lock BMW M3 COUPE 2001 E46 Service Manual

106n
Disk brakesDisk brakes furnish optimum decelera-
tion and braking control and greater
fade resistance under heavy use.
When the vehicle is driven only occa-
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
disks 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
disks by brake applications is not
reached.
If the brake disks are corroded, they will
tend to respond to braking with a
pulsating effect which even extended
application will fail to cure.
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 suited for use, and therefore
cannot ensure the operating safety of
the vehicle if they are installed.<
Driving notes While driving on wet roads or in heavy
rain, it is a good idea to apply light
pressure to the brake pedal every few
miles or kilometers. Watch traffic condi-
tions to ensure that this maneuver does
not endanger other road users. The
heat which is generated by the brake
applications helps to dry the brake
pads and disks.
Maximum braking force is obtained
while the wheels continue to rotate,
peaking when the wheels remain on the
verge of locking without actually doing
so. ABS maintains this state automati-
cally. If the ABS should ever fail, pump
the brakes if possible (refer to
page 109).
Extended or steep mountain descents
should be driven in the gear in which
only minimal periodic brake application
is required. This avoids excessive strain
on the brakes and possible
impairment of the braking effect. Stay
within the allowable engine speed
range. For further information, refer to
page 69.
The braking effect of the engine can be
further increased by downshifting, into
first gear, if necessary. Should engine braking prove inade-
quate, you should still avoid extended,
continuous braking. Instead of main-
taining low to moderate pressure over
an extended period of time, you should
decelerate the vehicle by applying more
substantial force on the pedal (watch
for following traffic). Pause before
repeating the brake application. This
staggered braking technique allows the
brakes to cool in the intervals between
active braking phases, preventing over-
heating and ensuring that full braking
capacity remains available at all times.
Do not coast with the clutch
depressed, with the shift lever in
neutral or with the engine shut off. The
engine does not provide any braking
effect with the transmission in neutral or
with the engine shut off.
Do not allow floor mats, carpets or any
other objects to protrude into the area
around the brake pedal, the clutch or
the accelerator which could obstruct
their freedom of movement.<

108n
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 antifreeze/corrosion inhibitor.
This mixture provides protection
against freezing down to approx.
Ð34 7 (Ð37 6). Have the coolant
replaced every 4 years. LocksBMW door lock deicer can be used to
free them if frozen. This deicer also
contains lubricant.
After using deicer, treatment with BMW
lock barrel grease is recommended.
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.<
Snow chains Mount BMW snow chains
*, whether on
summer or winter tires, in pairs on the
rear wheels only, keeping the manufac-
turer's safety instructions in mind. Do
not exceed a maximum speed of
30 mph (50 km/h) with snow chains. In
rare situations like these, it is advisable
to turn off the DSC and RDW. Refer to
page 76 or page 78.
Starting offWhen trying to drive out of deep snow,
or when "rocking" the vehicle to free it,
it may be advisable to temporarily
deactivate the DSC system. Refer to
page 76.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. Adapt
your speed and driving style when
approaching grades or slopes. Maintain
an adequate distance between yourself
and the vehicle ahead.

109n
IndexDataTechnologyRepairsCar careControlsOverview
Winter operationBrakingWinter road conditions substantially
reduce the amount of traction available
between the tires and the road surface;
the resulting increase in braking
distance is considerable and should
always be kept in mind.
ABS is intended to prevent the wheels
from locking during brake applications,
thus helping to maintain vehicle stability
and steering response.
If the ABS does not respond in a critical
braking situation and the wheels lock:
Reduce the pressure on the brake
pedal until the wheels just start to roll
again while still maintaining enough
force to continue braking. Then
increase the pressure, reduce the pres-
sure when the wheels lock, reapply
pressure etc.
This staggered braking procedure will
reduce stopping distances while
helping you maintain steering control.
You can then attempt to steer around
hazards after you have reduced pres-
sure on the brake pedal. Do not shift down on slick road
surfaces. Doing so could cause
the rear wheels to lose traction and
skid, which could result in the loss of
vehicle control.<
Depress the clutch during hard
braking on road surfaces which
provide only poor or uneven traction.<
Skid control Depress the clutch and let up on the
gas. Countersteer carefully and attempt
to regain control of the vehicle.
ParkingEngage first or reverse gear. Depending
on the steepness of the incline, you can
apply the parking brake as well. In order
to prevent the parking brake pads from
locking due to frost or corrosion, dry
them by gently applying the parking
brake as the vehicle is coming to a
stop. Make sure that following traffic
is not endangered.
The brake lamps do not light up
when the parking brake is
applied.<

118n
Do not work on your vehicle
without appropriate skills. Always
switch off the engine and allow it to
cool down before working in the engine
compartment. Always disconnect the
battery before working on any electrical
systems or equipment, especially when
these are located within the engine
compartment. Comply with all applica-
ble instructions and warnings. Failure to
work in an informed, professional man-
ner when servicing components and
materials constitutes a safety hazard
for vehicle occupants and other road
users. If you are not familiar with the
guidelines, please have the operations
performed by your BMW center.<
To unlock Pull the lever located under the left-
hand side of the instrument panel.
To openPull the release handle and open the
hood.
Hood

