2004 BMW M3 COUPE brake rotor

110Special operating instructions
Break-in proceduresTo ensure that your vehicle provides
maximum economy throughout a long
service life, we request that you
observe the following suggestions.
Because of its engineering design,
the BMW M3 is an especially high-
quality vehicle. It is in your best interest
to follow the break-in tips very closely.
Doing this, you will create the basis for
a long, optimum service life.Up to 1,250 miles/2,000 km: Drive at
varying engine and road speeds, but
do not exceed the following engine or
road speeds:
5,500 rpm or 105 mph / 170 km/h.
Obey your local and state maximum
speed limits.
Do not depress the accelerator pedal to
the full-throttle position.
Vehicles with SMG Drivelogic, refer to
page 67: refrain from using driving pro-
gram 6 in the sequential mode during
the break-in period.
>Following the break-in inspection at
1,250 miles/2,000 km, you can grad-
ually increase engine or road speeds.
Follow the same break-in procedure if
either the engine or the differential
should have to be replaced in the
future.TiresDue to technical factors associated
with their manufacture, tires do not
achieve their full traction potential until
an initial break-in period has elapsed.
Thus drive with extra care during the
initial 200 miles/300 km.
Obey your local and state maximum
speed limits.
When the vehicle is operated on
wet or slushy roads, a wedge of
water may form between the tire and
the road surface. This phenomenon is
referred to as hydroplaning, and can
lead to partial or complete loss of trac-
tion, as well as loss of vehicle control
and braking effectiveness. Reduce your
speed on wet roads. before the brake pads and rotors
achieve the optimal pad-surface and
wear patterns required for trouble-free
operation and long service life later on.
To break in the separate parking brake
drums, apply the parking brake lightly
when coasting to a standstill – at a traf-
fic signal, for instance – use caution to
avoid posing a danger to other road
users.
To avoid corrosion, repeat this proce-
dure from time to time.
The brake lamps do not come on
when the parking brake is set.
Vacuum for the brake system servo unit
on your BMW is available only when the
engine is running. When you move the
vehicle with the engine off – when tow-
ing, for example – substantially higher
levels of pedal force will be required to
brake the vehicle. optimally after about 300 miles/500 km.
Drive cautiously during this break-in
period and do not press the clutch or
shift at high engine speeds.

112
Antilock Brake System (ABS)The conceptABS keeps the wheels from locking
during braking, thereby enhancing
active driving safety.Braking with ABSIf you are in a situation that requires full
braking, you will exploit the full benefits
of the ABS system if you apply maxi-
mum pedal pressure – panic stop.
Since the vehicle maintains steering
responsiveness, you can avoid possible
obstacles with a minimum of steering
effort, despite the full brake application.
Pulsation at the brake pedal combines
with sounds from the hydraulic circuits
to indicate to the driver that ABS is in
its active mode.Dynamic Brake Control (DBC)DBC is included in the DSC, refer to
page 83.
If you apply the brakes rapidly, this sys-
tem automatically generates maximum
braking force boost and thus helps to
achieve the shortest possible braking
distance in panic braking situations. All
of the benefits of the ABS are exploited
under these circumstances.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.
Cornering Brake Control (CBC)CBC is an advanced engineering
design of the ABS. When braking while
cornering at high speed or braking dur-
ing high lateral acceleration, or when
braking during a lane change, vehicle
stability is improved and steering
response is enhanced.
Brake systemBrake fluid levelLow brake fluid level in the reservoir
combined with longer than usual pedal
travel may indicate a defect in one of
the brake system's hydraulic circuits.
Proceed to the nearest BMW cen-
ter. Higher brake application pres-
sure may be necessary when stopping,
and the vehicle may exhibit a slight ten-
dency to pull to one side. Brake dis-
tances may even be longer. Please
remember to adapt your driving style
accordingly. sionally, during extended periods when
the vehicle is not used at all, and in
operating conditions where brake appli-
cations are less frequent, there is an
increased tendency for corrosion of the
rotors and accumulation of contamina-
tion on the brake pads. This occurs
because the minimal pressure that must
be exerted by the pads to clean the
rotors by brake applications is not
reached.

