2008 BMW 335I COUPE Cooling system

At a glance
15Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
1Coupe: microphone for voice command
system
* and for telephone in hands-free
mode
*
Convertible: microphone on steering col-
umn
2SOS: initiating an Emergency Request
call
*236
3Reading lamps103
4Coupe: glass roof, electric
*39
5Interior lamps103
6Passenger airbag status lamp
*98
7Control Display16
8Hazard warning flashers
9DTC Dynamic Traction Control90
10Central locking system32
11Automatic climate control
12Ejecting audio CD16013Changing
>Radio station164
>Track174
14Selecting radio, CD and CD changer
15Selecting AM or FM waveband
16Ejecting navigation DVD132
18Controller16
Can be turned, pressed, or moved horizon-
tally in four directions
19Opening start menu on Control Display17
21Drive for navigation DVD132
22Programmable memory keys21
23Switching audio sources on/off and adjust-
ing volume160
24Drive for audio CD160 Air distribution to the
windshield105
Air distribution to the upper body
area105
Air distribution to the footwell105
Automatic air distribution and flow
rate106
Cooling function107
AUC Automatic recirculated-air
control106
Recirculated-air mode106
Maximum cooling106
Residual heat mode107
Air flow rate106
Defrosting windows107
Rear window defroster107
17
Heated seats*49
PDC Park Distance Control
*88
Coupe:
Roller sun blind
*113
Coupe:
HDC Hill Descent Control
*90
20Convertible:
Opening and closing retractable
hardtop41

Controls
29Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
>Settings for the display on the Control Dis-
play and in the instrument cluster:
>12h/24h format of the clock, refer to
page82
>Date format, refer to page83
>Brightness of the Control Display, refer
to page86
>Language on the Control Display, refer
to page86
>Units of measure for fuel consumption,
distance covered/remaining distances,
and temperature, refer to page78
>Show visual warning for Park Distance Con-
trol PDC
*, refer to page88
>Light settings:
>Welcome lamps, refer to page100
>Pathway lighting, refer to page101
>Daytime running lamps, refer to
page101
>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 page105 ff
>Entertainment:
>Audio volume, refer to page161
>Tone control, refer to page161
>Speed-dependent volume control, refer
to page161
Central locking system
The concept
The central locking system is ready for opera-
tion whenever the driver's door is closed.
The system simultaneously engages and
releases the locks on the following:
>Doors
>Luggage compartment lid
>Fuel filler door
> Convertible: center armrest and glove com-
partment
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
page35.
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.<
Convertible: to operate the retractable
hardtop with the remote control, the
doors and luggage compartment lid must be
closed and the cargo bay partition must be
folded down and engaged on both sides. Refer
also to page41.<
Unlocking
Press the button.
The interior lamps, the courtesy lamps
* and the
welcome lamps come on.

Climate
106
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.
Convertible program
When the hardtop is open, the Convertible pro-
gram is selectable as well. In the Convertible
program, the automatic climate control is opti-
mized for driving with the hardtop open. In addi-
tion, the air flow rate is increased as vehicle
speed increases.
When the Convertible program has been
selected, it is automatically activated every time
the hardtop is opened.
The effectiveness of the Convertible pro-
gram can be enhanced considerably by
installing the wind deflector.<
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.
AUC Automatic recirculated-air
control/Recirculated-air mode
Switch on the desired operating
mode by pressing this button
repeatedly:
>LED off: outside air flows in continuously.

