engine BMW 323Ci CONVERTIBLE 2000 E46 Workshop Manual

173n
IndexDataTechnologyRepairsCar careControlsOverview
Deceleration sensors continuously
monitor the acceleration forces acting
upon the vehicle. If, as the result of a
frontal collision, a deceleration is
reached at which the protection of the
safety belts alone is no longer ade-
quate, the gas generators of the driver
and passenger-front airbags are ignited.
However, the passenger-side airbag is
only triggered if an additional sensor
has recognized that the passenger seat
is occupied.
In the event of a side collision, the
side airbags in the front are triggered
if necessary. 390de012
The airbags located under the marked
covers inflate and unfold in a matter of
a few milliseconds. In this process, they
tear through the designed separation
points of the upholstered covers or
press them out.
Because the inflation process must be
virtually instantaneous, it is necessarily
accompanied by a certain amount of
ignition and inflation noise. The gas
required to inflate the airbags is not
dangerous, and the smoke associated
with it dissipates.
The entire process is completed within
fractions of a second.Highly sensitive sensors monitor the
wheel speeds, steering angle, lateral
acceleration, brake pressure and the
movement of the vehicle around its
vertical axis.
If differences in the wheel speeds occur,
the system counteracts the danger of
wheelspin by reducing torque. If neces-
sary, the system also responds with
additional brake applications at the
rear wheels.
In addition, DSC permanently monitors
the vehicle's current operating condition
and compares it with an ideal condition
that is calculated from the sensor sig-
nals. If deviations from this occur (un-
dersteering or oversteering, for in-
stance), DSC can stabilize the vehicle in
fractions of a second by reducing engine
output and with the assistance of brak-
ing intervention at individual wheels.
As a result, most skids can be preven-
ted from their very onset.
You may need some time to become
accustomed to this system intervention.
However, it provides optimum drive
force and vehicle stability.
The braking intervention may be
accompanied by sounds specific to
the system.
Airbags DSC

178n
Self-diagnostics All of the important electrical and elec-
tronic systems in the vehicle are tested
regularly and automatically; the driver
does not have to perform any extra
operations or adjustments.
The indicator lamps come on briefly
when the ignition is switched on.
While you are driving, the functional
status of the actuator motors (for the
windshield wipers, power windows,
seats, etc.) is constantly analyzed by
current measurements in their relays. 46cde052
In the same manner, the electrical re-
sistance of the airbag ignition genera-
tors and all of the remaining airbag
components is measured at all times.
Any fault in this system would be de-
tected immediately by a current fluctua-
tion that would necessarily accompany
it. The fault would be indicated immedi-
ately by the airbag warning lamp.
Even after you shut off the engine, the
overall functional status of your vehicle
is being monitored. For example, all of
the flaps for the heating and ventilation
system travel to the nearest limit posi-
tion. This action ensures that in any
case, the defrosting function will remain
intact, even if a malfunction in the auto-
matic climate control should occur dur-
ing the night while the vehicle is parked.
A calibration cycle runs every tenth time
the engine is shut off. During this cycle,
the actuator motors of all the heating
and ventilation flaps travel to their limit
stops in both directions. The limit posi-
tions and the return travel paths are
checked in this manner in order to en-
sure that appropriate adjustments for
the operating elements can be made at
any time.The sounds the automatic climate con-
trol makes as it carries out its self-diag-
nostics are noticeable because of the
noise that the ventilation flaps make af-
ter the ignition has been switched off.
All of the other self-diagnostics func-
tions operate silently in the back-
ground.
Any possible defects detected during
these self-diagnostics can be read out
by your BMW center and quickly cor-
rected during the vehicle's next regu-
larly scheduled maintenance.

Overview
Controls and features
Operation, care
and maintenance
Technical data
Index Advanced technology
181n
IndexDataTechnologyRepairsCar careControlsOverview
Engine data182
Dimensions183
Weights184
Capacities185
Electrical system186
Drive belts186
Data
Owner service procedures

182n
BMW 323Ci
Displacement
Number of cylinderscu. in. (cmm) 152.2 (2,494)
6
Maximum output
at engine speedhp (kW)
rpm170 (127)
5,500
Maximum torque
at engine speedlb.ft (Nm)
rpm181 (245)
3,500
Compression ratioe
10.5
Stroke
Borein (mm)
in (mm)2.95 (75)
3.31 (84)
Fuel-injection system Digital electronic engine-management system
Engine data

185n
IndexDataTechnologyRepairsCar careControlsOverview
Capacities
Notes
Fuel tank
reserve gal. (liters)
gal. (liters)approx. 16.6 (approx. 63)
approx. 2.1 (approx. 8)Fuel specification: page 27
Windshield washer system/
Headlamp washer system
*
quarts (liters) approx. 5.6 (approx. 5.3)For details: page 132
Cooling system including heater circuit quarts (liters) approx. 8.9 (approx. 8.4) For details: page 135
Engine oil filter change quarts (liters) approx. 6.9 (approx. 6.5) BMW High Performance
Synthetic Oil
For further information, refer to
page 134
Manual and automatic
* transmission and
differential– Lifetime fluid, no fluid change
required

