2009 BMW 328I CONVERTIBLE sensor

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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.

Controls
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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.

Under the hood
208
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 engine oil as soon as possible, but no
more than 1 US quart/1 liter, refer also to
Adding engine oil on page209.
4Oil level is too high.
Too much oil will harm the engine.
Have the vehicle checked without
delay.<
5The oil level sensor is defective.
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.
Display via iDrive
iDrive, for operating principle refer to page16.1."Vehicle Info"
2."Vehicle status"
3."Engine oil level"
Possible messages
>"Engine oil level OK"
>"Measurement not possible at this time."
>"Measuring engine oil level...":
This can take about 3 minutes if the car is at
a standstill on a level surface and the engine
is running, and about 5 minutes while the
car is moving.
If engine oil was added, it may take up to
30 minutes to obtain an oil level reading.
>"Engine oil level below minimum. Add 1
quart!"
Add engine oil as soon as possible, but no
more than 1 US quart/1 liter, refer also to
Adding engine oil below.
If the oil level is below the minimum value,
add engine oil immediately to avoid engine
damage.
>"Engine oil level too high! Have this
checked."
Too much oil will harm the engine.
Have the vehicle checked without
delay.<

Mobility
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Maintenance
BMW Maintenance System
The BMW Maintenance System supports the
preservation of the traffic and operating safety
of your BMW. The objective is to optimize
efforts with respect to minimal vehicle mainte-
nance costs.
If and when you come to sell your BMW, a com-
prehensive record of servicing will prove a sig-
nificant benefit.
Condition Based Service CBS
Sensors and special algorithms take the differ-
ent driving conditions of your BMW into
account. Condition Based Service uses this to
determine the current and future service
requirements. By letting you define a service
and maintenance regimen that reflects your
own individual requirements, the system builds
the basis for trouble-free driving.
On the Control Display, you can have the
remaining times or distances for selected main-
tenance tasks and any legally prescribed dates
displayed, refer to page73:
>Engine oil
>Brake pads: separately for front and rear
>Brake fluid
>Vehicle check
>Legally mandated inspections depending
on local regulations
Service data in the remote control
Your vehicle continuously stores service-
requirement information in the remote control
while you are driving. Your BMW Service Advi-
sor can read out this data from the remote con-
trol unit, and propose an optimized mainte-
nance approach. Whenever you take your car in
for servicing you should therefore hand your
BMW Service Advisor the remote control unit
that you last used.
Make sure that the date is always set cor-
rectly, refer to page76; otherwise the
effectiveness of Condition Based Service CBS
is not assured.<
Service and Warranty Information
Booklet for US models and Warranty
and Service Guide Booklet for
Canadian models
Please consult your Service and Warranty Infor-
mation Booklet for US models and Warranty
and Service Guide Booklet for Canadian models
for additional information on service require-
ments.
BMW recommends that you have service
and repair operations performed at your
BMW center.
Take the time to ensure that these service pro-
cedures are confirmed by entries in your vehi-
cle's Service and Warranty Information Booklet
for US models and Warranty and Service Guide
Booklet for Canadian models. These entries
verify that your vehicle has received the speci-
fied regular maintenance.<

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Care
Care products
Regular cleaning and care contributes signifi-
cantly to the value retention of your BMW.
BMW recommends cleaning and caring for your
vehicle with products that are approved by
BMW for this purpose.
Your BMW center will be happy to advise you on
the products and services available for cleaning
and caring for your BMW.
Original BMW CareProducts have been
material tested, laboratory checked and
proven in the field, and offer optimal care and
protection for your vehicle.<
Do not use cleaners that contain alcohol
or solvents as these may result in dam-
age.<
Cleaning agents can contain substances
that are dangerous or hazardous to your
health. Therefore, follow the warning and safety
instructions on the packaging. When cleaning
inside the vehicle, always open the doors or
windows of the vehicle. In enclosed areas, pro-
vide for sufficient ventilation. Only use products
designed for cleaning vehicles.<
Exterior care
Washing the vehicle
Especially during the winter months,
ensure that the vehicle is washed more
frequently. Heavy soiling and road salt can lead
to vehicle damage.<
After washing the vehicle, apply the
brakes briefly to dry them, otherwise
water can reduce braking efficiency over the
short term and the brake discs can corrode.<
Automatic car washes
Preference should be given to cloth car washes.Do not use high-pressure car washes,
otherwise water may drip into the vehicle
around the windows.<
Before driving into a car wash, ensure that it is
suitable for your BMW. Check the following:
>Dimensions of your vehicle, refer to
page233
>If necessary: fold in the exterior mirrors,
refer to page49
>Maximum permissible tire width
Preparations before driving into an automatic
car wash:
>Unscrew the rod antenna
*.
>Deactivate the rain sensor
* to prevent unin-
tentional wiping.
>Remove additional attachments, e.g.
spoiler or telephone antennas, if there is a
possibility that they could be damaged.
Automatic transmission
Before driving into an automatic car wash, per-
form the following steps to ensure that the vehi-
cle can roll:
1.Insert the remote control, even with conve-
nient access, into the ignition lock.
2.Move the selector lever to position N.
3.Release the parking brake.
4.Switch off the engine.
5.Leave the remote control in the ignition lock
so that the vehicle can roll.
Steam jets / high-pressure washers
When using steam jets or high-pressure
washers, ensure that you maintain suffi-
cient clearance to the vehicle and do not exceed
a temperature of 1407/606.
Insufficient clearance or excessive pressure or
temperature can lead to component damage or
water penetration. Follow the operating instruc-
tions of the high-pressure washer.<