113
Corrosion on brake rotors is signaled by
a running or pulsation during braking;
even extended subsequent braking will
not cure this phenomenon.
It is a good idea to periodically dry the
brakes with a gentle application when
driving in rain and on wet roads. Watch
traffic conditions to ensure that this
maneuver does not endanger other
road users. The heat generated in this
process helps dry the pads and rotors
to ensure that your brake system will
respond with undiminished efficiency
when you need it.
Extended or steep mountain descents
should be driven in the gear in which
only minimal periodic brake applica-
tions are required. This helps avoid
placing excessive loads on the brake
system. Stay within the allowable rpm
range. For additional information, refer
to page 76.
Do not coast with the clutch
depressed or with the gearshift
lever in idle. Do not coast with the
engine switched off. If you do so the
engine provides no braking effect and
there is no power assist for braking or
steering when the engine is not run-
ning.<
Brake pads
For your own safety: use only
brake pads which BMW has
approved for your specific vehicle
model. BMW cannot evaluate non-
approved brake pads to determine if
they are suitable for use, and therefore
cannot ensure the operating safety of
the vehicle if they are installed.<
Brake system
OverviewControlsMaintenanceRepairsDataIndex

Everything from A to Z
157
Blower
automatic climate
control 94
BMW Maintenance
System 126
BMW sports seat 45
Bore, refer to Engine
data 150
Bottle holders, see Bever-
age holders 98, 99
Brake fluid 125
indicator lamp 18, 125
level 125
Brake force display 87
Brake hydraulic system 112
Brake lamps
bulb replacement 135
indicator lamp, defective
lamp 78
Brake lights
brake force display 87
Brake pads 113
brake fluid level
18, 112, 125
breaking in 110
disc brakes 112
Brake rotors
brake system 112
breaking in 110
Brake system
brake pads, indicator
lamp 19Brake wear warning
indicator lamp 19
Brakes
ABS 112
brake fluid 125
breaking in 110
indicator/warning lamp
18, 19
parking brake 65
Break-in procedures 110
Bulb replacement 133
Bulb replacement, refer to
Lamps and bulbs 133
Buttons in steering wheel 22
C
California Proposition
65 warning 128
Can holders, see Beverage
holders 98, 99
Capacities 153
Car battery 140
Car care, refer to the Caring
for your vehicle brochure
Car keys, refer to Keys 30
Car radio, refer to the
Owner's Manual for Radio
Car telephone
preparation 99
Car telephone, refer to the
separate Owner's ManualCar vacuum cleaner, con-
necting 100
Car wash, refer to the Caring
for your vehicle brochure
Caring for headlamp cov-
ers, refer to the Caring for
your vehicle brochure 133
Carpet care, refer to the
Caring for your vehicle
brochure
Cassette operation, refer to
the Owner's Manual for
Radio/Onboard Computer
CBC Cornering Brake Con-
trol 112
warning lamp 19
CD changer, refer to the
Owner's Manual for
Radio/Onboard Computer
CD operation, refer to the
Owner's Manual for
Radio/Onboard Computer
Cellular phone 99
Center high-mount brake
lamp
bulb replacement 136
Central locking system 30
button 34
passenger
compartment 34
Charge indicator lamp 18
Check Control 78Check Gas Cap
indicator lamp 19
Child seats, refer to Child-
restraint systems 56
Child-restraint systems 56
Cigarette lighter 100
Cigarette lighter socket 100
Cleaning chrome parts, refer
to the Caring for your vehi-
cle brochure
Cleaning light alloy wheels,
refer to the Caring for your
vehicle brochure
Cleaning the vehicle, refer to
the Caring for your vehicle
brochure
Cleaning windshield 74
Clock 79
12-/24-hour mode 79
setting, refer also to the
Owner's Manual for
Radio/Onboard Computer
Closing
from inside 34
from outside 31
Clothes hooks 101, 111
Clutch
breaking in 110
Cockpit 14
Code, refer to the Owner's
Manual for Radio/Onboard
Computer
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