climate control BMW 325Ci CONVERTIBLE 2001 E46 Owner's Manual

11n

Controls and features
Operation, care and maintenance

Lamps:

Side lamps/Low beams93
Instrument panel lighting93
High beams/Parking lamps94
Fog lamps94
Interior lamps94

Controlling the climate
for pleasant driving:

Air conditioner96
Automatic climate control102
Seat heating107

Interior convenience:

Glove compartment107
BMW Universal Transmitter108
Storage facilities110
Cellular phone111
Ashtray, front111
Cigarette lighter112
Ashtray, rear112

Loading and transporting:

Ski bag113
Cargo loading114
Roof-mounted luggage rack for
the hardtop116

Special operating instructions:

Break-in procedures120
Driving notes121
Catalytic converter121
Antilock Brake System
(ABS)122
Disc brakes125
Brake system126
Winter operation127
Power steering129
Cellular phone129
Radio reception129
Hardtop130

Wheels and tires:

Tire inflation pressure132
Tire condition132
Tire replacement133
Tire rotation134
Wheel and tire
combinations135
Winter tires136
Snow chains136
Approved wheel and tire
specifications137

Under the hood:

Hood140
Engine compartment142
Washer fluids144
Washer nozzles144
Engine oil145
Coolant147
Brake fluid148
Vehicle Identification
Number149

Care and maintenance:

The BMW Maintenance
System150
Caring for your vehicle151
Cleaning and care of the
convertible top157
Airbags159
Vehicle storage160

Laws and regulations:

Technical modifications161
California Proposition
65 Warning161
ODB interface socket162

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
31n
IndexDataTechnologyRepairsCar careControlsOverview
Driving:
Steering/Ignition lock69
Starting the engine69
Switching off the engine70
Parking brake71
Manual transmission72
Automatic transmission with
Steptronic73
Turn signal indicator/Headlamp
flasher76
Washer/Wiper system76
Rear window defroster78
Cruise control79
Everything under control:
Odometer81
Tachometer81
Energy Control81
Fuel gauge82
Coolant temperature gauge82
Service Interval Display82
Check Control83
Computer83
Technology for driving comfort
and safety:
Park Distance Control (PDC)87
Automatic Stability Control plus
traction (ASC+T)88
Dynamic Stability Control
(DSC)89
Tire Pressure Control (RDC)91Lamps:
Side lamps/Low beams93
Instrument panel lighting93
High beams/Parking lamps94
Fog lamps94
Interior lamps94
Controlling the climate
for pleasant driving:
Air conditioner96
Automatic climate control102
Seat heating107
Interior convenience:
Glove compartment107
BMW Universal Transmitter108
Storage facilities110
Cellular phone111
Ashtray, front111
Cigarette lighter112
Ashtray rear112
Loading and transporting:
Ski bag113
Cargo loading114
Roof-mounted luggage rack for
hardtop116

40n
Luggage compartment lid Luggage compartmentClosingThe 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, as with all closing procedures.<46cde047
Do not drive with the luggage
compartment lid open, since
exhaust fumes could penetrate the inte-
rior of the vehicle. Should it be abso-
lutely necessary to operate the vehicle
with the luggage compartment lid open:
>Close all windows.
>Increase the air supply for the air
conditioner or automatic climate
control to a high level. Refer to
page 96 or 102.<
Hook in the floor panel1 Press the button (arrow).
2 Grab the handle and pull up.46cde031

78n
Washer/Wiper system Rear window defroster Cleaning headlamps
*
When the vehicle's lighting system is
switched on, the headlamps will also be
cleaned every fifth time cleaning wind-
shield is activated.
Do not use the washers if there
is any danger that the fluid will
freeze on the windshield. If you do so,
your vision could be obscured. Use an
antifreeze agent. Refer to page 144.
Do not use the washers if the reservoir
is empty, as otherwise the washer
pump could be damaged. automatically
* when the ignition key is
in position 2.
The illustration shows the button setup
for vehicles equipped with automatic
climate control. For other layouts, refer
to page 96.To activatePress the button with the convertible
top closed or the hardtop mounted: as
long as the indicator lamp remains on,
the rear window defroster operates at
high output (rapid thaw).
After the indicator lamp goes out, the
defroster continues operating at
reduced power for a limited period
before deactivating automatically. 462us036
To deactivatePress the button if the indicator lamp is
on.

102n
Automatic climate control
*
46cus021

103n
IndexDataTechnologyRepairsCar careControlsOverview
Automatic climate control
*
1 Air onto the windshield and onto the
side windows
2 Air for the upper body area
The side rotary dials open and close
the air supply through an infinitely-
variable range; the levers will
change the direction of the air flow.
The center rotary dial adjusts the
temperature of the air as it flows
out, see page 106
3 Air for the front footwell
There are vent outlets for the foot-
well in the rear as well
4 Recirculated air mode/Automatic
recirculated air control (AUC)105
5 Air supply105
6 Temperature104
7 Automatic air distribution104
8 Individual air distribution104
9 Air grill for interior temperature
sensor Ð please keep clear and
unobstructed
10 Display for temperature and air
supply104
11 Defrost windows and remove
condensation105
12 Air conditioner105
13 Rear window defroster78, 106

