climate control BMW 325i SEDAN 2002 E46 Owner's Manual

5n

OverviewControlsMaintenanceRepairsDataIndex

Controls and features
Operation, maintenance

Hill Descent Control (HDC)77
Tire Pressure Monitor (RDC)78
Flat Tire Monitor80

Lamps:

Parking lamps/Low beams82
Instrument lighting83
High beams/Standing lamps83
Fog lamps83
Interior lamps84

Controlling the climate for
pleasant driving:

Air conditioning85
Automatic climate control88
Roller sun blind91

Interior conveniences:

Premium sound system91
Glove compartment92
Storage compartments92
Cellular phone94
Ashtray, front95
Ashtray, rear95

Loading and transporting:

Through-loading system96
Ski bag97
Cargo loading99
Roof-mounted luggage rack100

Special operating instructions:

Break-in procedures104
Driving notes105
Antilock Brake System
(ABS)105
Brake system106

Wheels and tires:

Tire inflation pressures107
Tire condition107
Tire replacement108
Wheel and tire
combinations110
Winter tires111

In the engine compartment:

Hood112
Engine compartment
essentials113
Washer fluids114
Engine oil115
Coolant117
Brake fluid118

Maintenance:

The BMW Maintenance
System119

Laws and regulations:

Technical modifications120
California Proposition
65 Warning120
OBD interface socket121

34n
Luggage compartment lidOpening from the inside
*
If the luggage compartment lid has not
been locked separately, you can open it
with this button in the footwell on the
driver's side when the vehicle is
stationary.
To closeThe handle recesses in the interior trim
panel of the luggage compartment lid
(arrows) make it easier to pull the lid
down.
To avoid injuries, be sure that the
travel path of the luggage
compartment lid is clear when it is
closed, following the same precautions
as with all closing procedures.<
Operate the vehicle only when the
luggage compartment lid is
closed. Otherwise, exhaust fumes
could penetrate the interior of the
vehicle. Should it be absolutely neces-
sary to operate the vehicle with the
luggage compartment lid open:
>Close all windows. Shut the sliding/
tilt sunroof
>Sharply increase the air supply for the
air conditioning or automatic climate
control. Refer to page 85 or 88.<

88n
Automatic climate control
*
1 Air onto the windshield and onto the
side windows
2 Air for the upper body area90
3 Air for the footwell
4 Recirculated-air mode/Automatic
recirculated-air control (AUC)905 Air supply89
6 Temperature89
7 Automatic air distribution89
8 Individual air distribution89
9 Interior temperature sensor Ð please
keep clear and unobstructed10 Display for temperature and air
supply89
11 To defrost windows and remove
condensation 89
12 Air conditioning89
13 Rear window defroster90

89n
OverviewControlsMaintenanceRepairsDataIndex
Automatic climate control
*
Tips for pleasant drivingUse the automatic system Ð switch on
with AUTO button 7. Select the desired
interior temperature.
Detailed setting options are described
for you in the following section.Automatic air distribution
The AUTO program adjusts the
air distribution and the air
supply for you and Ð in addition to that Ð
adapts the temperature to external
influences (summer, winter) to meet
preferences you can specify.
Individual air distribution
You can cancel the AUTO
program by selecting specific
distribution patterns to suit your
own individual requirements.
While the AUTO program is then deacti-
vated, the automatic airflow control
remains in operation. The system
directs air to the windows , the upper
body and into the footwells . You
can reactivate the automatic air distri-
bution mode by selecting the AUTO
button.
Temperature
The interior temperature that
appears in the display panel is a
general figure intended for reference
purposes. We recommend 72 7
(+22 6) as a comfortable setting, even
if the air conditioning is on. When you
start the vehicle, the system ensures
that the selected temperature is
achieved as quickly as possible. It then
maintains this temperature, regardless
of the season.
Air supply
By pressing the left or right half
of the button, you can vary the
air supply. This deactivates the auto-
matic control of the air supply, AUTO
disappears from the display panel.
Nevertheless, the automatic air distri-
bution remains unchanged. You can
reactivate the automatic air distribution
mode by selecting the AUTO button.
When the lowest blower speed is set
and you press the left half of the button,
all of the displays are canceled: the
blower, heating and air conditioning are
switched off. The outside air supply is
blocked. You can reactivate the system
by pressing any button for the auto-
matic climate control.
To defrost windows and remove
condensation
This program quickly removes
ice and condensation from the
windshield and the side windows.
Air conditioning
The air is cooled and dehumidi-
fied and Ð depending on the
temperature setting Ð rewarmed.
Depending on the weather, the wind-
shield may fog over briefly when the
engine is started. Switching on the air
conditioning will reduce condensation
forming on the windows.
Condensation forms during opera-
tion of the air conditioning system,
which then exits under the vehicle.
Traces of condensed water of this kind
are thus normal.<

