2008 BMW M3 cooling

At a glance
15Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
1Microphone for voice command system*
and for telephone in hands-free mode*
2SOS: initiating an Emergency Request
call
*230
3Reading lamps95
4Glass roof, electric
*38
5Interior lamps95
6Passenger airbag status lamp
*90
7Control Display16
8Hazard warning flashers
9Flat Tire Monitor FTM
*84
Tire Pressure Monitor TPM
*86
10Central locking system32
11Automatic climate control
12Ejecting audio CD15213Changing
>Radio station156
>Track166
14Selecting radio, CD and CD changer
15Selecting AM or FM waveband
16Ejecting navigation DVD124
18Controller16
Can be turned, pressed, or moved horizon-
tally in four directions
19Opening start menu on Control Display17
20Dynamic Stability Control DSC82
21Electronic Damper Control EDC
*84
22M Engine Dynamics Control POWER63
23Drive for navigation DVD124
24Programmable memory keys21
25Switching audio sources on/off and adjust-
ing volume152
26Drive for audio CD152 Air distribution to the
windshield97
Air distribution to the upper body
area97
Air distribution to the footwell97
Automatic air distribution and flow
rate98
Cooling function99
Automatic recirculated-air control
AUC98
Recirculated-air mode98
Maximum cooling98
Residual heat mode99
Air flow rate98
Defrosting windows99
Rear window defroster99
17
Heated seats*43
Roller sun blind
*105

Controls
29Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
>Calling up the preferred program of the M
Engine Dynamics Control POWER and
Electronic Damper Control EDC
* when
starting the vehicle, refer to Key-dependent
settings on page49
>Triple turn signal activation, refer to
page63
>Settings for the displays on the Control Dis-
play and in the instrument cluster:
>12h/24h format of the clock, refer to
page76
>Date format, refer to page76
>Brightness of the Control Display, refer
to page80
>Language on the Control Display, refer
to page79
>Units of measure for fuel consumption,
distance covered/remaining distances,
and temperature, refer to page71
>Show visual warning for Park Distance Con-
trol PDC
*, refer to page81
>Light settings:
>Welcome lamps, refer to page92
>Pathway lighting, refer to page93
>Daytime running lamps, refer to page93
>Automatic climate control: activating/deac-
tivating AUTO program, cooling function
and automatic recirculated-air control, set-
ting temperature, air flow rate and distribu-
tion, refer to page97 ff
>Entertainment:
>Audio volume, refer to page153
>Tone control, refer to page153
>Speed-dependent volume control, refer
to page153
Central locking system
The concept
The central locking system functions when the
driver's door is closed.The system simultaneously engages and
releases the locks on the following:
>Doors
>Luggage compartment lid
>Fuel filler door
Operating from outside
>Via the remote control
>Via the door lock
>In cars with convenient access
*, via the
handles on the driver's and front passen-
ger's doors
The anti-theft system is also operated at the
same time. It prevents the doors from being
unlocked using the lock buttons or door han-
dles. In addition, if the remote control is used,
the welcome lamps, interior lamps and the
door's courtesy lamps
* are switched on or off.
The alarm system
* is also armed or disarmed.
For further details of the alarm system,
refer to
page34.
Operating from inside
By means of the button for central locking, refer
to page32.
In the event of a sufficiently severe accident, the
central locking system unlocks automatically. In
addition, the hazard warning flashers and inte-
rior lamps come on.
Opening and closing:
Using the remote control
Persons or animals in a parked vehicle
could lock the doors from the inside. You
should therefore take the remote control with
you when you leave the vehicle so that the latter
can be opened from outside.<
Unlocking
Press the button.
The interior lamps, the courtesy lamps
* and the
welcome lamps come on.

Climate
96
Climate
1Airflow directed toward the windshield and
side windows
2Air to the upper body area
Draft-free ventilation99
3Air to the footwell
4Air distribution, manual
5Temperature adjustment, left-hand side of
passenger compartment
6Maximum cooling
7AUTO program
8Air flow rate, manual
9Automatic recirculated-air control AUC/
Recirculated-air mode10Temperature adjustment, right-hand side
of passenger compartment
11Residual heat
12Defrosting windows and removing conden-
sation
13Switching cooling function on/off manually
14Rear window defroster
15Air grill for interior temperature sensor –
please keep clear and unobstructed
The current setting for the air distribution is dis-
played on the Control Display, refer to page97.