104n
Automatic climate control
*
Tips for pleasant drivingUse the automatic system (switch on
AUTO-button 7). Select an interior
temperature that is comfortable for
you Ñ e. g. 72 7 (+22 6). Whenever
the outside temperature is above 41 7
(+5 6), you can also use the air condi-
tioner 12. This will dry the air as well as
preventing condensation on the
window surfaces Ð if there are passen-
gers with damp clothing, for example.
Set the air outlets 2 so that the air flows
past you and is not directed straight at
you. Set the rotary dial between the air
outlets 2 for the upper body to a
medium position, since air that is some-
what cooler promotes driving without
fatigue.
Detailed setting options are described
for you in the following section.
Automatic air distribution
The AUTO program assumes
the adjustment of the air distri-
bution and the air supply for you and in
addition adapts the temperature to
external influences (summer, winter) to
meet preferences you can specify. This
program maintains a comfortable in-car
climate regardless of the season. Select
an interior temperature that is comfort-
able for you Ñ e. g. 72 7 (+22 6). The
temperature selected and AUTO for
the air supply appear in display 10,
refer to the overview on page 102.
Open the air outlets for the upper body
area. Switch on the air conditioner in
warm weather. The maximum cooling
capacity is achieved when you set
rotary dial 3 (refer to page 106) to cold.
Individual air distribution
You can cancel the AUTO
program by selecting specific
distribution patterns to suit your
own individual requirements.
You can direct air to flow onto the
windows , toward the upper body
, and into the footwell .
Temperature
The figures in the display
provide a general indication of
interior temperature. We recommend
72 7 (+22 6) as a comfortable
setting, even if the air conditioner is on.
When you start the vehicle, the system
ensures that the selected temperature
is reached as quickly as possible. It
then maintains this temperature,
regardless of the season.
Set rotary dial 3 (refer to "Draft-free
ventilation" on page 106) to a medium
setting, since air that is somewhat
cooler promotes driving without fatigue.
You can use this setting for mixing air to
make minor comfort modifications.
You can set uncontrolled heater
output up to 90 7 (+32 6). The
air conditioner is at full cooling output
at 60 7 (+16 6).<

105n
IndexDataTechnologyRepairsCar careControlsOverview
Automatic climate control
*
Air supply

By pressing the left or right half
of the button, you can vary the
air supply. By doing this, you switch off
the automatic control of the air supply.
Nevertheless, the automatic air distri-
bution remains unchanged.
When you set the lowest blower speed
by pressing the left half of the button,
all of the displays are canceled: the
blower, heating and air conditioner are
switched off, and the air supply is
stopped. You can reactivate the system
by pressing any button for the auto-
matic climate control.
To defrost the windows and to
remove condensation
This program quickly removes
ice and condensation from the
windshield and side windows.
Air conditioner
The air is cooled and dehumidi-
fied and Ð depending on the
temperature setting Ð rewarmed when
the air conditioner is switched on.
Depending on the weather, the wind-
shield may fog over briefly when the
engine is started.
Use the button to switch the air condi-
tioner off at outside temperatures
below approx. 41 7 (+5 6). This will
help to prevent the windows from
fogging up.
If the windows fog over after switching
the air conditioner off, switch it back
on.
Condensation forms in the air
conditioner system during opera-
tion, that then exits under the vehicle.
Traces of condensed water of this kind
are thus normal.<
Automatic recirculated air control
(AUC)
If there are unpleasant odors or
pollutants in the outside air, you
can temporarily block the air supply
from the outside. The system then
recirculates the air already within the
vehicle. By repeated actuation of the
button, you can select one of three
different operation modes.
>Indicator lamps off: fresh air flows
into the vehicle.
>Left-hand indicator lamp on Ð AUC
mode: the system detects pollutants
in the outside air and responds by
deactivating the outside air supply as
required. The system then recircu-
lates the air already 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-hand indicator lamp on: the
supply of outside air is permanently
blocked. The system recirculates the
air already within the vehicle.
If the windows fog over in the
recirculated air mode, switch this
mode off and increase the air supply as
required.<

106n
Automatic climate control
*
Rear window defroster
When the rear window defroster
is activated, the indicator lamp
comes on. The rear window defroster
switches off automatically. Refer to
page 78.
Draft-free ventilation You can adjust the blower controls for
the upper body area to select the
optimum air flow rates and directions
for your personal requirements:
Use rotary dials 1 to open and close the
air outlets through an infinitely-variable
range. You can adjust the direction of
the air flow with levers 2.
Set the outlets so that the air flows past
you and is not directed straight at you.
Rotary dial 3 allows you mix the air from
the outlets for your upper body by
warming or cooling the air as desired.460de040
Microfilter/Activated-charcoal
filterThe microfilter filters out dust and
pollen from the incoming air. The acti-
vated-charcoal filter helps clean the
incoming outside air of gaseous pollut-
ants. Your BMW center will replace this
combined filter during the regularly
scheduled maintenance. A substantial
reduction in air supply indicates that the
filter must be replaced before normal
maintenance.
For further information on the filter
change, refer to page 180.

133n
IndexDataTechnologyRepairsCar careControlsOverview
To maintain good handling and vehicle
response, use only tires of a single
tread configuration from a single manu-
facturer. BMW tests and approves
wheel/tire combinations, beginning on
page 137.DOT Quality Grades Treadwear
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 (1g) 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 performance.
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
characteristics.< 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
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A
represent higher levels of performance
on the laboratory test wheel than the
minimum required by law.
The temperature grade for this tire
is established for a tire that is
properly inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either separately or
in combination, can cause heat buildup
and possible tire failure.< Uniform Tire Quality Grading Quality grades can be found where
applicable on the tire sidewall between
tread shoulder and maximum section
width. For example:
Tread wear 200 Traction AA
Temperature A
Do not use retreaded tires. Driving
safety may be impaired by their
use. This is due to the possible varia-
tions in casing structures and, in some
cases, to their extreme age, factors that
can lead to a decrease in their
durability.<
Tire replacement