2009 BMW 335I CONVERTIBLE cooling

At a glance
15Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
1Coupe: microphone for voice activation
system
* and for telephone in hands-free
mode
*
Convertible: microphone on steering col-
umn
2SOS: initiating an Emergency Request
call
*224
3Reading lamps96
4Coupe: glass roof, electric
*37
5Interior lamps96
6Passenger airbag status lamp
*91
7Control Display16
8Hazard warning flashers
9Dynamic Traction Control DTC83
10Central locking system30
11Automatic climate control
12CD/DVD drive15213Changing the audio and entertainment
sources
14Selecting AM or FM waveband
15Changing
>Radio station147
>Track152
17Controller16
Can be turned, pressed, or moved in four
directions
18Buttons on the controller16
Selecting menus directly
20Programmable memory keys20
21Switching audio sources on/off and adjust-
ing volume144
22Ejecting CD/DVD152 Air distribution to the
windshield98
Air distribution to the upper body
area98
Air distribution to the footwell98
Automatic air distribution and flow
rate98
Cooling function100
Automatic recirculated-air control
AUC99
Recirculated-air mode99
Maximum cooling98
Residual heat mode99
Air flow rate99
Defrosting windows99
Rear window defroster100
16
Heated seats*47
Park Distance Control PDC
*82
Coupe:
Roller sun blind
*105
Coupe:
Hill Descent Control HDC
*84
19Convertible:
Opening and closing retractable
hardtop38

Controls
27Reference
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
page76
>Date format, refer to page77
>Brightness of Control Display, refer to
page80
>Language on the Control Display, refer
to page80
>Units of measure, refer to page72
>Show visual warning for Park Distance Con-
trol PDC
*, refer to page82
>Light settings:
>Welcome lamps, refer to page93
>Pathway lighting, refer to page94
>Daytime running lamps, refer to page94
>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 page98 ff
>Entertainment:
>Audio volume, refer to page144
>Tone control, refer to page144
>Speed-dependent volume control, refer
to page145
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
>Convertible: glove compartment
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
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
page32.
Operating from inside
By means of the button for central locking, refer
to page30.
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 page39.<
Unlocking
Press the button.
The interior lamps, the courtesy lamps
* and the
welcome lamps come on.
Setting unlocking characteristics
You can set whether only the driver's door or
the entire vehicle is to be unlocked when the
button is pressed for the first time.
iDrive, for operating principle refer to page16.

Controls
97Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Climate
1Airflow directed toward the windshield and
side windows
2Air to the upper body area
Draft-free ventilation100
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 page98.

Climate
98
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 page26.
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.
The current setting is briefly displayed on the
Control Display when a button is pressed.
You can switch the automatic air distribution
back on by pressing the AUTO button. This
automatically switches on the cooling function.
Temperature
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.
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 displayed on the Control Display
when the button is pressed.
Select the intensity of the AUTO program:
>−Low
>−Medium
>−High
Convertible program
The Convertible program is active when the
hardtop is open and the AUTO program is
switched on. In the Convertible program, the

Controls
99Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
automatic air conditioning system is optimized
for driving with the top open. In addition, the air
flow rate is increased as vehicle speed
increases.
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.
The recirculated-air mode is switched on
when you switch off the automatic cli-
mate control. If the air quality deteriorates or the
window fogs over, switch the system back on
and increase the air volume.<
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
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.<
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.

Climate
100
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.
Pressing the AUTO button automatically
switches on the cooling function.
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.
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 approx. 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

Mobility
209Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
>"Measurement inactive. Have this
checked."
Do not add engine oil. You can continue
your journey. Note the newly calculated dis-
tance remaining to the next oil service, refer
to page73. Have the system checked as
soon as possible.
Adding engine oil
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 y our B MW c ente r o r a t
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. For gaso-line engines, 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 0W-40,
0W-30, 5W-40 and 5W-30 SAE
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.<
Comply with the appropriate environ-
mental protection regulations when dis-
posing of coolant additives.<

Reference 245
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Confirmation signals for
locking/unlocking the
vehicle29
Congestion
– refer to Route, bypassing
sections136
Connecting vacuum cleaner,
refer to Connecting
electrical appliances108
Consumption, refer to
Average consumption71
Consumption display
– average consumption71
Control Center, refer to
iDrive16
Control Display, refer to
iDrive16
– adjusting brightness80
– switching on/off19
Controller, refer to iDrive16
Controls and displays10
Control unit, refer to iDrive16
Convenient access34
– replacing the battery35
Convenient loading in
convertible28
Convenient operation
– glass roof28
– glass roof with convenient
access34
– retractable hardtop28
– windows28
– windows with convenient
access34
Convertible
– bag holder110
– convenient loading28
– enlarging cargo bay109
– folding down rear
backrest110
– retractable hardtop38
– rollover protection
system92
– securing cargo120
– stowing cargo119
Coolant209
– checking level210
Coolant temperature70
Cooling, maximum98Cooling fluid, refer to
Coolant209
Cooling system, refer to
Coolant209
Copyright2
Corner-illuminating lamps
– replacing bulbs219
Corner-illuminating lamps,
refer to Adaptive Head
Light94
Cornering lamps, refer to
Adaptive Head Light94
Correct tires204
Country codes DVD154
Courtesy lamps, refer to
Interior lamps96
Criteria for route135
Cross-hairs in navigation130
Cruise control61
– active63
– malfunction63
Cruising range70
Cup holders107
Curb weight, refer to
Weights235
Current playback of music
collection160
Current position
– displaying141
Customer Relations187
D
Dashboard, refer to
Cockpit10
Dashboard, refer to
Instrument cluster12
Dashboard lighting, refer to
Instrument lighting95
Data, technical232
– dimensions233
– engine232
– weights235
Data transfer188
Date
– date format77
– setting76
Daytime running lamps94
– replacing bulbs219DBC Dynamic Brake
Control83
Deactivating front passenger
airbags90
Deadlocking, refer to
Locking28
Defect
– door lock30
– fuel filler door192
– glass roof38
Destination, entering by town/
city name125
Destination address
– entering125,131
Destination for navigation
– entering by voice131
– entering via map130
– entry125
– home address128
– manual entry125
Destination guidance135
– bypassing a route
section136
– changing specified
route135
– continuing135
– starting135
– voice instructions136
– volume of voice
instructions137
Digital clock69
Digital compass104
Digital radio, refer to High
Definition Radio148
Dimensions233
Directional indicators, refer to
Turn signals59
Direction instructions, refer to
Voice instructions136
Directory for navigation, refer
to Address book127
Displacement, refer to Engine
data232
Display, refer to iDrive
controls16
"Display current location"141
Display lighting, refer to
Instrument lighting95