cooling BMW Z4 3.0I ROADSTER 2008 E85 Owner's Manual

At a glance
Controls
Driving tips
Mobility Reference
15
1Reading lamps*61
2Interior lamps61
3Air conditioning62
or automatic climate control
*65
5Indicator/warning lamp
passenger airbags37
6Central locking system21
7Hazard warning flashers
8Dynamic Driving Control44 Air distribution for air
conditioning63
Air distribution for automatic cli-
mate control
*66
Automatic air distribution and flow
rate
*66
Cooling function
*63,66
AUC Automatic recirculated-air
control
*67
Recirculated-air mode63,67
Maximum cooling
*66
Air flow rate63,66
Defrosting windows
*66
Rear window defroster63,67
4
Seat heating
*33
Roadster: opening the convertible
top
*27
Roadster: closing the convertible
top
*27
Dynamic Traction Control DTC51
Flat Tire Monitor FTM
*53
Tire Pressure Monitor TPM
*54

Climate
62
Climate
Air conditioning
1Air flow toward the windshield and side win-
dows
2Air to the upper body area
Ventilation63
3Air to the footwell
4Air distribution
5Cooling function
*
6Recirculated-air mode
7Temperature
8Air flow rate
9Rear window defroster

Reference
At a glance
Controls
Driving tips
Mobility
63
Air distribution
Direct the flow of air to the windows
, to the upper body area and to
the footwell . Intermediate settings
are possible.
Switching cooling function on/off
When the cooling function is on, the
air is cooled, dehumidified, then
reheated depending on the tempera-
ture setting.
Depending on the weather, the windshield may
fog over briefly when the engine is started.
Recirculated-air mode
If the air outside the car has an
unpleasant odor or contains pollut-
ants, temporarily shut off the supply
to the interior of the car. 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 manually controlled recirculated-air mode
should not be used continuously for lengthy
periods, otherwise the quality of the air inside
the car will gradually deteriorate.<
Temperature
For a higher temperature, turn the
rotary switch clockwise towards red.
For a lower temperature, turn the
rotary switch counterclockwise
towards blue.
Air flow rate
Adjust the air flow rate. The higher
the rate, the more effective the heat-
ing or cooling will be.
Switching the system on/off
Set the air flow rate to 0. Blower and air condi-
tioning are switched off and the air supply is cut
off.
To switch on the heater or air conditioning, set
any desired air flow rate.
Rear window defroster
The defroster switches off automati-
cally after a certain time.
Defrosting windows and removing
condensation
1.Air distribution1 in position .
2.Set air flow rate 2 to position 4.
3.Temperature3 to the right, red.
4.Switch on rear window defroster 4 to
defrost the rear window.
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.

Reference
At a glance
Controls
Driving tips
Mobility
65
Automatic climate control*
1Air flow toward the windshield and side win-
dows
2Air to the upper body area
Ventilation67
3Air to the footwell
4Air distribution, manual
5Defrosting windows and removing conden-
sation
6AUTO program7Air flow rate, manual
8Cooling function
9Maximum cooling
10Temperature
11AUC Automatic recirculated-air control/
Recirculated-air mode
12Rear window defroster