Controls
97Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Automatic climate control
Comfortable interior climate
AUTO program7 offers the ideal air distribution
and air flow rate for almost all conditions, refer
to AUTO program below. All you need to do is
select an interior temperature which is comfort-
able for you.
The following sections inform you in detail
about how to adjust the settings.
Most settings are stored for the remote control
currently in use, refer also to Personal Profile
settings on page28.
Adjusting air distribution manually
The air distribution can be
switched on and off manually. The
air is directed to the windshield, to
the upper body area and to the
footwell. Automatic air distribution adjustment
is deactivated.
You can switch the automatic air distribution
back on by pressing the AUTO button. This
automatically switches on the cooling function
as well.
Fine adjustments to manual air
distribution
You can set the rate of incoming airflow for
manual air distribution.
iDrive, for operating principle refer to page16.
1.Press the button.
This opens the start menu.
2.Move the controller to the left to open "Cli-
mate".3.Select "Vent settings" and press the con-
troller.
4.Select the desired field.
5.Turn the controller to set the air distribution.
1Airflow directed toward the windshield and
side windows
2Air to the upper body area
3Air to the footwellTemperature
Set the desired temperatures indi-
vidually for the driver's and front
passenger's sides.
The automatic climate control
achieves this temperature as quickly as possi-
ble regardless of the season, using maximum
cooling or heating power if necessary, and then
maintains it.
When you switch between different tem-
perature settings in quick succession, the
automatic climate control does not have
enough time to achieve the set temperature.<
You can achieve maximum heating power with
the highest setting, regardless of the outside
temperature.
The lowest setting effects continuous cooling.

Climate
98
Maximum cooling
At outside temperatures above
327/06 and when the engine is
running, you obtain a maximum
cooling effect as soon as possible.
The automatic climate control goes into recir-
culated-air mode at the lowest temperature. Air
flows at maximum rate from the vents for the
upper body area. You should therefore open
them for maximum cooling.
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 influences as a result
of seasonal changes, e.g. sunlight or window
condensation.
The cooling is switched on automatically with
the AUTO program.
Intensity of the AUTO program
Press the AUTO button repeatedly to set the
intensity of the AUTO program. The current
setting is briefly displayed on the Control Dis-
play every time the button is pressed.
You can also set the intensity of the AUTO pro-
gram via iDrive.
1.Press the button.
This opens the start menu.
2.Move the controller to the left to call up "Cli-
mate".
3.Select "Automatic programs" and press the
controller.4.Select the desired intensity and press the
controller.
The selected intensity level of the auto-
matic program is switched on.
Adjusting air flow rate manually
Press the left side of the button to
reduce airflow. Press the right side
of the button to increase it.
You can reactivate the automatic mode for the
air flow rate with the AUTO button.
The air flow rate may be reduced or the blower
may be switched off entirely to save on battery
power. The display remains the same.
Switching the system on/off
With the blower at its lowest setting, press the
left side of the button to switch off the auto-
matic climate control. All displays are cleared
except for the rear window defroster if it is
switched on.
Press any button except REST or rear window
defroster to reactivate the automatic climate
control.
Automatic recirculated-air control
AUC/Recirculated-air mode
Switch on the desired operating
mode by pressing this button
repeatedly:
>LED 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 supply of outside air is permanently
shut off. The system then recirculates the
air currently within the vehicle.
If condensation starts to form on the
inside window surfaces during operation
in the recirculated-air mode, you should switch

Controls
99Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
it off while also increasing the air flow rate as
required.
The recirculated-air mode should not be used
continuously for lengthy periods, otherwise the
quality of the air inside the car will gradually
deteriorate.<
Via the button on the steering wheel
You can switch quickly between the recircu-
lated-air mode and the previous mode using an
individually programmable button
on the steer-
ing wheel, refer to page47.
Residual heat
The heat stored in the engine is
used to heat the passenger com-
partment, e.g. while stopped at a
school to pick up a child.
The function can be switched on when the fol-
lowing conditions are met:
>Up to 15 minutes after the engine has been
switched off
>While the engine is at operating tempera-
ture
>As long as battery voltage is sufficient
>At an outside temperature below 777/
256
The LED is lit when the function is on.
As of radio readiness, you can set the interior
temperature, the air flow rate and the air distri-
bution.
Defrosting windows and removing
condensation
Quickly removes ice and conden-
sation from the windshield and
front side windows.
Switch on the cooling function as well.
Switching cooling function on/off
The cooling function cools and
dehumidifies the incoming air
before reheating it as required,
according to the temperature setting. This
function is only available while the engine is
running.The cooling function helps prevent condensa-
tion on the windows or removes it quickly.
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.
Rear window defroster
The defroster is switched off auto-
matically after a certain time.
Depending on your vehicle's
equipment, the upper wires serve as an antenna
and are not part of the rear window defroster.
Ventilation
1Use the knurled wheels to smoothly open
and close the air vents
2Use the lever to change the direction of the
airflow
3Knurled wheel for more or less cool air from
the vents for the upper body area
Ventilation for cooling
Adjust the vent outlets to direct the flow of cool
air in your direction, 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.