125n
IndexDataTechnologyRepairsCar careControlsOverview
Coolant
Do not add coolant to the cooling
system when the engine is hot. If
you do, escaping coolant can cause
burns.
To avoid the possibility of damage later
on, never use anything other than
factory-approved, nitrite and amino-
free extended-duty antifreeze with
corrosion inhibitor. Your BMW center is
familiar with the official specifications.
Antifreeze and anticorrosion agents are
hazardous to health. You should always
store them in original containers and in
a location inaccessible to children.
Extended-duty antifreeze with corro-
sion inhibitor contains ethylene glycol,
a flammable substance. For this reason,
do not spill long-life antifreeze with
corrosion inhibitor on hot engine parts.
It could catch fire and cause burns.<
Check the coolant level and add
coolant Check the coolant level when the
engine is cold (approx. 68 7 or
+20 6). The coolant gauge needle in
the instrument cluster must be located
in the blue field, as otherwise you could
be scalded when adding more fluid.
1 Open the cap for the expansion tank
by turning it slightly counter-clock-
wise to allow accumulated pressure
to escape. Then open
2 The coolant level is correct whenever
the upper end of the red float rod is
aligned with the upper edge of the
filler neck (refer to the arrow in the
illustration and the schematic
diagram next to the filler neck as well)
3 If the coolant is low, slowly add
coolant until the correct level is
reached Ð do not overfill.
The coolant is a mixture of water and
extended-duty antifreeze with corrosion
inhibitor. Always maintain the
prescribed all-season 50:50 mixture
ratio for year-round protection against
internal corrosion. No other additives
are required.Change the coolantReplace the coolant every three years.
Comply with the applicable envi-
ronmental laws regulating the
disposal of extended-duty antifreeze
with corrosion inhibitor.<

IndexDataTechnologyRepairsCar careControlsOverview
145n
Repairing a flat tire
Precautions in case of a flat tire:
Stop the vehicle as far as possible
from passing traffic; switch on the
hazard warning flashers.
Switch on the hazard warning flashers.
Turn the steering wheel to the straight-
ahead position, remove the key and
engage the steering lock. Shift into 1st
or reverse gear and engage the parking
brake.
All passengers should be outside the
vehicle and well away from your imme-
diate working area (behind a guardrail,
for instance).
If a warning triangle or portable hazard
warning lamp is available, set it up on
the roadside at an appropriate distance
from the rear of the vehicle.
Comply with all safety guidelines and
regulations.<
M Mobility system With the BMW M3, you will find an
M Mobility system for fixing flat tires.
With the aid of this system, you can
apply a liquid sealant to the inside of
the tire, thereby sealing off the
damaged area, and then continue
driving.
The M Mobility system makes trans-
porting a spare wheel superfluous,
thereby reducing the amount of weight
you have to carry around.
The M Mobility system is located in the
luggage compartment under the floor
panel:
1 Lift up the floor panel
2 Loosen the M Mobility system from
its storage location.
Note that the fluid bottle in the
system's sealant container must
be replaced every 3 years by your BMW
center if the system is not used.<

Everything from A to Z
A
ABS (Antilock Brake System) 21, 104
Accessories 6
Activated-charcoal filter 88
Add brake fluid 121t, 126 t
Adding engine oil 123t
Adding washer fluid 122t
Adjusting the backrest 46
Adjusting the lumbar support 48
Adjusting the seat 47
Adjusting the steering wheel 52
Adjusting the temperature 86
Adjusting the thigh support 47
Adjusting the width of the backrests 48
Air conditioner 87
Air distribution, automatic 86
Air nozzles 84
Air outlets 84
Air pressure, tires 26, 111
Air supply 87
vents, recirculated air
mode 87
Airbags 56, 133 , 158
warning lamps 21Alarm system
40
Alcantara care 132
Antenna 110
Antenna, Diversity 159
Antifreeze 125
radiator 108
Antilock Brake System (ABS) 21, 104
Anti-theft alarm system 40
Anti-theft protection 31
Aquaplaning 103, 111
Armrest 91
Ashtray front 92
rear 93
Attach vacuum cleaner 93
AUC (Automatic recirculated air control) 87
Automatic car washes 128
Automatic climate control 84
Automatic cruise control 67
Automatic dimming, interior rearview mirror 50
Automatic recirculated air control (AUC) 87
Auxiliary terminal for jump- starting 121t
Average consumption 74
Average speed 74Avoiding unwanted
alarm 41
Axle loads 168
B
Backrest
adjusting 45
releasing 47
Backup lamps 64
bulb replacement 141t
Battery 148, 170
add distilled water 149t
capacity 170
charging 150t
current check lamp 20
removal and
installation 150
symbols 149
Belts 54
Beverage holder 91
BMW High Performance Synthetic Oil 124
BMW sports seat 46, 47
Bore 166
Bottle holder, refer to beverage holder 91
Brake hydraulic system 20
Brake lamps, bulb replacement 141t
Brake pads 107
indicator lamp for 21Brakes
driving notes 103
faults 107t
fluid change 71
fluid level 107
warning lamps 20
Break-in procedure 102
C
California Proposition
65 Warning 134
Can holder, refer to beverage holder 91
Capacities 169
Car Memory 52
Car phone 92
Car radio 110
reception 110, 158
refer also to the separate
Owner's Manual
Car vacuum cleaner, connecting 93
Car wash 128
Care exterior 129
interior 131
rubber seals and
components 108
upholstery 131
wool velour 131
Cargo loading 97