Everything from A to ZAABS (Antilock Brake
System)22, 114
Accessories6
Activated charcoal filter98
Adaptive Transmission
Control (ATC)74, 172
Adding engine oil133
Adding washer
fluid132, 185
Adjust seats53
Adjust the temperature96
Adjusting the steering
wheel58
Air distribution96
Air outlets94
Air pressure123
Air supply97
Airbags21, 63, 146, 173
sitting properly with64
Alarm system42
Antenna120
Antenna, Diversity174
Antifreeze135
Antifreeze, radiator118
Antilock Brake System
(ABS)22, 114
Anti-theft alarm system42
Aquaplaning113, 123
Armrest102
Ashtray
front103
rear104Assisted rear entry56
ATC (Adaptive Transmission
Control)74, 172
Attaching vehicle vacuum
cleaner104
AUC (Automatic recirculated
air control)97
Automatic car washes139
Automatic climate
control94
remove window
condensation97
Automatic cruise control80
Automatic dimming, interior
rearview mirror59
Automatic recirculated air
control (AUC)97
Automatic transmission with
Steptronic22, 74
Automatic windshield
washer78
Average consumption86
Average speed86
Avoiding unwanted
alarm43
Axle loads184
BBackrest
release56
Backup lamps73
bulb replacement155Battery162, 186
capacity186
charge164
charge current20
drained168
removal and
installation164
Belts61
Blower97
BMW High Performance
Synthetic Oils134
BMW Sports Seat55
BMW Universal
Transmitter100
Bore182
Brake fluid136
Brake hydraulic system20
Brake lamps
bulb replacement155
Brake pads22
Brakes116
malfunctions117
Break-in procedure112
Breaking in the vehicle112
Bulb replacement152
CCapacities185
Car Memory60
Car radio120
refer also to the separate
Owner's ManualCar radio
reception120, 174
Car wash139
Care
convertible top144
exterior140
interior141
Care of upholstery142
Cargo loading106
Caring for the vehicle
finish140
Caring for wool velour142
Cassette operation, refer to
the Radio Owner's Manual
Catalytic converter113
CBC (Cornering Brake
Control)21, 115
CD operation, refer to the
Radio Owner's Manual
Cellular phone103, 120
refer also to the separate
Owner's Manual
Center armrest102
Center brake lamp157
Central locking system34
key38
Changing tires159
Check Control84
Child restraint
systems61, 66, 67
installation67
Child's seat61, 66
Everything from A to Z

Everything from A to Z
191n
IndexDataTechnologyRepairsCar careControlsOverview
Cigarette lighter104
Clock84
Cockpit16
Code, refer to the Radio
Owner's Manual
Coin box, cup holder103
Combination switch77
Compression182
Computer85
Configure settings60
Consumption86
Consumption display83
Convertible top
care144
electrical defect166
Convertible top
compartment panel41
Convertible top operation,
fully automatic convertible
top49
Coolant118, 135, 185
antifreeze118
Coolant temperature
gauge83
Cooling system185
Cornering Brake Control
(CBC)21, 115
Cruise control80
Cruising range86
Curb weight184
Current check indicator20
DDash lighting91
Dashboard16
Data
dimensions183
engine182
technical182
weights184
Daytime-driving lamp
switch91
Defrost setting97
Defrosting the
windows97, 98
Digital clock84
Dimensions183
Dipstick, engine oil133
Disc brakes116
Displacement182
Display lighting91
Displays18
Distance warning87
Diversity Antenna174
Door key32
Door locks, care118
Doors
emergency actuation34
remote control35
unlocking and locking34
Drive belts186
Driving hints113
Driving in winter118Driving lamps91
DSC (Dynamic Stability
Control)22, 88, 173
EElectric power windows44
Electrical accessories,
failure165
Electrical system186
Electronic vehicle
immobilizer33
Elements of operation16
Emergency actuation
doors34
fuel filler door165
fully automatic convertible
top166
Emergency closure166
Energy Control82
Engine compartment130
Engine coolant135, 185
Engine data182
Engine oil
capacity185
consumption133
pressure20
quality134
specifications134
viscosity134
Engine oil level21
check133Engine speed182
Engine, starting70
Entry to the rear56
Exterior mirrors58
Eyes169
FFailure messages84
Fault displays84
Fault, ABS115
Filler cap cover26
Filling capacities185
Filling the washer
reservoir185
First-aid kit25
Flashlight99
Flat tire123, 159
Fog lamps92
bulb replacement155
"Follow-Me-Home"
lamps91
Footbrake116
Footwell lamps92
bulb replacement158
Front seat adjustment53
Frost protection,
radiator135
Fuel27
gauge83
preparation182
quality27
Fuel consumption86

