brakes BMW M3 COUPE 2003 E46 Owner's Manual

73
Cruise control is also deactivated when
the ignition key is in position 0.
The speed stored in memory is deleted.To store and maintain speed or to
acceleratePress button "+" briefly.
The system stores and maintains the
current vehicle speed. Every time you
tap the button, the speed increases by
0.6 mph / 1 km/h.
Press and hold button "+":
The vehicle accelerates without pres-
sure on the accelerator pedal. When
you release the button, the system
stores and maintains the current speed.
If on a downhill gradient the
engine braking effect is not suffi-
cient, the controlled speed can be
exceeded. Speed can drop on uphill
grades if the engine output is insuffi-
cient. When cruise control is active, every tap
of the button reduces the speed by
approx. 0.6 mph / 1 km/h.
Press and hold button "–":
With the cruise control active, the sys-
tem automatically reduces the throttle
opening to slow the vehicle. When you
release the button, the system stores
and maintains the current speed.To interrupt the cruise controlWhen the system is activated, press the
button. The indicator lamp stays on.
You can use the cruise control again
whenever you want by calling up the
speed that was stored last.
In addition, cruise control is interrupted
automatically:
>When the brakes are applied
>When pressing down the clutch pedal
>If you exceed or fall below the pro-
grammed speed for an extended
period – by depressing the accelera-
tor, for example
>Sequential M gearbox SMG II – refer
to page 65: when shifting in the
sequential mode.
To recall the stored settingPress button:
The vehicle accelerates to and main-
tains the last speed stored.
Cruise control
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82
To reactivate DSCPress the button again; the indicator
lamp goes out.Dynamic Brake Control (DBC)DBC is an integral component of the
DSC system.
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 system 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.
Flat Tire MonitorThe conceptAs you drive, the Flat Tire Monitor
keeps track of pressure levels in all four
tires The system detects whenever the
inflation pressure in a tire drops off sig-
nificantly.
Controlling the tire pressure is based
on monitoring the rpm that the tires
have relative to each other. A flat tire is
detected and reported because the rpm
suddenly deviate drastically from one
another.
Dynamic Stability Control (DSC)
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107
Driving notes
Brakes: do not rest your foot on
the brake pedal while driving.
Even light but consistent pedal pres-
sure can lead to high temperatures,
brake wear and possibly even brake
failure.
Hydroplaning: when driving on wet or
slushy roads, reduce road speed. If you
do not, a wedge of water can form
between tires and road surface. This
phenomenon is referred to as hydro-
planing, and can lead to partial or com-
plete loss of traction, vehicle control
and braking effectiveness.
Driving through water: do not drive
through water on the road if it is deeper
than 1 ft/30 cm, and then only at walk-
ing speed. Otherwise, the vehicle's
engine, the electrical systems and the
transmission may be damaged.
Rear parcel tray: never use it to store
heavy or hard objects; otherwise, occu-
pants could be injured if the vehicle is
braked hard.
Clothes hooks: when suspending cloth-
ing from the hooks, be sure that they
will not obstruct the driver's vision. Do
not hang heavy objects on the hooks. If
you do so, they could cause personal
injury during braking or evasive maneu-
vers.<
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.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.
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108
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.
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 74.
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.<
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141
Use only a nylon towing strap to tow
the vehicle, since the inherent resil-
ience of this material helps protect both
vehicles from sudden jerking move-
ments.
The towed vehicle should always
be the lighter of the two vehicles.
If this is not the case, it will not be pos-
sible to control vehicle handling. to page 139.
Never attempt to use your vehicle to
push another vehicle, since damage to
the energy-absorbing bumpers could
result.Towing a vehicle1. Gearshift lever in Neutral
2. Towing speed:
max. 45 mph / 70 km/h
3. Towing distance:
max. 95 miles/150 km
4. Leave the ignition key at position 1 to
ensure that the brake lamps, turn sig-
nal indicators, horn and windshield
wipers remain operative, and to pre-
vent the steering lock detent from
engaging
5. Switch on the hazard warning system
– observe applicable legal regula-
tions.
Find some means of identifying the
vehicle in tow, for instance, place a sign
or warning triangle in the rear window.
Make sure that the ignition key
remains in position 1 even when
the electrical system has failed to pre-
vent the steering lock from engaging.
The steering and brakes are without
power-assist when the engine is off.
This means that increased effort is
required for steering and braking.<
Vehicle with sequential M gearbox
SMG II:
To push or tow, engage selector lever
in position 0.
Never work on the vehicle with a
driving position engaged.<
Towing with a commercial tow
truck>Do not tow with sling-type equipment
>Use wheel lift or flatbed equipment
>Please comply with applicable state
towing laws.
Never allow passengers to ride in
a towed vehicle for any reason.