Everything from A to Z
175n
IndexDataTechnologyRepairsCar careControlsOverview
Caring for the vehicle
finish129
Cassette operation, refer to
the radio Owner's Manual
Catalytic converter103
starting problems103
CBC (Cornering Brake
Control)21, 104
CD operaton, refer to the
radio Owner's Manual
Cellular phone110
refer also to the separate
Owner's Manual
Center armrest91
Center (high-mount) brake
lamp143
Central locking system31
key36
Check Control72t
Checking air pressure26t
Checking engine oil
level123t
Child restraint
system55, 59
Child seat safety55, 60
Cigarette lighter93
Clean the headlamps67
Clean the windshield66
Clock73
Clothes hooks94
Cockpit16Code, refer to the radio
Owner's Manual
Coin box91
Combination switch65
Compression166
Computer72
Configuring the settings52
Consumption74
Consumption display70
Control elements16
Coolant108, 121t, 125
antifreeze108
Coolant temperature
gauge70
Cooling system169
Copyright4
Cornering Brake Control
(CBC)21, 104
Cruise control67
Cruising range74
Cup holder, refer to
beverage holder91
Curb weight168
DDashboard16
Data
dimensions167
engine166
technical166
weights168Daytime-driving lamp
switch81
Deep water103
Defrost position87t
Defrostable rear window88
Defrosting the
windows87t
Difficult steering110t
Digital clock73
Dimensions167
Dipstick123
Disk brakes106
Displacement166
Display lighting81
Displays18
Disposal
used batteries151
used engine oil124
Distance warning75
Diversity Antenna159
Door key30
Door locks, care108
Doors
emergency
actuation32t
operating manually32
remote control33
unlocking and
locking32, 33
DOT Quality Grades112
Draft-free ventilation88
Drive belts170Driving in winter108
Driving lamps81
Driving notes
aquaplaning103
brakes103
disk brakes106
sliding109
slippery roads108
DSC (Dynamic Stability
Control)22, 76, 159
Dynamic Stability Control
(DSC)22, 76, 159
EElectric power windows42
Electrical accessories,
failure151t
Electrical failure
fuel filler door152t
sliding/tilt sunroof153t
Electrical system170
Electronic vehicle
immobilizer31
Emergency actuation
doors32t
fuel filler door152t
sliding/tilt sunroof153t
Engine
compartment120
coolant125, 169
data166
displacement166

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
177n
IndexDataTechnologyRepairsCar careControlsOverview
JJump-starting154KKey30
with remote control30
Key Memory52LLamps
fog lamps82
footwell lamps82
interior lamps82
reading lamps83
LAMPS ON warning81
Lashing eyes98
LATCH attachment of the
child seat60
Leather care132
Length167
License plate lamp, bulb
replacement143t
Light switch81
Light-alloy wheels116
Lighter93
Load-securing devices98
Louvers84
Low beam headlamps81
bulb replacement139tLuggage compartment37
capacity168
emergency release37t
floor mat39
floor panel39
lid37
lighting37
locking separately37
remote control34
Luggage compartment
lamps, bulb
replacement144t
Luggage rack98
Lumbar support48
MM Engine dynamics
control80
M Mobility system145
components146
using146
Maintenance71, 127t
Make-up mirror50
Malfunction displays72t
Manual transmission64
Manual-shift gear lever64
Master key30
Mechanical seat45
Memory51
MFL (Multifunction steering
wheel)23Microfilter/Activated-
charcoal filter88
changing152t
Mirror memory51
Mirrors49
automatic curb
monitor49
with automatic dimming
feature161
Mobile phone110
Modifications,
technical6, 134
Motion sensor, interior40
Multifunction steering wheel
(MFL)23
M+S radial tires115
NNavigation system, refer to
the separate Owner's
Manual
Neckrest46OOBD interface socket135
Obstruction protection42
Odometer69
Oil
additives123
capacity169
consumption123Oil change intervals, see the
Service and Warranty
Information Booklet (US
models)/Warranty and
Service Guide Booklet
(Canadian models)
Oil filter change169
Oil level, indicator lamp21
Oil pressure, indicator
lamp20
OILSERVICE71
Onboard computer, refer to
computer72
Onboard monitor, refer to
the separate Owner's
Manual
Onboard tool kit138t
Opening and closing
from inside36
via remote control33
via the door lock32
Outside temperature
display73
PPaint blemishes129
Paintwork
minor repairs130
waxing130
Paint, care129
Panic mode35