Controls
107Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
>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
it off while also increasing the air flow rate as
required.
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.<
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 page11.
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

Climate
108
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.
Ventilation in the rear
1Use the knurled wheel to adjust the temper-
ature
>Turn toward blue: colder
>Turn toward red: warmer
2Use the knurled wheel to smoothly open
and close the air vents
3Use the lever to change the direction of the
airflow
Microfilter/activated-charcoal filter
The microfilter traps dust and pollen in the
incoming air. The activated-charcoal filter pro-
vides additional protection by filtering gaseous
pollutants from the outside air. Your BMW cen-
ter replaces this combined filter during routine
maintenance.
Parked car ventilation
The concept
The parked car ventilation provides ventilation
to the passenger compartment and lowers its
temperature, if necessary. It is ready for use at
any outside temperature, as of radio readiness.The parked car ventilation remains switched on
for 30 minutes. Two different switch-on times
can be preselected. The system can also be
switched on and off directly.
Due to its high power consumption, it should
not be switched on twice in a row without driv-
ing in between to allow the battery to recharge.
The air emerges from the air vents for the upper
body area in the instrument panel. The air vents
must therefore be open.
The parked car ventilation system is operated
via iDrive.
Switching on/off directly
iDrive, for operating principle refer to page16.
1.Open the start menu.
2.Move the controller to the left to open "Cli-
mate".
3.Select "Parked car operation" and press the
controller.
4.Select "Automatic ventilation" and press
the controller.
5.Select "Parked car ventilation" and press
the controller.
The parked car ventilation is switched on.
The symbol on the automatic climate control
display flashes.
Preselecting switch-on times
iDrive, for operating principle refer to page16.
1.Open the start menu.
2.Move the controller to the left to open "Cli-
mate".
3.Select "Parked car operation" and press the
controller.

Mobility
227Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
more than 1 US quart/1 liter, refer also to
Adding engine oil below.
>"Engine oil level too high"
Too much oil will harm the engine.
Have the vehicle checked without
delay.<
>"Please observe recalculated service inter-
val for engine oil"
Do not add engine oil. You can continue
your journey. Note the newly calculated dis-
tance remaining to the next oil service, refer
to page79. Have the system checked as
soon as possible.
Adding engine oil
Do not add 1 US quart/1 liter of engine oil until a
corresponding message is shown on the Con-
trol Display.
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 relevant
warnings on the containers. Otherwise, health
hazards may result.<
Oil change
Have oil changed only at your BMW center or at
a workshop that works according to BMW
repair procedures with correspondingly trained
personnel.
Specified engine oils
The quality of the engine oil selected has critical
significance for the operation and service life of
an engine. BMW continuously approves spe-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.<
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 SM specification or higher.
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.
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
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.<

Reference 255
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Changes, technical, refer to
For your own safety5
Changing bulbs, refer to
Lamps and bulbs231
Changing the language on the
Control Display86
Changing the measurement
units on the Control
Display78
Changing wheels234
Chassis number, refer to
Engine compartment225
Check Control83
"Check Control
messages"85
Child-restraint fixing system
LATCH57
Child-restraint systems56
Child seats, refer to
Transporting children
safely56
Chrome parts, care, refer to
Caring for your vehicle
brochure
Cigarette lighter, refer to
Lighter116
Cleaning, refer to Caring for
your vehicle brochure
Cleaning headlamps65
– washer fluid65
"Climate"105
Clock74
– 12h/24h mode82
– setting time81
Closing
– from inside32
– from outside29
Clothes hooks115
Cockpit10
Cold start, refer to Starting the
engine60
Combined instrument, refer to
Instrument cluster12
Comfort access, refer to
Convenient access36
Comfort area, refer to Around
the center console14
"Communication"192,202,2
03,204Compact disc, refer to
– CD changer173
– CD player173
Compartment for remote
control, refer to Ignition
lock59
Compass112
Computer75
– displays on Control
Display76
– hour signal82
Computer, refer to iDrive16
"Concert hall" for Tone
control162
"Concierge"
204
Concierge service204
Condensation, refer to When
the vehicle is parked126
Condition Based Service
CBS229
Configuring settings, refer to
Personal Profile28
Confirmation signals for
locking/unlocking the
vehicle31
Connecting vacuum cleaner,
refer to Connecting
electrical appliances116
Consumption, refer to
Average consumption76
Consumption display
– average consumption76
"Continue guidance to
destination?"148
Control Center, refer to
iDrive16
Control Display
– brightness86
– changing the language86
– switching off/on21
Control Display, refer to
iDrive16
Controller, refer to iDrive16
Controls and displays10
Control unit, refer to iDrive16
Convenient access36
– replacing the battery38
– what to observe before
entering a car wash37Convenient loading in
convertible31
Convenient operation
– glass roof30
– glass roof with convenient
access37
– retractable hardtop30
– windows30
– windows with convenient
access37
Convertible
– bag holder118
– convenient loading31
– enlarging cargo bay117
– folding down rear
backrest118
– retractable hardtop41
– rollover protection
system98
– securing cargo128
– stowing cargo127
Coolant227
– checking level228
Coolant temperature75
Cooling, maximum106
Cooling fluid, refer to
Coolant227
Cooling system, refer to
Coolant227
Copyright2
Corner-illuminating lamps,
refer to Adaptive Head
Light101
Cornering lamps, refer to
Adaptive Head Light101
Correct tires222
Courtesy lamps, refer to
Interior lamps103
Cross-hairs in navigation139
Cruise control66
– active67
– malfunction67
Cruising range75
Cup holders115
Curb weight, refer to
Weights247
"Current position"155

