2001 BMW M3 COUPE torque

76n
Dynamic Stability Control (DSC) The conceptDSC maintains vehicle stability, even in
critical driving situations.
The system optimizes vehicle stability
during acceleration and when starting
from a full stop, as well as optimizing
traction. In addition, it also recognizes
unstable driving conditions such as
understeering or oversteering in curves,
and helps the vehicle remin on a steady
course by using the engine and brake
system to intervene at the different
wheels. This, of course, is true only
within physically teasible limits.
The DSC is operational every time you
start the engine. The laws of physics cannot be
repealed, even with DSC. It will
always be the driver's responsibility to
drive in a manner that matches road
conditions. We therefore urge you to
avoid using the additional safety margin
of the system as an excuse for taking
risks.
Do not make any modifications to the
DSC system. Allow only authorized
technicians to perform service proce-
dures on the DSC.<
At first, you may need some time to
become accustomed to this system's
intervention. However, it guarantees
optimum drive force and at the same
time, the best possible vehicle stability.
For additional details concerning DSC,
refer to the chapter "Advanced tech-
nology" on page 158.
Indicator lamp
The indicator lamp in the instru-
ment cluster will go out shortly
after the ignition has been
switched on. Refer to pages 21, 22.
>Indicator lamp flashes: the DSC is
active and is controlling the drive
torque based on driving conditions
>If the indicator lamp fails to go out
after the engine has been started, or
if it comes on during normal driving
and stays on: the DSC has been
switched off via the button or there is
a malfunction. You can continue to
drive the vehicle normally, but
without DSC. Please consult your
BMW center for repairs.

79n
IndexDataTechnologyRepairsCar careControlsOverview
Tire Pressure Warning (RDW)Activating/deactivating the
systemThe system is automatically active in
ignition key position 2 and is therefore
always on during driving.
To deactivate the system: tap the
button, the indicator lamp will light up
yellow.
To activate the system: tap the button
again, the indicator lamp goes out.
Deactivate the system while driving
with snow chains, since false warnings
and undetected losses in pressure are
possible under these kinds of condi-
tions.
Flat tire
The indicator lamp in the instru-
ment cluster will light up red in
the event of tire pressure loss.
In addition, an acoustic signal is
sounded. To come to an immediate
stop, reduce speed, while avoiding any
sudden, jerky braking or steering
maneuvers.
Fix the flat tire using the M Mobility
system (refer to page 145).
Reset the indicator lamp: the red indi-
cator lamp must be switched off manu-
ally after mounting a new wheel. At this
point, hold the RDW switch down until
the indicator lamp goes out. Reinitialize
the system afterward.
The RDW cannot alert you to
severe and sudden tire damage
caused by external factors.
The RDW will not identify the natural
loss of pressure in all four tires, either.<
Check the tire inflation pressure
on a regular basis and correct if
necessary. Refer to page 26.
Under certain circumstances, there
may be false warnings or a delayed
detection of pressure losses when
driving on snow-covered or slippery
road surfaces.
A sporty driving style (slip at the wheels
receiving the torque, high lateral accel-
eration) can lead to delayed RDW warn-
ings.<
System malfunctionAs long as there is still a malfunction,
the indicator lamp in the instrument
cluster will stay lit up yellow.
Please contact your BMW center for
additional information.

159n
IndexDataTechnologyRepairsCar careControlsOverview
The limitations inherent to radio recep-
tion in a moving vehicle have been
minimized by a number of innovative
system designs:
The "Radio Data System" (RDS) makes
sure that, for broadcast stations
sending on several frequencies, the
radio automatically tunes to the
frequency with the best reception
quality.
The Diversity Antenna system employs
several FM antennas integrated within
the rear window to provide three sepa-
rate sources for receiving broadcast
waves. An integral processor automati-
cally selects the antenna with the best
FM reception quality at any given time.
The selection of the antenna takes
place within milliseconds, and is there-
fore not noticed by the radio listener. The primary goal in developing the
Dynamic Stability Control (DSC) for the
BMW M3 is to achieve the greatest
amount of safety while at the same time
getting the most pleasure out of perfor-
mance-oriented driving.
Using highly sensitive sensors, the DSC
monitors current operating conditions
for your vehicle as they relate to driving
stability and traction. In addition, wheel
speeds, steering angle, lateral acceler-
ation, brake pressure and vehicle
movement around its vertical axis are
also ascertained and evaluated.
If the DSC detects unstable conditions
on a curve, then the DSC will intervene
in engine management within millisec-
onds, reducing drive torque or, if the
need arises, will individually slow one or
more wheels down to keep the vehicle
on a steady course.
If differences in wheel speed should
occur, the system will recognize the
dangers associated with wheel spin
and will reduce the drive torque; if
necessary, it will do so using brake
intervention at the rear wheels as well.
DSC offers the highest degree of
driving stability and safety not only
when you first start your vehicle, are
driving on straightaways or when
braking, but also when driving through
curves.The safety belt tensioner makes sure
that the belt tightens during a head-on
collision to ensure that occupants
remain firmly positioned in their seats.
A gas-pressure system retracts the
buckle assembly to tension the
shoulder and lap belts within fractions
of a second. This reduces the tendency
to slide under the lap belt. Radio reception DSC Safety belt tensioner

160n
M3 Engine concept Rain sensor
*
BMW M will continue to develop BMW
engines for the performance-oriented,
yet responsible driver. That is why value
is placed on an engine design that
guarantees maximum thrust over a
wide engine speed range.
This is done by using high-grade mate-
rials and components with optimized
details. The engine thereby produces
higher speeds than can be achieved
with conventional engines.
Associated with the proper transmis-
sion gear ratio and an especially perfor-
mance-oriented engine electronics
system, the torque opens up with this
so-called "high-speed aspirated
engine" extremely evenly throughout
the entire engine speed range from
1,000 to max. 8 ,000 rpm.
In actual usage, this means improved
acceleration and more spontaneous
response throughout the engine speed
range, thus affording more driving plea-
sure.
Depending on how wet the windshield
is, the rain sensor controls the opera-
tion of the windshield wipers.
Infrared light is carried along the
surface of the windshield in an optical
conductor in such a manner that it is
reflected completely when the wind-
shield is dry. The quantity of reflected
light is measured.
If there is moisture on the glass, the
amount of light reflected is reduced
since the infrared light at the surface of
the windshield can escape. The quan-
tity of reflected light is thus a means of
gauging the degree of wetness on the
windshield.