90n
Automatic climate control
*
Automatic recirculated-air control
(AUC)
You can respond to unpleasant
external odors by temporarily
stopping the flow of outside air. The
system then recirculates the air
currently within the vehicle.
Press the button repeatedly to select
one of three different operating modes.
>Indicator lamps off: outside airflow is
on
>Left indicator lamp on Ð AUC mode:
the system recognizes pollutants in
the outside air and blocks the flow of
air when necessary. The system then
recirculates the air currently within the
vehicle. Depending on the air quality,
the automatic system then switches
back and forth between outside air
supply and recirculation of the air
within the vehicle
>Right indicator lamp on: the flow of
external air into the vehicle is perma-
nently blocked. The system then
recirculates the air currently within
the vehicle.
If the windows fog over in the
recirculated-air mode, switch it off
and increase the air supply as
required.<
Rear window defroster
When the rear window defroster
is activated, the indicator lamp
comes on. The rear window defroster
switches off automatically.
The rear window defroster auto-
matically assumes operation
within 5 minutes after the engine is
started at outside temperatures below
approx. 39 7 (+4 6).<
Draft-free ventilationYou can adjust the blower controls for
the upper body area to select the
optimum airflow rates and directions for
your personal requirements:
1 Rotary dials for infinitely-variable
opening and closing of the vent
outlets
2 Selectors levers for airflow direction
3 Rotary dial 3 allows you to control the
temperature of the airflow from these
outlets as desired.

91n
OverviewControlsMaintenanceRepairsDataIndex
Automatic climate control
*Roller sun blind
*
Premium sound system
*
Microfilter/activated-charcoal
filterThe built-in microfilter removes dust
and pollen from the incoming air. The
activated-charcoal filter provides addi-
tional protection by filtering gaseous
pollutants from the outside air. Your
BMW center replaces this combined
filter as a standard part of your sched-
uled maintenance. A substantial reduc-
tion in airflow indicates that the filter
needs to be replaced before scheduled
maintenance.
To activate, press the button briefly
with ignition key in position 1 or 2.
The illustration depicts the arrangement
of the buttons if the vehicle is fully
equipped. The arrangement may vary,
depending on the equipment actually
installed.
Harman Kardon premium sound
systemPress the button to activate and deacti-
vate the acoustic enhancement.
The system creates the acoustic
impression of a much larger passenger
compartment accompanied by
improved stereophonic sound at all
seating positions.
The system responds to poor reception
conditions by repeatedly alternating
between the stereo and monophonic
modes. You should then switch the
system off.

108n
Tire condition Tire replacementTire damage (up to and including
sudden and complete air loss) can
endanger the lives of both the vehicle
occupants and other road users. response, use only tires of a single
tread configuration from a single manu-
facturer.
DOT Quality GradesTread wear
Traction AA A B C
Temperature A B C
All passenger vehicle tires must
conform to Federal Safety
Requirements in addition to these
grades.< Tread wearThe tread wear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.
For example, a tire graded 150 would
wear one and one-half (1 g) times as
well on the government course as a tire
graded 100. The relative performance
of tires depends upon the actual condi-
tions of their use, however, and may
depart significantly from the norm due
to variations in driving habits, service
practices and differences in road char-
acteristics and climate.
TractionThe traction grades, from highest to
lowest, are AA, A, B, and C.
Those grades represent the tire's ability
to stop on wet pavement as measured
under controlled conditions on speci-
fied government test surfaces of
asphalt and concrete. A tire marked C
may have poor traction.
The traction grade assigned to
this tire is based on straight-
ahead braking traction tests, and does
not include acceleration, cornering,
hydroplaning, or peak traction charac-
teristics.< TemperatureThe temperature grades are A (the
highest), B, and C, representing the
tire's resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause
the material of the tire to degenerate
and reduce tire life, and excessive
temperature can lead to sudden tire
failure. The grade C corresponds to a
level of performance which all
passenger vehicle tires must meet