Everything from A to ZService and Warranty
Information Booklet (US
models)138
Service Interval
Display83, 138
Shiftlock74
Side airbags63
Side lamps91
bulb replacement154
Sitting properly53
using airbags64
Ski bag105
Skid control119
Slippery roads118
Snow chains118, 128
Socket104
Space-saver spare tire159
Spare key32
Spare tire159
Spark plugs186
Speaker103
Speedometer18
Starting70
Starting problems113, 168
Steel wheels128
Steering120
Steering wheel lock70
Steptronic74
Stopping the vehicle71
Storage compartments102
Storing your vehicle147
Stroke182
Summer tires126Switching off the engine71
Symbols4, 163
Synthetic oils134
TTachometer82
Tail lamps155
bulb replacement155
Tank capacity185
Tank cover
unlock in case of electrical
fault165
Technical data182
Technical
modifications6, 148
Telephone
refer to the separate
Owner's Manual
Telephone hookup103
Temperature display
outside temperature85
Temperature gauge
engine coolant83
Temperature layering98
Tether anchorage for child
retsraint66
Third brake lamp157
Tilt alarm37
remote control37
Tilt sensor alarm system43
Tire codes126
Tire damages123Tire inflation
pressure27, 123
Tire Pressure Control
(RDC)89, 177
Tire pressure
monitoring89, 177
Tire pressure, checking27
Tire replacement124, 125
Tire specifications128
Tire tread123
Tools152
Torque182
Tow fittings169
Towing169
Track183
Traction Control System
refer to DSC88
Transmission73
Tread depth, tires123
Trip odometer82
Trunk39
locking separately39
Trunk lid, refer to luggage
compartment lid39
Turn signal indicator23, 77
Turn signals
bulb replacement154
Turning radius183
Two-way radios120
UUniform Tire Quality
Grading124Universal Transmitter100
Used batteries164
VVehicle
battery162, 186
identification137
immobilizer33
painting140
starting70
storage147
weight184
Vehicle care
exterior140
interior141
Vehicle Identification
Number (VIN)137
Ventilation94
draft-free98
Vinyl upholstery, care142
Visors59WWarning lamp "Please fasten
safety belts"21
Warning lamps20
Warning messages84
Warranty and Service Guide
(Canadian models)138
Washer reservoir, filling132
Washing your car139
Water on roadways
deep water113

Everything from A to Z
195n
IndexDataTechnologyRepairsCar careControlsOverview
Waxing, paintwork141
Weights184
Wheel lug wrench159
Wheel rims126
Wheelbase183
Wheels and tires126, 128
Width183
Wind deflector51
Windows
one-touch operation34
Windshield washer nozzle
adjustment132
Windshield washer reservoir,
filling132, 185
Windshield wiper77
blade replacement152
Winter operation118
Winter tires126, 127
Wiper system77
Work in the engine
compartment129XXenon lamp153, 179

Owner service proceduresAAdding brake fluid136
Adding engine coolant136
Adding engine oil133
Avoiding a false alarm43
Avoiding unwanted
alarm43BBackup lamps
bulb replacement155
Battery
add distilled water163
charging164
Brake lamps
bulb replacement155
Brakes, brake faults117CChanging the tire159
Check Control84
Checking engine oil
level133
Checking tire pressure27DDefrosting the windows97
Difficult steering120
Doors
emergency actuation34
EElectrical accessories,
failure165
Electrical failure
fuel filler door165
Emergency actuation
doors34
fully automatic convertible
top166
Emergency release
fuel filler door165
Engine oil
add133
quality134
specifications134
viscosity134
Eyes169FFailure messages84
Fault displays84
First-aid kit25
Flat tire159
Fog lamps
bulb replacement155
Footwell lamps
bulb replacement158
Fuel filler door
manual release after
electrical fault165
Fuses, replacing165
GGlove compartment lamp
bulb replacement158HHazard warning flashers25
Hazard warning triangle25
Headlamp cover, care153
High beams
bulb replacement153IIndicator lamps20
Inflation pressure27, 123
Interior lights
bulb replacement157JJack159LLicense plate lamp
bulb replacement157
Low beams
bulb replacement153
Luggage compartment
emergency release39
Luggage compartment
lamps
bulb replacement158
Luggage compartment lid
emergency release39
MMaintenance138
Malfunction displays84OOil
quality134
specifications134
viscosity134
Onboard tool kit152PParking lamps
bulb replacement154
Pressure, tires27RReleasing the hood129
Removing condensation
from the windows97
Replace windshield wiper
blades152
Replacement key32
Replacing lamp bulbs152
Return used batteries164
Rollover protection system
lowering68SSpace-saver spare tire159
Spare key32
Spare tire159
Owner service procedures