries may result.<
Cargo bay
Emergency release
Pull the lever in the cargo bay. The luggage
compartment lid/tailgate is unlocked.
Roadster: increasing cargo bay
capacity
The cargo bay can be enlarged when the con-
vertible top is closed.
Turn the handles on both sides of the cargo bay
outward beyond the resistance point at the
same time, arrow 1.
The convertible top compartment panel swings
up, arrow 2.
Before opening the convertible top:
Turn both handles inward.
The convertible top compartment panel is
folded down.To avoid any damage when opening the
convertible top, make sure that the con-
vertible top compartment panel in the cargo bay
has been folded down.<
Alarm system*
The concept
The vehicle alarm system responds:
>When a door, the hood or the luggage com-
partment lid/tailgate is opened
>When attempts are made to start the vehi-
cle
>When there are movements in the vehicle
interior: interior motion sensor, refer to
page24
>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
page24
>When there is an interruption in the power
supply from the battery
The alarm system signals unauthorized entry
attempts for a short time by means of:
>An acoustic alarm
>Switching on the hazard warning flashers
>Flashing the high beams
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.
The hazard warning flashers light up once when
the alarm system has been properly armed.
You can have different acknowledgment
signals set to confirm arming and disarm-
ing.<
Even when the alarm system is armed, you can
open the luggage compartment lid/tailgate
using the button on the remote control,
refer to page20. When you subsequently close
the luggage compartment lid/tailgate, it is
locked again and monitored.

Opening and closing
24 Manual operation of the tailgate triggers
the alarm. Refer to page21.<
Switching off an alarm
>Unlock the car with the remote control, refer
to page19.
>Turn the master key in the ignition lock to
position 1, refer to page40.
Indicator lamp displays
>The indicator lamp beneath the interior mir-
ror flashes continuously:
The system is armed.
>The indicator lamp flashes immediately
after the vehicle is locked:
Doors, hood or luggage compartment lid/
tailgate are not properly closed. Even if you
do not close the alerted area, the system
begins to monitor the remaining areas, and
the indicator lamp flashes continuously
after approx. 10 seconds. However, the
interior motion sensor is not activated.
>If the indicator lamp goes out immediately
after the vehicle is unlocked:
Your vehicle has not been disturbed while
you were away.
>If the indicator lamp flashes for 10 seconds
immediately after the vehicle is unlocked:
Your vehicle has been disturbed while you
were away.
After an alarm has been triggered, the indicator
lamp will flash continuously.
Tilt alarm sensor
The inclination 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
All windows must be closed in order for the inte-
rior motion sensor to function optimally.
Roadster
The system monitors the footwells and the
seating areas of the driver and passenger. Even
when the convertible top is open, the alarm sys-
tem including the interior motion sensor is
armed. Objects falling into the vehicle, e.g.
leaves, can trigger unintentional alarms, refer to
Avoiding unintentional alarms.
Avoiding unintentional alarms
The tilt alarm sensor and interior motion sensor
can be deactivated at the same time. In this way
you can avoid unintentional alarms, e.g. in the
following situations:
>In duplex garages
>When transporting the vehicle on car-carry-
ing trains, by ship or on a trailer
>When animals are to remain in the vehicle
Switching off tilt alarm sensor and
interior motion sensor
>Press the button on the remote
control twice in a row.
The indicator lamp lights up briefly and then
flashes continuously. The tilt alarm sensor and
the interior motion sensor are deactivated until
the vehicle is again unlocked and locked.
Windows
To prevent injuries, exercise care when
closing the windows and keep them in
your field of vision until they are shut.
Take the key with you when you leave the car,
otherwise children could operate the windows
and possibly injure themselves.<

Reference
At a glance
Controls
Driving tips
Mobility
45
Washer/wiper system/
Rain sensor*
0Wipers retracted
1Intermittent or rain sensor mode
2Normal wiper speed
3Fast wiper speed
4Brief wipe
5Selecting speed for intermittent mode or
setting sensitivity of the rain sensor
Intermittent mode
Not in vehicles with a rain sensor.
Rotary dial 5 is used to set the wipe interval to
one of four levels.
In addition, the wipe interval is varied automati-
cally depending on road speed.
Rain sensor*
On vehicles with a rain sensor, the wipe interval
is automatically controlled according to rain
intensity. The sensor is mounted on the wind-
shield, directly in front of the interior rearview
mirror.
Deactivate the rain sensor before enter-
ing an automatic car wash. Failure to do
so could result in damage caused by undesired
wiper activation.<
Activating
With the ignition key in position 1 or higher,
move the lever to position 1.
In any case, the wipers will move once across
the windshield.
You can leave the lever continuously in
position1. Then, as long as the ignition key is in position 1 or higher, you only need to activate
the rain sensor.
To do so:
>Turn rotary dial 5 briefly or
>Clean the windshield, refer to Cleaning
windshield and headlamps* below
Adjusting sensitivity
Turn the rotary wheel 5.
Deactivating
Flip the lever to position 0.
Normal wiper speed
When the vehicle is stopped the wipers auto-
matically switch to intermittent wipe, except in
vehicles with a rain sensor.
Fast wiper speed
When the vehicle is stopped the wipers operate
at normal wiping speed, except in vehicles with
a rain sensor.
Cleaning windshield and headlamps*
0Wipers retracted
1Cleaning windshield and headlamps
*
Do not use the washers if there is any
danger that the fluid will freeze on the
windshield, otherwise vision could be
obscured. Antifreeze should therefore be
added to the fluid, refer to Washer fluid on
page46.
Do not operate washing mechanisms when the
washer fluid reservoir is empty, otherwise you
will damage the washer pump.<

