BMW M3 CONVERTIBLE 2002 E46 Owner's Manual

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Cargo loading Roof-mounted luggage rack for the hardtop
*
Securing the cargo in the luggage
compartment >Secure small, light items with a
luggage compartment net
* or elastic
straps, refer to page 35
>For large, heavy pieces, see your
BMW center for load-securing
devices
*. Lashing eyes (arrow) are
provided at the corners of the
luggage compartment for attaching
these load-securing devices.
Comply with the information enclosed
with the load-securing devices.
A special luggage system is available
as an option for your BMW. Please
observe the precautions included with
the installation instructions.Mounting pointsAccess to the mounting points:
To fold up the cover (arrow), please use
the tool which is provided with the
luggage system.Loading and driving notesBecause roof racks raise the center of
gravity of the vehicle when loaded, they
exercise a major effect on its handling
and steering response.
When loading, be sure to remember not
to exceed the approved roof weight or
the approved gross vehicle weight or
the axle loads. You will find the specifi-
cations under "Technical Data" on
page 146.
Make sure that the load is not too bulky,
and attempt to distribute it evenly.
Always load the heaviest pieces first (on
the bottom). Make sure that no objects
get in the way when the luggage
compartment lid is opening or closing.
When carrying cargo on the roof,
always ensure that it is properly
secured. Loose cargo can shift and
even fly off, posing a serious hazard to
other road users.<
Drive smoothly and avoid sudden
acceleration or braking. Do not corner
at high speeds.

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Overview
Controls and features
Operation, maintenance
Owner service procedures
Index Technical data
Mainte-

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To 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 convertible 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.<
Engine and differential>Up to 1,200 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 II
* (refer to
page 64): refrain from using driving
program 6 in the sequential mode
during the break-in period.
>Following the break-in inspection at
1,200 miles (2,000 km), you can
gradually increase engine or road
speeds.
Follow the same break-in procedure if
either the engine or the differential is
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 aquaplaning, or hydro-
planing, and can lead to partial or
complete loss of traction, vehicle
control and braking effectiveness.
Reduce your speed on wet roads.<
Brake systemApprox. 300 miles (500 km) must elapse
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 traffic
signal, for instance), provided that
traffic conditions permit to do so.
To avoid corrosion, repeat this proce-
dure from time to time.
The brake lamps do not come on
when the parking brake is
engaged.
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 Ð when
towing, for example Ð substantially
higher levels of pedal force will be
required to brake the vehicle.<ClutchThe clutch will also begin to function
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.
Break-in procedures

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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.
Aquaplaning: 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 aqua-
planing, or hydroplaning, and can lead
to partial or complete loss of traction,
vehicle control and braking effective-
ness.
Driving through water: do not drive
through water on the road if it is deeper
than 1 foot (30 cm), and then only at
walking speed. Otherwise the vehicle
can sustain damage to the engine, the
electrical systems and the transmis-
sion.<
The conceptThe Antilock Brake System (ABS) keeps
the wheels from locking while 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
maximum brake pressure ("panic
stop"). Since the vehicle maintains
steering responsiveness, you can
nevertheless avoid possible obstacles
with a minimum of steering effort.
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
during high lateral acceleration, or
when braking during a lane change,
vehicle stability is improved and
steering response is enhanced.
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.<
Driving notes Antilock Brake System Brake system

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Brake system Hardtop
*
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 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
engine speed range. For further infor-
mation, refer to page 75.
Do not coast with the clutch
depressed or with the gearshift
lever in idle position. Do not coast with
the engine shut 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.<
It is not necessary to remove the fabric
top even in the winter, when the
hardtop is generally in constant use.
But you can also remove it at any time
with no problem. Before the fabric top
is stored in the convertible top
compartment, it must be absolutely dry
in order to avoid water spot and mildew
from forming.
The hardtop offers reading lamps and
clothing hooks that can be used just by
pressing. In addition, a roof-rack
assembly is possible. In this regard,
please contact your BMW center.
When suspending articles of
clothing 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 maneuvers.<