166n
Displacement
Number of cylinders cu in (cmm) 198.1 (3,246)
6
Max. output
at engine speed hp (kW)
rpm333 (245)
7,900
Maximum torque
at engine speedlb-ft (Nm)
rpm262 (355)
4,900
Compression ratioe
11.5
Stroke
Borein (mm)
in (mm)3.58 (91)
3.43 (87)
Fuel-injection system Digital electronic
engine-management system
Engine data

Everything from A to Zhigh-speed aspirated
engine160
speed166
starting62t
torque166
Engine concept M3160
Engine oil
add123t
capacity169
consumption123
pressure20
temperature69
Entry to the rear47
Exterior mirrors49
Eyelets, towing155tFFailure messages72t
Fan87
Fault, ABS105
Filler cap cover25
Filling capacities169
Filling the washer
reservoir122t
First-aid kit24t
Flat tire111
repairing145
Fog lamps82
bulb replacement141t
Folding rear backrest95
Follow-Me-Home lamps81
Footbrake106Footwell lamps82
bulb replacement144t
Frost protection,
radiator125
Fuel26
consumption74
consumption display70
gauge70
preparation166
quality26
reserve indicator lamp70
Fuel filler door
manual release after
electrical fault152t
Fuel tank capacity169
Fuel tank gauge70
Functional status, electrical
and electronic
systems162
Fuses151
replacing151t
GGasoline26
Gasoline gauge70
Glove compartment90
Glove compartment lamp,
bulb replacement144t
Gross vehicle weight168
HHandbrake63
Handsfree system92
Hazard warning
flashers24t
Hazard warning triangle24
Head restraint46
Headlamp cleaning
system121, 122, 169
Headlamp cover,
care139t
Headlamp flasher82
Headlamp washer system,
refer to headlamp cleaning
system
Heated seats89
Heavy loads97
Height167
HiFi system Ð harman
kardon90
High beams65, 82
indicator lamp22
High engine speed160
High Performance Synthetic
Oil124
High-mount brake lamp143
Holder for beverages91
Hood release118t
Horn17
IIce warning73
Identification, tires114
Ignition key30
Ignition lock62
Imprint4
Indicator lamps20t
Individual settings52
Inflation
pressure26t, 111t
INSPECTION71
Instrument cluster18
Instrument lighting81
Instrument panel18
Interaxle tire rotation113t
Interface socket
for Onboard
Diagnostics135
Interference
cellular phone110
Interior lamps34, 82
bulb replacement143t
remote control34
Interior motion sensor40
Interior rearview mirror
automatic dimming
feature50, 161
Intermittent mode, wiper
system65

Everything from A to Z
179n
IndexDataTechnologyRepairsCar careControlsOverview
Stopping the vehicle63
Storage areas91
Storing your vehicle133
Stroke166
Summer tires114
Sun roller blind89
Sun visors50
Surface ice warning73
Switching off the engine63
Switching off the interior
motion sensor41
Symbols, used4
Synthetic oils124TTachometer69
Tail lamps141
bulb replacement141t
Tank capacity169
Technical data166
Technical
modifications6, 134
Temperature display
outside temperature73
Temperature gauge
engine coolant70
Temperature layering88
Third brake lamp143
Through-loading system95
Tilt alarm34, 41
remote control34Tire codes114
Tire damage111t
Tire inflation
pressure26, 111
Tire Pressure Warning
(RDW)78
indicator lamp22
Tire Quality Grading112
Tire
replacement112, 113t
Tire specifications116
Tire tread111
Tools138t
Torque166
Towing eyelets155t
Towing the vehicle155t
Track167
Transmission64
Transporting children
safely59
Tread depth, tires111
Tread wear indicator111
Trip odometer69
Trunk, refer to luggage
compartment37
Turn signal indicator22, 65
bulb replacement140t
Turning radius167
Two-way radios110
UUniform Tire Quality
Grading112
Used batteries,
disposal151
Used engine oil,
disposal124VVacuum cleaner,
connecting93
Vanity mirror
bulb replacement144t
Vehicle battery148, 170
Vehicle care
exterior129
interior131
Vehicle Identification
Number (VIN)126
Vehicle immobilizer31
Vehicle painting129
Vehicle storage133
Vehicle weight168
Ventilation84
draft-free88
Vinyl, care131
Voice recognition23
WWarning lamps20t
Warning messages72t
Warranty and Service Guide
Booklet127
Washing your vehicle128
Water on roadways103
Waxing, paintwork130
Wear indicator in the
tires111
Weights168
Wheel rims114
Wheelbase167
Wheels and tires114, 116
Width167
Windows
convenience
operation32, 33
remote control33
Windshield washer reservoir,
filling
Windshield wiper65
Winter operation108
Winter tires114, 115
Wiper system65
Work in the engine
compartment118tXXenon lamps139, 163