dsc BMW 330Ci CONVERTIBLE 2001 E46 User Guide

124n
Antilock Brake System (ABS)Dynamic Brake Control (DBC)*DBC is included in the DSC, refer to
information beginning on page 89.
If you step on the brake rapidly, this
system automatically produces
maximum braking force boost and thus
helps to achieve the shortest possible
braking distance during "panic stops."
All of the benefits of the ABS system
are exploited under these circum-
stances.
Do not reduce the pressure on the
brake pedal for the duration of the
brake application. When the brake
pedal is released, the DBC is deacti-
vated.
In the event of a malfunction,
the brake warning lamp lights up
yellow. Normal braking effi-
ciency and ABS are still fully available.
Have the system checked and repaired
at your BMW center as soon as
possible.
Please observe the section "Infor-
mation for your safety" concerning
the ABS system, which also applies to
the DSC system.<

127n
IndexDataTechnologyRepairsCar careControlsOverview
Winter operationThe onset of winter is often accompa-
nied by rapid changes in weather.
Adaptations in driving style should be
accompanied by preparations on the
vehicle itself to ensure that your
progress through the winter remains
safe and trouble-free.CoolantBe sure that the coolant mixture
contains the year-round ratio of 50:50
water and extended-duty antifreeze/
corrosion protection. This mixture
provides protection against freezing
down to approx. Ð34 7 (Ð37 6).
Replace the coolant every four years.LocksBMW door lock deicer can be used to
free them if frozen. This deicer also
contains lubricant.
After using the deicer, we recommend
you treat the door lock with BMW lock
cylinder lubricant.
Rubber seals and components To prevent the weather-stripping from
freezing, apply a spray-on rubber treat-
ment or silicone spray to the door, hood
and luggage compartment lid seals.
A full range of car care products is
available from your BMW center. *
BMW snow chains can be mounted on
both summer and winter tires. Mount
them in pairs on the rear wheels only
and comply with the manufacturer's
safety precautions. Do not exceed a
maximum speed of 30 mph (50 km/h).
In this rare situation, it may be effective
to deactivate the ASC+T/DSC for a
brief period of time. Refer to page 88.
Starting offWhen starting up from a full stop in
deep snow or when "rocking" the
vehicle to free it, it may be effective to
deactivate the ASC+T/DSC system for
a brief period of time. Refer to page 88.Driving on low-traction road
surfacesUse smooth, gentle pressure to control
the accelerator pedal. Avoid excessive
engine speeds and shift to the next
higher gear at an early point. On down-
hill grades or slopes, shift down to the
next lower gear at an early point. Main-
tain an adequate distance between
yourself and the vehicle ahead.

135n
IndexDataTechnologyRepairsCar careControlsOverview
Wheel and tire combinations The right choice Use only BMW-approved tires, begin-
ning on page 137.
Due to the high speeds this vehicle can
reach, the use of specific brands,
specifications and sizes is mandatory.
Consult any BMW center for details.
Comply with local/national regulations.
The correct wheel/tire combina-
tion has an effect on the different
systems such as ABS, ATC, ASC+T/
DSC
and ADB/DBC whose functioning
would be otherwise impaired if the
incorrect wheel/tire combinations were
used.
For this reason, use only tires of the
same manufacture and tread configura-
tion. In the event of a flat tire, for
example, remount the approved wheel/
tire combination as soon as possible.<
Codes on the tires and wheels The tire codes will aid you in selecting
the correct tire.
The codes on radial tires:
The speed rating indicates the approved
maximum speed for the tire.
Summer tires:
S = up to112 mph (180 km/h)
T = up to 118 mph (190 km/h)
H = up to 130 mph (210 km/h)
V = up to 150 mph (240 km/h)
W = up to 167 mph (270 km/h)
Y = up to 187 mph (300 km/h)
ZR = over 150 mph (240 km/h) Example:
Nominal width
in mm
Aspect ratio in X
Radial tire ID code
Rim diameter in inches
Load rating
(not on ZR tires)
Speed rating
(before R on ZR tires)
225/50 R
1692W
Winter tires and all-season tires:
Q M+S = up to 100 mph (160 km/h)
T M+S = up to 118 mph (190 km/h)
H M+S = up to 130 mph (210 km/h)
Codes stamped on light-alloy wheels:
Protect tire valve from dirt by using
screw-on valve stem caps. Dirt in the
valves frequently leads to slow leaks. Example:
Rim width
in inches
Code letter for
flange type
Symbol for full-drop
center rim
Rim diameter in inches
Hump on the 2 rim shoulders
7 x 16 H 2
J

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
187n
IndexDataTechnologyRepairsCar careControlsOverview
Adaptive Transmission Control
(ATC)188
Airbags189
Automatic Stability Control plus
Traction (ASC+T)/Dynamic
Stability Control (DSC)189
Radio reception190
Safety belt tensioner190
Interior rearview mirror
with automatic dimming
feature191
Rain sensor191
Tire Pressure Control (RDC)192
Self-diagnostics192
Rollover protection system193
Xenon lamps193
Technol-