Under the hood
222 cific oils after confirming their suitability for use
in its vehicles with extensive testing.
Do not use oil additives as these may
cause engine damage.<
Your BMW center will be glad to answer
any questions regarding BMW High Per-
formance Synthetic Oil or approved synthetic
oils.<
You can also call BMW of North America at
1-800-831-1117 or visit the website
www.bmwusa.com to obtain this information.
Viscosity ratings
Viscosity is a measure of an oil's flow rating and
is categorized in SAE classes.
Approved oils belong to the 10W-60 SAE
class.<
Alternative oil types
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 following specifications:
>Viscosity:
preferred: SAE 10W-60;
alternative: SAE 10W-40, SAE 5W-50 or
SAE 10W-50
>Specification:
API SJ/CF, API SK/CF or higher
Low ambient temperatures
The oils used at BMW factories for your vehicle
type are suitable for virtually any ambient tem-
perature. However, if the vehicle is operated at
temperatures below –47/–206 for extended
periods, your BMW center will be glad to rec-
ommend an optimal oil.
Coolant
Do not add coolant to the cooling system
when the engine is hot. Escaping coolant
can cause burns. 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.If the loss of coolant is substantial, have the
cause eliminated as soon as possible.

Reference 249
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Changes, technical, refer to
For your own safety5
Changing bulbs, refer to
Lamps and bulbs223
Changing the language on the
Control Display79
Changing the measurement
units on the Control
Display71
Changing wheels228
Chassis number, refer to
Engine compartment219
Check Control77
"Check Control
messages"78
Check Gas Cap204
Child-restraint fixing system
LATCH52
Child-restraint systems51
Child-safety lock53
Child seats, refer to
Transporting children
safely51
Chrome parts216
Chrome polish216
Cigarette lighter, refer to
Lighter107
Cleaning headlamps64
– washer fluid65
Cleaning your BMW, refer to
Care214
"Climate"97
Clock67
– 12h/24h format76
– setting time74
Closing
– from inside32
– from outside29
Clothes hooks106
Cockpit10
Cold start, refer to Starting the
engine55
Combined instrument, refer to
Instrument cluster12
Comfort access, refer to
Convenient access35
Comfort area, refer to Around
the center console14
"Comfort" with EDC84"Communication"184,194,1
95,196,197
Compact disc, refer to
– CD changer165
– CD player165
Compartment for remote
control, refer to Ignition
lock54
Compass
104
Computer68
– displays on Control
Display69
– hour signal75
Computer, refer to iDrive16
"Concert hall" for Tone
control154
"Concierge"197
Concierge service197
Condensation, refer to When
the vehicle is parked116
Condition Based Service
CBS212
Configuring settings, refer to
Personal Profile28
Confirmation signals for
locking/unlocking the
vehicle31
Connecting vacuum cleaner,
refer to Connecting
electrical appliances108
Consumption, refer to
Average consumption69
Consumption indicator, refer
to Average consumption69
"Continue guidance to
destination?"140
Control Center, refer to
iDrive16
Control Display
– brightness80
– changing the language79
– switching off/on21
Control Display, refer to
iDrive16
Controller, refer to iDrive16
Controls and displays10
Control unit, refer to iDrive16
Convenient access35
– replacing the battery36Convenient operation
– glass roof30
– glass roof with convenient
access36
– windows30
– windows with convenient
access36
Coolant222
– checking level222
Coolant temperature68
Cooling, maximum98
Cooling fluid, refer to
Coolant222
Cooling system, refer to
Coolant222
Copyright2
Corner-illuminating lamps,
refer to Adaptive Head
Light94
Cornering lamps, refer to
Adaptive Head Light94
Correct tires210
Courtesy lamps, refer to
Interior lamps95
Cross-hairs in navigation131
Cruise control65
Cruising range69
Cup holders107
Curb weight, refer to
Weights240
"Current position"147
Current position
– displaying147
– entering135
– storing135
"Customer
Relations"188,196
D
Dashboard, refer to
Cockpit10
Dashboard, refer to
Instrument cluster12
Dashboard lighting, refer to
Instrument lighting94