Climate
66
Comfortable interior climate
AUTO program 6 offers the ideal air distribution
and air flow rate for almost all conditions, refer
to AUTO program below. In addition, you can
select an interior temperature you find pleasant.
The following sections inform you in detail
about how to adjust the settings.
Air distribution, manual
Direct the flow of air to the windows
, to the upper body area and to
the footwell . Intermediate settings
are possible. The arrow lights up.
The automatic air supply remains unchanged.
You can switch the automatic air distribution
back on by pressing the AUTO button.
Defrosting windows and removing
condensation
Quickly removes ice and condensa-
tion from the windshield and side
windows.
AUTO program
The AUTO program adjusts the air
distribution to the windshield and
side windows, towards the upper
body area and into the footwell for
you. The air flow rate and your temperature
specifications will be adapted to outside influ-
ences as a result of seasonal changes, e.g. sun-
light or window condensation.
The cooling is switched on automatically with
the AUTO program.
The AUTO program functions only to a
limited extent when the convertible top is
open.<
Air flow rate, manual
Adjust the air flow rate. The arrow
lights up.
The automatic air distribution
remains unchanged. You can reactivate the
automatic mode for the air flow rate with the
AUTO button.The higher the air flow rate, the more effective
the air conditioning will be.
Switching the system on/off
Turn the rotary switch to 0. The automatic cli-
mate control is switched off and the air supply is
cut off.
To switch on the automatic climate control, set
any desired air flow rate.
Switching cooling function on/off
When the cooling function is on, the
air is cooled, dehumidified, then
reheated depending on the tempera-
ture setting.
Depending on the weather, the windshield may
fog over briefly when the engine is started.
The cooling function is automatically switched
on along with the AUTO program. The passen-
ger compartment can only be cooled while the
engine is running.
Maximum cooling
At outside temperatures above
327/06 and when the engine is
running, you obtain a maximum cool-
ing effect as soon as possible.
The automatic climate control switches to the
lowest temperature and operates in recircu-
lated-air mode. Air flows at maximum rate only
from the vents for the upper body area. You
should therefore open them for maximum cool-
ing.
Temperature
Set the desired temperature.
The values on the dial are approxima-
tions of the respective temperature
resulting in the passenger compartment.
The automatic climate control achieves this
temperature as quickly as possible regardless
of the season, using maximum cooling or heat-
ing power if necessary, and then maintains it.
If you switch between different tempera-
ture settings in quick succession, the

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.

Under the hood
94
Adding engine oil
Do not add the maximum amount of 1 US quart/
1 liter of engine oil until the warning lamp lights
up in the instrument cluster, refer to page92, or
until the oil level monitor shows "+1.0".
Add oil within the next 125 miles/200 km,
otherwise the engine could be dam-
aged.<
Keep oils, greases, etc. out of the reach of
children and comply with the warnings on
the containers. Otherwise, health hazards may
result.<
Oil change
Have your oil changed only by a BMW center or
a workshop that works according to BMW
requirements with the appropriately trained
personnel.
Approved engine oils
The quality of the engine oil is extremely impor-
tant for the function and life of an engine. BMW
continuously approves specific oils after con-
firming their suitability for use in its vehicles
with extensive testing.
Only use approved BMW High Performance
Synthetic Oil.
If BMW High Performance Synthetic Oil is not
available, you can add small quantities of other
synthetic oils in between oil changes. Only use
oils with the API SH specification or higher.
Your BMW center will be glad to answer
any questions regarding BMW High Per-
formance Synthetic Oil or other approved syn-
thetic oils. 1-800-831-1117 or visit the website
www.bmwusa.com to obtain this information.
Do not use any oil additives, as they could
cause engine damage under some cir-
cumstances.<
Viscosity classes
Viscosity is a measure of an oil's flow rating and
is categorized in SAE classes.
Selecting the appropriate SAE class depends
on the regional climatic conditions in which you
normally drive your BMW.
Approved oils belong to the 5W-40 and
5W-30 classes.<
These oils can be used for driving at all outside
temperatures.
Coolant
Warning lamp
The warning lamp lights up:
The coolant level is too low. Top up the
coolant as soon as possible.
Do not open the cooling system when the
engine is hot. If you do, escaping coolant
can cause burns.<
Coolant consists of water and coolant additives.
Not all commercially available additives are suit-
able for your BMW. Your BMW center knows
which additives are appropriate.
Only use approved additives, otherwise
the engine could be damaged. The addi-
tives are hazardous to health.<
Comply with the appropriate environ-
mental protection regulations when dis-
posing of coolant additives.<
Checking the coolant level
1.The engine must be at ambient tempera-
ture.
2.Turn the cap of the expansion tank a little
counterclockwise to allow any accumulated

Technical data
114
Capacities
Notes
Fuel tank US gal/liters approx. 14.5/55 Fuel specifications: page83
including reserve of US gal/liters approx. 2.1/8
Window washer system For details: page46
including headlamp washers US quarts/liters approx. 5.3/5.0
Cooling system including
heating circuitFor details: page94
>Manual transmission US quarts/liters 8.0/7.6
>Automatic transmission US quarts/liters 8.9/8.4

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