brake fluid BMW M3 COUPE 2002 E46 Owner's Manual

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OverviewControlsMaintenanceRepairsDataIndex

Controls and features
Operation, maintenance

Lamps:

Parking lamps/Low beams80
Instrument lighting81
High beams/Standing lamps81
Fog lamps82
Interior lamps82
Reading lamps82

Controlling the climate for
pleasant driving:

Air conditioner83
Automatic climate control86
Roller sun blind89

Interior conveniences:

Sound system90
Glove compartment90
Storage compartments91
Cellular phone92
Ashtray, front92
Ashtray, rear93
Clothes hooks93

Loading and transporting:

Through-loading system94
Ski bag95
Cargo loading96
Roof-mounted luggage rack97

Special operating instructions:

Break-in procedure100
Driving notes101
Antilock Brake System101
Brake system102

Wheels and tires:

Tire inflation pressure103
Tire condition103
Tire replacement104
Wheel and tire
combinations105
Special characteristics of winter
tires106
Snow chains106

In the engine compartment:

Hood107
Engine compartment
essentials108
Washer fluids109
Engine oil110
Coolant112
Brake fluid113

Maintenance:

The BMW Maintenance
System114

Laws and regulations:

Technical modifications115
California Proposition
65 Warning115
OBD interface socket116

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OverviewControlsMaintenanceRepairsDataIndex

Indicator and warning lamps

Technology that monitors itself

Indicator and warning lamps that are
identified by "

l

" are tested for proper
functioning whenever the ignition key is
turned. They each light up once for
different periods of time.
If a fault should occur in one of these
systems, the corresponding lamp does
not go out after the engine is started or
it lights up while the vehicle is moving.
You will see how to react to this below.

Red: stop immediately

Battery charge current



l

The battery is no longer being
charged. Indicates a defective
alternator drive belt or a problem with
the alternator's charge circuit. Please
contact the nearest BMW center.
If the drive belt is defective, do not
continue driving, as the engine
could sustain serious damage from
overheating. If the drive belt is defec-
tive, increased steering effort is also
required.

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Engine oil pressure


l

Stop the vehicle immediately
and switch off engine. Check
the engine oil level and top up as
required. If the oil level is correct,
please contact the nearest BMW
center.
Do not continue driving, as the
engine could sustain serious
damage from inadequate lubrication.

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Flat Tire Monitor
l
In addition, an acoustic signal
sounds: a tire failure has
occurred. Reduce vehicle speed imme-
diately to stop the vehicle. Avoid hard
brake applications. As you steer the
vehicle, use caution and avoid overcor-
recting.
For additional information, refer to
page 77
Brake warning lamp
l
If the lamp comes on when the
parking brake is not engaged:
check the brake fluid level. Before
driving further, be sure to read the
notes on pages 102 and 113
Brake warning lamp for Cana-
dian models.

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OverviewControlsMaintenanceRepairsDataIndex
Indicator and warning lamps

Yellow: check as soon as possible

Antilock Brake System (ABS)

l

In addition, an acoustic signal
sounds: ABS has been deacti-
vated in response to system malfunc-
tion. Conventional braking efficiency is
available and unrestricted. Please have
the system inspected by your BMW
center.
For additional information, refer to
page 101
ABS warning lamp for Canadian
models.
Engine oil level
Comes on while driving: the
engine oil level has fallen to the
absolute minimum; refill as soon as
possible. Do not drive more than
30 miles (50 km) until you do.
For additional information, refer to
page 110
Engine oil level
Comes on after the engine has
been switched off: refill engine
oil at the earliest opportunity (next time
you stop for gas).
For additional information, refer to
page 110

Brake pads

l

Have the brake pads checked.
For additional information, refer
to page 102
Flat Tire Monitor

l

The Flat Tire Monitor has been
deactivated, either at the button
or in response to a system malfunction.
In the event of a malfunction, have the
system checked by your BMW center.
For additional information, refer to
pages 24, 77
Dynamic Stability Control
(DSC)

l


The indicator lamp flashes and
an acoustic signal sounds: the system
is active and governs drive force and
braking force. If the indicator lamp fails
to go out after the engine is started, or if
it comes on during normal driving and
stays on:
DSC has been deactivated, either at the
button or in response to a system
malfunction.
In the event of a malfunction, have the
system checked by your nearest BMW
center.
For additional information, starting on
page 76

Dynamic Brake Control (DBC)

l

Malfunction in DBC system.
Conventional braking efficiency
is available and unrestricted.
Have the system checked and repaired
at your BMW center as soon as
possible.
For additional information, refer to
page 76
Dynamic Brake Control (DBC)
warning lamp for Canadian
models.
Add washer fluid
The washer fluid is too low. Top
up the fluid at the earliest
opportunity.
For additional information, refer to
page 109
Add coolant
The coolant level is too low. Add
coolant at the earliest opportu-
nity.
For additional information, refer to
page 112

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Brake system Brake fluid level Low 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
center. Higher brake application
pressure may be necessary when stop-
ping, and the vehicle may exhibit a
slight tendency to pull to one side.
Brake distances may even be longer.
Please remember to adapt your driving
style accordingly.<
Disc brakesWhen 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
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 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 brake application
when driving in rain and on wet roads.
Monitor 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 70.
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
running.<
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 suited for use, and therefore
cannot ensure the operating safety of
the vehicle if they are installed.<

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Engine compartment essentials1 Filler neck for headlamp and
wind-
shield washer system109
2 Coolant expansion tank112
3 Positive terminal connection for
jump-starting (positive terminal)131 4 Engine oil filler neck110
5 Expansion tank for SMG
* hydraulic
unit (checking and possible refilling
by your BMW center)596 Engine oil dipstick110
7 Filler neck for brake fluid113

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OverviewControlsMaintenanceRepairsDataIndex
Brake fluid
If the brake warning lamp
comes on and the parking brake
has been released: the brake
fluid level is too low.
For adding brake fluid or for
determining and correcting the
cause of brake fluid loss, consult your
BMW center. Your BMW center is
familiar with the specifications for
factory-approved brake fluids (DOT 4).
Due to loss in brake fluid, pedal travel
can lengthen and braking efficiency
may be reduced. Comply with the infor-
mation provided on page 102.
Brake fluid is hygroscopic, that is,
it absorbs moisture from the air
over time.
In order to ensure the safety and reli-
ability of the brake system, have the
brake fluid changed every two years by
a BMW center. Refer also to the Service
and Warranty Information Booklet (US
models) or the Warranty and Service
Guide Booklet (Canadian models).
Brake fluid is toxic and damages the
vehicle's paint. You should always store
it in its original container and in a loca-
tion inaccessible to children.
Do not spill brake fluid and fill the brake
fluid reservoir only as far as the "MAX"
mark. The brake fluid could ignite upon
contact with hot engine parts and
cause serious burns.<
Comply with the applicable envi-
ronmental laws regulating the
disposal of brake fluid.<