Care
214 When using high-pressure washers, do
not spray against the sensors and cam-
eras, e.g. of the Park Distance Control or Rear
View Camera, for an extended period and main-
tain a distance of at least 12 in/30 cm.<
Manual car wash
When washing the vehicle by hand, use large
quantities of water and car shampoo if neces-
sary. Clean the vehicle with a sponge or wash-
ing brush, applying light pressure only.
Before cleaning the windshield, deacti-
vate the rain sensor or switch off the igni-
tion to prevent unintentional activation of the
wipers.<
Observe local regulations pertaining to
washing vehicles by hand.<
Headlamps
Do not rub them dry and do not use abrasive or
corrosive cleaning agents.
Remove contamination, such as insects, by
soaking with shampoo or insect remover and
then rinsing with plenty of water.
Thaw ice with a windshield de-icer and do not
use an ice scraper.
Windows
Clean the inside and outside surfaces of the
windows and the mirrors with window cleaner.
Do not clean the mirrors with cleaners
containing quartz.<
Wiper blades
Clean with soapy water and replace regularly to
avoid streaking.
Wax and preservative residue and con-
tamination on the window can lead to
streaking when operating the windshield wip-
ers, leading to premature wear of the wiper
blades and causing the rain sensor to malfunc-
tion.<
Convertible: retractable hardtop
Proceed as you would in a normal car wash.When you open a wet hardtop, water
drops may run into the cargo bay. If nec-
essary, remove items from the cargo bay
beforehand to avoid water stains or soiling.<
Paintwork care
Regular care contributes to value retention and
protects the paintwork against the long-term
effects of damaging substances.
Region-specific environmental influences can
damage the vehicle paintwork. Therefore, it is
important to adapt the frequency and scope of
car care accordingly.
Immediately remove very aggressive sub-
stances, e.g. spilled fuel, oil, grease, tree resin
or bird droppings, to prevent damage to the
paintwork.
Repairing paintwork damage
Immediately repair scratches or similar
damage, such as that caused by stones
hitting the vehicle, where necessary to prevent
rusting.<
BMW recommends having paintwork damage
repaired by a professional paint repair work-
shop according to BMW specifications using
original BMW paint materials.
Preservation
A preservation treatment is necessary when
water no longer beads off of the clean paintwork
surface. Only use products for paintwork pres-
ervation that contain carnauba or synthetic
waxes.
Rubber seals
Treat only with water or rubber care products.
Do not use silicon-containing care prod-
ucts on rubber seals, otherwise noise and
damage could occur.<
Chrome parts
Carefully clean vehicle parts, such as the radia-
tor grill, door handles or window frames, with
copious quantities of water and a shampoo