Everything from A to ZA
ABS (Antilock Brake
System)19, 105
Accessories10
Activated-charcoal filter91
Adaptive Transmission
Control (ATC)60
ADB (Automatic Differential
Brake)73
Adding
brake fluid118
coolant117
engine oil115
washer fluid114
Adjusting
head restraints44
lumbar support43
manual seats42
mirrors48
power seat43
steering wheel47
thigh support42
Air conditioning85
temperature settings86
Air distribution86, 89
Air nozzles85 Air outlets,
ventilation85, 88
Air supply86, 89
Airbags18, 49
sitting correctly41
Alarm system36
Antifreeze117
Antilock Brake System
(ABS)19, 105
Anti-theft system36
Aquaplaning104, 105
Armrest92
ASC+T (Automatic Stability
Control plus Traction)72
Ashtray
front95
rear95
ATC (Adaptive Transmission
Control)60
Attach vehicle vacuum
cleaner95
AUC (Automatic recircu-
lated-air control)90
Automatic climate
control88
temperature settings89
Automatic cruise control64
Automatic curb monitor47 Automatic Differential Brake
(ADB)73
Automatic headlight
control82
Automatic recirculated-air
control (AUC)90
Automatic Stability Control
plus Traction (ASC+T)72
Automatic transmission59
Automatic transmission with
Steptronic18, 59
Automatic-dimming feature,
mirrors49
Average consumption70
Average speed70
Axle loads142
B
Backrest, adjusting42
Backup lamps58
bulb replacement127
Battery133
care133
charge current
indicator17
charging133
Belts, safety45
Beverage holder93 Blower86, 89
BMW High Performance
Synthetic Oil116
BMW Maintenance
System119
BMW sports seat
electrical adjustment43
manual adjustment42
Bore140
Bottle holder, refer to
beverage holder93
Brake fluid118
add118
warning lamp17
Brake lamps
bulb replacement127
Brake system104, 106
brake fluid118
brake fluid level106
brake pads106
brake pads, indicator
lamp19
disc brakes106
Break-in procedure104
Bulbs and lamps,
replacement124

A-Z

Everything from A to Z
151n
OverviewControlsMaintenanceRepairsDataIndex
Sliding/tilt sunroof39
electrical malfunction40
manual operation40
Socket95
Sound system91
Space-saver spare
tire25, 132
Spare tire129
Speedometer15
Sports seat
electrical adjustment43
manual adjustment42
Standing lamps83
Starting the engine56
Steering wheel47
Steering wheel lock56
Stopping the vehicle57
Storage compartments92
Storing heavy loads99
Stroke140
Sun blind cover91
Switching off the engine57
Symbols used in this
manual8
Synthetic oils116
T
Tachometer66
Tail lamps
bulb replacement127
Tank capacity143
Technical data140
Technical
modifications10, 120
Telephone preparation94
Temperature display
outside temperature69
Temperature gauge
engine coolant67
Temperature
layering87, 90
Temperature settings
air conditioning86
automatic climate
control89
Thigh support
adjustment42
Third brake light128
Through-loading system96
Tilt alarm sensor30
avoiding unintentional
alarms37
deactivate by remote
control30 Tilt function, passenger-side
mirror47
Tire change129
Tire condition107
Tire inflation
pressures24, 107
monitoring78
table25
Tire Pressure Monitor
(RDC)78, 109, 132
warning lamp17
Tire Quality Grading109
Tire replacement108
Tire tread107
Tool kit124
Torque140
Tow fittings135
Towing the vehicle135
Track141
Transmission58
Transmitter keys28
Transporting children
safely52
Tread depth, tires107
Tread wear, tires107
Trip odometer66
Trunk lid, refer to luggage
compartment lid33 Trunk, refer to luggage
compartment35
Turn signal
indicators20, 61
bulb replacement126
Turning radius141
U
Uniform Tire Quality
Grading109 V
Vehicle Memory55
Vehicle weight142
Vehicle, starting56
Ventilation85, 88
draft-free87, 90 W

Warning lamp "Fasten safety
belts"18
Warning lamps17
Warning messages68
Warning triangle22
Warranty and Service Guide
Booklet (Canadian
models)119