Never attach tie-down hooks, chains,
straps, or tow hooks to tie rods, control
arms, or any other part of the vehicle
suspension, as severe damage to these
components will occur, possibly lead-
ing to accidents.<
Towing the vehicle
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Everything from A to ZA
ABS Antilock Brake
System 107
indicator lamp 19
Accessories 5
Activated-charcoal filter 94
Adding brake fluid 116, 121
Air conditioning 92
Air distribution
automatic 92
individual 92
Air nozzles 90
Air outlets 90
Air pressure 109
checking 25
Air supply 92
Air supply vents
recirculated-air mode 93
Airbags 53
warning lamp 18
Alarm system 38
avoiding unintentional
alarms 39
indicator lamp 39
interior motion sensor 38
tilt alarm sensor 38
Antifreeze 120
Antilock Brake System
(ABS) 107
indicator lamp 19
Anti-theft system 30, 38
Armrest 96Ashtray
front 98
rear 98
AUC Automatic recircu-
lated-air control 93
Automatic car wash, refer to
the Caring for your vehicle
brochure
Automatic climate control 90
Automatic cruise control 72
Automatic dimming, interior
rearview mirror 52
Automatic headlamp
control 86
Automatic recirculated-air
control (AUC) 93
Auxiliary terminal for jump-
starting 116, 139
Average fuel
consumption 79
Average speed 79
Avoiding unintentional
alarms 39
Axle loads 146
B
Backrests
adjusting 44
unlocking 47
width adjustment 46
Backup lamps 64
replacing bulb 131Battery 137
charge 137
charge current 18
current warning lamp 18
Belts 47
3-point safety belt 100
height adjustment 48
Beverage holder 96
Blind, sun protection 94
Blower 92
BMW Maintenance
System 122
Bore 144
Bottle holder, see Beverage
holder 96
Brake fluid level 108
warning lamp 18, 121
Brake hydraulic system
warning lamps 18
Brake lamps
replacing bulb 131
Brake pads 108
Brake system
brake fluid level, warning
lamp 18
brake pads, indicator
lamp 19
Brakes
malfunctions 108
parking brake 63
Braking
driving notes 107Break-in procedures 106
Bulb replacement 129
C
California Proposition
65 warning 124
Can holder, see Beverage
holder 96
Capacities 147
Car care, refer to the Caring
for your vehicle brochure
Car vacuum cleaner, con-
necting 98
Car wash, refer to the Caring
for your vehicle brochure
Care, refer to the Caring for
your vehicle brochure
Cargo loading 102
Caring for headlamp cov-
ers, refer to the Caring for
your vehicle brochure 129
CBC Cornering Brake Con-
trol 107
indicator lamp 19
Cellular phone 97
Center armrest 96
Center high-mount brake
lamp 132
Central locking system 30
button 34
Check Control 76
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Everything from A to Z
151
CHECK FILLER CAP
indicator lamp 19
Checking coolant level 120
Checking oil level 116, 118
Child seat 55
Child-restraint systems 55
Cigarette lighter 98
Cleaning windshield 72
Clock 77
refer also to the radio or
onboard computer
Owner's Manual
Clothes hooks 99
Cockpit 14
Code, tires 112
Coin box 96
Compression ratio 144
Computer 78
Condensation, removing
from windows 92
Configure personal settings
Vehicle Memory, Key
Memory 59
Consumption
display 75
fuel 79
Coolant 116, 120, 147
indicator lamp 19
Cooling system 147
Copyright 4Cornering Brake Control
(CBC) 107
indicator lamp 19
Cruise control 72
indicator lamp 20
Cup holder, see Beverage
holder 96
Curb weight 146
Cushion height 145
D
Data
dimensions 145
engine 144
weights 146
Daytime driving lamps 86
DBC Dynamic Brake
Control 82
warning lamp 19
Defrost position 92
Defrosting
rear window 93
windows 92
Digital clock 77
Dimensions 145
Dipstick, engine oil 118
Disc brakes 108
Displacement 144
Display lighting 87
Displays 16
Distance warning 80
Divided rear backrest 100Door key 30
Door lock buttons 34
Doors
emergency operation 33
manual operation 33
remote control 31
unlocking and locking
31, 33
Drivelogic 68
Driving notes
braking 107
disc brakes 108
general 107
hydroplaning 107
DSC Dynamic Stability Con-
trol 81
indicator lamp 19
Dynamic Brake Control
(DBC) 82
warning lamps 19
Dynamic Stability Control
(DSC) 81
indicator lamp 19
E
Electric power windows 40
Electrical accessories, fail-
ure 138
Electrical malfunction
doors 33
fuel filler door 24
sliding/tilt sunroof 42Emergency operation
doors 33
fuel filler door 24
sliding/tilt sunroof 42
Emergency release
luggage compartment
lid 37
Engine
displacement 144
output 144
starting 61
switching off 63
torque 144
Engine compartment 116
Engine coolant 147
refilling 120
temperature gauge 75
Engine data 144
Engine electronics
warning lamp 19
Engine oil
adding 116, 118
capacity 147
consumption 118
quality 119
types 119
viscosity 119
Engine oil level
indicator lamp 19
warning lamp 18
Engine oil pressure
warning lamp 18
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