189n
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
adequate, 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 and/or rear
* 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 accompa-
nied by a certain amount of ignition and
inflation noise, which will be drowned
out by the noise from the accident
itself. The gas required to inflate the
airbags is not dangerous, and the
associated smoke then dissipates.
The entire process is completed within
fractions of a second.Highly sensitive sensors monitor the
number of revolutions of the wheels.
When equipped with DSC, they also
monitor steering angle, lateral accelera-
tion, brake pressure and the movement
of the vehicle around its vertical axis.
If differences in the wheel speeds
occur, ASC+T counteracts the danger
of wheelspin by reducing engine
torque; if necessary, ASC+T will also
respond by applying the brakes to the
rear wheels.
In addition, DSC permanently monitors
the vehicle's current operating condi-
tion and compares it with an ideal
condition that is calculated from the
sensor's signals. If deviations from this
occur (understeering or oversteering,
for instance), DSC can stabilize the
vehicle in fractions of a second by
reducing engine output and with the
assistance of braking intervention at
individual wheels. Dangerous skids are
thus prevented before they can even
start, and all of this is possible, of
course, only within physically possible
limits. You may need some time to
become accustomed to the system's
intervention. However, it provides
optimum drive force and vehicle
stability. The braking intervention may
be accompanied by sounds specific to
the system.
Airbags ASC+T/DSC
*

Everything from A to Z
205n
IndexDataTechnologyRepairsCar careControlsOverview
upholstery155
vinyl upholstery154
wool velour155
Cargo
loading114
securing114
Caring for the vehicle's
finish153
Cassette operation, refer
also to the Radio Owner's
Manual
Catalytic converter121
CBC (Cornering Brake
Control)21,123
CD operation, refer also to
the Radio Owner's Manual
Cellular phone111,129
refer to also the separate
Owner's Manual
Center (high-mount) brake
lamp171
Center armrest110
Central locking system34
button38
Changing a tire173
Changing a wheel173
Check Control83
Child restraints64
Child restraint
systems61,64
Child seat security65
Child's seat61,64
Cigarette lighter112 Cleaning headlamps78
Cleaning windshield77
Clock84
Cockpit16
Code, refer to the radio
Owner's Manual
Coin box, cup holder111
Combination switch76
Compression196
Computer83
refer also to the separate
Owner's Manual
Configure settings59
Consumption85
Contents10
Convertible top45
cleaning and care157
closing following an
electrical malfunction181
compartment panel41
convenience operation34
electrical fault181
emergency closure181
Coolant127,147,199
antifreeze127
Cooling system199
Copyright4
Cornering Brake Control
(CBC)21,123
Cruise control79
Cruising range85
Curb weight198
Current check indicator20
D
Data
dimensions197
engine196
technical196
weights198
Daytime-driving lamp
switch93
DBC (Dynamic Brake
Control)124
Deep water121
Defrost setting100,105
Defrostable rear
window98,106
Defrosting the
windows100,105
Digital clock84
Dimensions197
Dipstick145
Disc brakes125
Displacement196
Display lighting93
Displays18
Disposal
batteries178
engine oil147
Distance warning87
Diversity Antenna190
Door key32
Door locks, care127 Doors
emergency operation34
remote control35
unlocking and locking34
DOT Quality Grades133
Draft-free
ventilation99,106
Drive belts200
Driving hints121
Driving in winter127
Driving lamps93
DSC (Dynamic Stability
Control)22,88,189
Dynamic Brake Control
(DBC)124
Dynamic Stability Control
(DSC)22,88,189
E
Electric power windows44
Electrical accessories,
failure179
Electrical system200
Electronic vehicle
immobilizer33
Elements of operation16
Emergency closure181
Emergency operation
convertible top181
doors34
fuel filler door180
Energy Control81

Everything from A to Z
209n
IndexDataTechnologyRepairsCar careControlsOverview
Temperature
adjusting98,104
layering99,106
Temperature display
outside temperature84
Thigh support, adjusting54
Third brake lamp171
Tilt sensor alarm
system36,43
remote control36
Tire changing173
Tire codes135
Tire condition27,132
Tire damage132
Tire inflation
pressure27,132
Tire pressure
monitoring91,192
Tire Pressure Control
(RDC)91,192
Tire Quality Grading133
Tire replacement133,134
Tire rotation134
Tire specifications137
Tire tread132
Tools166
Torque196
Towing eyelets184
Towing the vehicle184
Track197
Traction Control System,
refer to DSC88 Transmission72
Transmitter key32
Transporting children
safely64
Tread depth, tires132
Tread wear indicator132
Trip odometer81
Trunk, refer to luggage
compartment39
Turn signal indicator23,76
bulb replacement168
Turning radius197
Two-way radios129
U
Uniform Tire Quality
Grading133
Used batteries,
disposal178 V
Vacuum cleaner,
connecting112
V-belts200
Vehicle battery176,200
Vehicle care
exterior152
interior154
Vehicle Identification
Number (VIN)149
Vehicle immobilizer33 Vehicle painting152
Vehicle start69
Vehicle storage160
Vehicle vacuum cleaner,
attaching112
Vehicle weight198
Ventilation96,99,102
draft-free99,106
Vinyl upholstery, care154
W

Warning flashers25
Warning lamps20
Warning messages83
Warning triangle25
Warranty and Service Guide
Booklet150
Washer fluids144,199
Washer nozzles144
Washer reservoir, filling144
Washer system76
Washing your vehicle151
Water on roadways121
Waxing, paintwork153
Wear indicator in the
tires132
Weights198
Wheel changing173
Wheel lug wrench173
Wheel rims135
Wheel specifications137
Wheelbase197 Wheels and tires135,137
Width197
Windows
convenience operation34
remote control35
remove
condensation105
Windshield washer,
automatic77
Windshield washer nozzle
adjustment144
Windshield washer reservoir,
filling144,199
Windshield wiper76
blade replacement166
Winter operation127
Winter tires135,136
Wiper blade,
replacement166
Wiper system76
Work in the engine
compartment140
X
Xenon lamps167,193