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additive. For additional treatment, use a chrome
polish.
Light-alloy wheels
For technical reasons, dust is generated during
braking that is deposited on the light-alloy
wheels. Remove the dust regularly using acid-
free rim cleaner.
Do not use aggressive, acidic, strongly
alkaline and abrasive cleaning agents or
steam jets over 1407/606, otherwise dam-
age may occur.<
Outside sensors / cameras
Keep the sensors and cameras on the
outside of the vehicle, e.g. Park Distance
Control, clean and free of ice to ensure that they
remain fully functional.<
Interior care
Upholstery / cloth trim
Vacuum regularly with a vacuum cleaner to
remove superficial dirt.
To treat severe stains, e.g. from beverages, use
a soft sponge or lint-free microfiber cloth in
combination with suitable interior cleaners. Fol-
low the instructions on the packaging.
Clean the upholstery down to the seams
using a sweeping motion. Avoid strong
rubbing.<
Opened Velcro fasteners on pants or
other articles of clothing can damage the
seat covers. Ensure that Velcro fasteners are
closed.<
Leather / leather trim
The leather used by BMW is a high quality
natural product. Slight irregularities in the
leather are a typical characteristic of natural
leather.<
Dust and road grit in the pores and folds of the
leather have an abrasive effect, leading to
increased wear and causing the leather surface
to become brittle prematurely. Therefore, fre-quently clean the leather of dust using a cloth or
vacuum cleaner.
In particular, ensure that light-colored leather is
cleaned regularly as it has a tendency to soil
more easily.
Treat the leather twice a year using a leather
lotion as dirt and grease will gradually attack the
leather's protective layer.
Carpets / cargo bay
You can vacuum the carpets and floor mats or
clean them with interior cleaner if heavily soiled.
The floor mats can be removed for cleaning.
When replacing the mats, ensure that the seat
rails do not extend over the floor mats, as this
may damage the mats.
Lint on the floor mats occurs for technical rea-
sons and can be removed by vacuuming
repeatedly.
Interior plastic parts
>Imitation leather surfaces
>Lamp glasses
>Display pane of instrument cluster
>Matt parts
Clean with water and solvent-free plastic
cleaner if necessary.
Fine wood parts
Clean fine wood trim and fine wood parts with a
damp cloth. Wipe dry with a soft cloth.
Safety belts
Do not clean with cleaning agents as
these may destroy the fabric.<
Interior sensors / cameras
To clean interior sensors and cameras, use a
lint-free cloth moistened with glass cleaner.
Displays
To clean the displays, e.g. of the radio or instru-
ment cluster, use a display cleaning cloth or a
soft, non-abrasive, lint-free cloth.

Everything from A - Z
242
Everything from A - Z
Index
"..." Identifies Control Display
texts used to select
individual functions and
refers you to the page where
these texts can be found.
A
ABS Antilock Brake
System83
ACC, refer to Active cruise
control63
Accident, refer to Sending an
Emergency Request224
Activated-charcoal filter for
automatic climate
control100
Active cruise control63
– indicator lamps66
– malfunction67
– selecting distance65
– sensor66
Active steering89
Adaptive brake light
– brake force display89
Adaptive Head Light94
Additives
– coolant209
Address, entering125,131
Address for navigation
– entering125,131
Adjusting temperature inside
the car, refer to Automatic
climate control98
Adjusting the thigh support43
Adjusting the tone during
audio operation, refer to
Tone control144
Airbags90
– indicator/warning lamp91
– sitting safely42Air conditioning mode
– automatic climate control98
– ventilation100
Air distribution
– automatic98
Air flow rate99
Airing, refer to Ventilation100
Air pressure, refer to Tire
inflation pressure194
Air recirculation, refer to
Recirculated-air mode99
Air supply
– automatic climate control98
– ventilation100
Air vents97
AKI, refer to Fuel
specifications193
Alarm system32
– avoiding unintentional
alarms33
– interior motion sensor33
– switching off an alarm33
– tilt alarm sensor33
Albums of music
collection161
All-season tires, refer to
Winter tires205
All-wheel drive, refer to
xDrive84
AM, waveband147
Ambient air, refer to
Recirculated-air mode99
Antenna for mobile phone170
Antifreeze
– coolant209
– washer fluid61
Antilock Brake System
ABS83
Anti-theft alarm system, refer
to Alarm system32
Anti-theft system27
Approved axle loads, refer to
Weights235Approved gross vehicle
weight, refer to Weights235
Armrest, refer to Center
armrest106
Arrival time, refer to
Computer71
Ashtray
– front108
– rear108
Assistance systems, refer to
Driving stability control
systems83
AUC Automatic recirculated-
air control99
Audio144
– controls144
– switching on/off144
– tone control144
– volume144
Audio device, external106
Automatic
– air distribution98
– air flow rate98
– cruise control61,63
– headlamp control93
Automatic car washes213
Automatic climate control97
– automatic air distribution98
Automatic curb monitor50
Automatic recirculated-air
control AUC99
Automatic Service
Request187
Automatic transmission with
Steptronic57
– interlock57,58
– overriding selector lever
lock59
– shiftlock, refer to Changing
selector lever position58
– sport program58
– towing
226
– tow-starting226