Reference
At a glance
Controls
Driving tips
Mobility
67
automatic climate control does not have
enough time to achieve the set temperature.<
AUC Automatic recirculated-air
control/Recirculated-air mode
Switch on the desired operating
mode by pressing this button repeat-
edly:
>LEDs off: outside air flows in continuously.
>Left-hand LED on, AUC mode: a sensor
detects pollutants in the outside air. If nec-
essary, the system blocks the supply of out-
side air and recirculates the inside air. As
soon as the concentration of pollutants in
the outside air has decreased sufficiently,
the system automatically switches back to
outside air supply.
>Right-hand LED on, recirculated-air mode:
the inflow of outside air is shut off perma-
nently. The system recirculates the air
within the vehicle.
If the windows fog over in the recircu-
lated-air mode, you should switch it off
and, if necessary, increase the air flow rate.
The recirculated-air mode should not be used
over an extended period of time, otherwise the
air quality inside the car will deteriorate contin-
uously.<
Rear window defroster
The defroster switches off automati-
cally after a certain time.
Ventilation
1Knurled wheels to set any vent position
from fully open to closed
2Slide for adjusting air flow direction
Ventilation for cooling
Adjust the vent outlets to direct the flow of cool
air toward you, for instance if it has become too
hot in the car.
Draft-free ventilation
Set the vent outlets so that the air flows past
you and not straight at you.
Microfilter/activated-charcoal filter
The microfilter removes dust and pollen from
the incoming air. The activated-charcoal filter
provides additional protection by filtering gas-
eous pollutants from the outside air. Your BMW
center replaces this combined filter during reg-
ular maintenance. A substantial reduction in air
flow indicates that the filter needs to be
replaced earlier.

Reference
At a glance
Controls
Driving tips
Mobility
93
Add engine oil at the earliest opportunity, e.g.
when you stop to refuel.
The warning lamp lights up in yellow
within 30 seconds after the engine is
started: the oil level sensor is defective.
It is not possible to issue a current or accurate
measurement. Have the system checked as
soon as possible.
Checking the oil level
Your car is equipped with an electronic oil-level
monitor.
For a precise measurement and display of the
oil level, it is necessary that the engine be at
operating temperature, i.e. after uninterrupted
driving for at least approx. 6.5 miles/10 km. You
can have the oil level displayed while you are
driving, or while the vehicle is at a standstill on a
level surface and the engine is running.
You can have the oil level reading displayed in
the instrument cluster.
Press button1. The oil level is checked and dis-
played for approx. 15 seconds.
To exit the display sooner, press button 1 again.
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 1 US quart/1 liter of engine oil as soon
as possible, refer also to Adding engine oil.
4Oil level is too high.
Have the vehicle checked immedi-
ately, as excessive oil can damage the
engine.<
5The oil level sensor is defective:
it is not possible to issue a current or accu-
rate measurement.
Do not add engine oil. You can continue
your journey. Have the system checked as
soon as possible.