Reference 257
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Driving tips, refer to Driving
notes124
Dry air, refer to Cooling
function107
DSC Dynamic Stability
Control89
DTC Dynamic Traction
Control90
– indicator/warning lamp90
DVD for navigation132
Dynamic Brake Control
DBC89
"Dynamic route" in
navigation145
Dynamic Stability Control
DSC
– indicator/warning lamp90
Dynamic Traction Control
DTC
– indicator/warning lamp90
E
EBV Electronic brake-force
distribution89
Eject button, refer to Buttons
on the CD player160
Electrical malfunction
– door lock32
– driver's door32
– fuel filler door210
– glass roof40
– luggage compartment lid33
Electric seat adjustment46
Electric steering wheel lock
– with convenient access37
Electronic oil level check225
Emergency actuation,
automatic transmission,
refer to Overriding selector
lever lock63
Emergency operation
– fuel filler door, manual
release210
Emergency operation, refer to
Closing manually
– glass roof40Emergency operation, refer to
Manual operation
– door lock32
Emergency release
– luggage compartment lid
from inside34
Emergency Request236
Emergency services, refer to
Roadside Assistance236
"Enabled services"206
"Enable services"207
"End call"193
Energy, saving
– saving fuel124
Engine
– breaking in124
– data244
– overheated, refer to Coolant
temperature75
– speed244
– starting60
– starting, convenient
access36
– switching off60
Engine compartment225
Engine coolant, refer to
Coolant227
Engine oil
– adding227
– BMW Maintenance
System229
– capacity247
– checking level225
– intervals between changes,
refer to Service
requirements79
"Engine oil level"226
Engine output, refer to Engine
data244
Engine speed, refer to Engine
data244
Engine starting, refer to
Starting the engine60
"Enter address"135
Entering a destination135
Entering a destination
country135
Entering a house number or
intersection137Entering an intersection136
Entering a street136
"Entertainment"160
Entry lamps, refer to Interior
lamps103
"Equalizer", refer to Tone
control163
Equalizer, refer to Tone
control162
Error messages, refer to
Check Control83
"ESN"170
ESP Electronic Stability
Program, refer to DSC
Dynamic Stability
Control89
Event data recorders230
Exhaust system, refer to Hot
exhaust system125
Exterior mirrors52
– adjusting52
– automatic dimming
feature53
– automatic heating53
– folding in and out52
External audio device114
External audio device, refer to
AUX-In port179
Eyes
– for tow-starting and towing
away239
– for tying down loads128
F
Fader, tone control161
Failure messages, refer to
Check Control83
Failure of an electrical
consumer235
False alarm
– avoiding unintentional
alarm36
– switching off an alarm35
Fastening safety belts, refer to
Safety belts51
Fastest route for
navigation145