Everything from A to Z
116
Everything from A to Z
Index
A
ABS Antilock Brake
System51
– indicator lamp12
Accident, refer to Emergency
call103
Acknowledgment signal for
locking/unlocking vehicle19
Activated-charcoal filter for
automatic climate control67
Additives
– coolant94
– engine oil94
Adjusting
– seats30
Adjusting the thigh support32
Airbags56
– deactivating37
– indicator/warning lamp13
– passenger airbags indicator
lamp37
– reactivation37
– safe seating position30
Airbag switch, refer to Key
switch for passenger
airbags36
Air conditioning62
Air-conditioning operation,
refer to Cooling
function63,66
Air distribution
– air conditioning63
– automatic66
– automatic climate control66
– individual63,66
– manual66
Air flow rate
– air conditioning63
– automatic climate control66
Airing out, refer to
Ventilation63,67Air outlets, refer to
Ventilation63,67
Air pressure, refer to Tire
inflation pressure84
Air recirculation, refer to
Recirculated-air
mode63,67
AKI, refer to Fuel
specifications83
Alarm system23
– avoiding unintentional
alarms24
– interior motion sensor24
– switching off an alarm24
– tilt alarm sensor24
All-season tires, refer to
Winter tires87,89
Ambient air, refer to
Recirculated-air
mode63,67
Ambient temperature
display48
Antenna, refer to the Caring
for your vehicle brochure
Antifreeze46,94
– coolant94
– washer fluids46
Antilock Brake System
ABS51
– indicator/warning lamp12
– indicator lamp13
Anti-theft alarm system, refer
to Alarm system23
Anti-theft protection19,23
Approved engine oils94
Artificial leather, refer to the
Caring for your vehicle
brochure
Ashtray69
Assistance systems, refer to
Driving stability control
systems51AUC Automatic recirculated-
air control67
Audio device, external68
Automatic
– air distribution66
– air flow rate66
– cruise control46
– headlamp control59
– luggage compartment lid
operation22
– recirculated-air control
AUC67
– tailgate operation21
Automatic car wash, refer to
the Caring for your vehicle
brochure
Automatic climate control65
Automatic convertible top27
Automatic lamps59
Automatic transmission with
Steptronic42
– indicator lamp13
– interlock40,42
– selector lever43
– selector lever lock42
– shiftlock42
– shift paddles on steering
wheel43
– towing the vehicle106
– tow-starting106
AUTO program for automatic
climate control66
AUX-In jack68
Average fuel consumption50
– setting unit of measure50
Average speed50
– setting unit of measure50
Avoiding unintentional
alarms24
Axle loads, refer to
Weights113

Everything from A to Z
118 Central locking
– from inside21
Central locking system19
Changes, technical, refer to
For your own safety5
Changing a wheel101
– Run-Flat Tires101
Charge indicator lamp12,102
Check gas cap, indicator
lamp13
Child-restraint mounting
system, LATCH38
Child-restraint systems37
Child seat, refer to Installing
child-restraint systems37
Chrome parts, refer to the
Caring for your vehicle
brochure
Cigarette lighter69
Cleaning the rear window,
refer to the Caring for your
vehicle brochure
Cleaning the vehicle, refer to
the Caring for your vehicle
brochure
Cleaning the windows
– automatically, refer to Rain
sensor45
– reservoir capacity114
– spray nozzles46
– washer/wiper system45
– washer fluid46
– washer fluid reservoir46
Clock49
– 12h/24h mode50
– onboard computer50
– setting50
– setting, refer also to Owner's
Manual for Radio/Onboard
Computer
Clothes hooks71
Cockpit10
Cold start, refer to Starting the
engine40
Combination, wheel/tire88
Comfort area, refer to Around
the center console14Compact disc operation, refer
to Owner's Manual for
Radio/Onboard Computer
Computer50
– button BC50
– clock, 12h/24h mode50
– refer to Owner's Manual for
Onboard Computer
Computer, refer to the
separate Owner's Manual
Condensation, refer to When
the vehicle is parked77
Condensation, removing from
windows
– air conditioning63
– automatic climate control66
Configuring settings, refer to
Vehicle Memory, Key
Memory18
Connecting vacuum cleaner,
refer to Connecting
electrical appliances70
Consumption, refer to
Average fuel
consumption50
Consumption display, refer to
Fuel gauge48
Controls, refer to Cockpit10
Convenience operation
– convertible top20
– from outside20
– windows20
Convertible top25,27
– care, refer to the Caring for
your vehicle brochure
– convenience operation20
– electrical fault28
– emergency closing28
– fully automatic27
– malfunction28
– manual25
– mechanical25
Convertible top compartment
panel23
Coolant94
– checking level94
– indicator lamp13
– thermometer49
Coolant temperature49Coolant water, refer to
Coolant94
Cooling
– maximum66
– refer to Switching cooling
function on/off63,66
Cooling fluid, refer to
Coolant94
Cooling function
– air conditioning63
– automatic climate control66
Cooling system, refer to
Capacities114
Cooling system, refer to
Coolant94
Copyright2
Correct tires89
Cruise control46
Cruising range50
Cup holders, refer to
Beverage holders69
Curb weight, refer to
Weights113
Cylinders, refer to Engine
data110
D
Dashboard, refer to
Cockpit10
Dashboard lighting, refer to
Instrument lighting60
Data, technical
– capacities114
– dimensions111,112
– engine110
– measurements111,112
– weights113
Daytime running lamps59
DBC Dynamic Brake
Control51
– indicator/warning lamp13
Deadlocking, refer to
Locking19
Defective bulb59
Defrosting, windows63,66
Defrosting the windshield,
refer to Defrosting
windows63,66