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Hardtop
*
Two people are required for installation
or removal. Work with extreme caution
in order to avoid paint damage and
damage to the body or hardtop.
To facilitate hardtop installation or
removal, you can obtain a specially
designed hardtop lift
* or hardtop rack
*
at your BMW center.
Storage
Storing the hardtop on the floor:
Shove the styrofoam block that
came with the hardtop forward to its
center. The arrow on top of the styro-
foam block has to be pointing upward
when you are doing this.<
Installation1. Lower the side windows completely
and flip the sun visors down. If
necessary, remove the antenna rod
to avoid any damage
2. Open the convertible top compart-
ment lid slightly by pressing the
button for the convertible top opera-
tion, refer to page 41
3. Remove the trim pieces on both
sides by pulling them off toward the
back (arrow), and reclose the
convertible top compartment lid

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Hardtop
*
4. Open both front locking levers on the
hardtop by pressing the buttons
(arrow). The levers will release
slightly. Raise the levers as far as the
stop will allow
5. Before installing, first flip the cover
panels that are located underneath
the left and right interior lamps down.
To do this, press on the slight bump
on the cover panel. There is a holder
in the cover panel to securely store
the trim pieces 1 that have been
removed
6. Open the red release lever as far as
the stop will allow 2
7. Position the hardtop onto the
supports with the help of a second
person. Be sure to put the mountings
exactly into the proper brackets
Lift the hardtop carefully. Be
extremely careful not to shift the
seals. Seals that have been shifted out
of place or actually pulled out cause
leaks.<
8. In the back, close the red locking
levers by turning to the inside as far
as the stop located behind the trim
will allow. Flip the cover panels back
into place
9. To lock the hardtop in the front, keep
pressing on the front locking levers
until you hear it engage.
RemovalFollow the same procedure as when
installing, just reverse the steps.

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Information for your safetyThe factory-approved radial tires are
matched to the vehicle and have been
selected to provide optimum safety and
driving comfort on your vehicle.
It is not merely the tire's service life, but
also driving comfort and Ð above all else
Ð driving safety that depend on the
condition of the tires and the mainte-
nance of the specified tire pressure.
Incorrect inflation pressure is a frequent
cause of tire damage. It also signifi-
cantly influences the roadholding ability
of your BMW.
Check tire inflation pressures on a
regular basis (refer to page 24), at
least every two weeks and before every
long trip. If this is not done, incorrect
tire pressures can cause driving insta-
bility and tire damage, ultimately
resulting in accidents.<
Tire tread Ð tire damageInspect your tires frequently for tread
wear, signs of damage and for foreign
objects lodged in the tread. Check the
tread depth.
Tread depth should not be allowed to go
below 0.12 in (3 mm), even though the
legally specified minimum tread depth is
only 0.063 in (1.6 mm). Tread wear indi-
cators (arrow) are embedded in the base
of the tire's tread. Their locations are
indicated by the legend "TWI" Ð Tread
Wear Indicator Ð at various points on the
tire's shoulder. When the tread reaches a
depth of 0.063 in (1.6 mm), these indica-
tors appear to signal that the tires have
worn to the minimum legal level. Below
0.12 in (3 mm) tread depth, there is an
increased risk of aquaplaning, even at
relatively moderate speeds and with only
small amounts of water on the road.
Do not drive on a deflated (flat) tire.
A flat tire greatly impairs steering
and braking response, and can lead to
complete loss of control over the
vehicle.
Avoid overloading the vehicle so that the
permitted load on the tires is not
exceeded. Overloading can lead to
overheating and increases the rate at
which damage develops inside the tires.
You could have a blowout as a result.
Unusual vibrations encountered during
normal vehicle operation can indicate
tire failure or some other vehicle defect.
The type of problem can be caused by
contact with curbs, etc. This is also true
for irregularities in the vehicle's handling
characteristics, such as a pronounced
tendency to pull to the left or right.
Should this occur, respond by immedi-
ately reducing your speed. Proceed
carefully to the nearest BMW center or
professional tire center, or have the
vehicle towed in to have it and its wheels
and tires inspected.
Tire damage (up to and including blow-
outs) can endanger the lives of both the
vehicle occupants and other road
users.<
Tire inflation pressure Tire condition

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DOT Quality GradesTreadwear
Traction AA A B C
Temperature A B C
All passenger vehicle tires must
conform to Federal Safety
Requirements in addition to these
grades.<TreadwearThe treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.
For example, a tire graded 150 would
wear one and one-half (1 g) times as
well on the government course as a tire
graded 100. The relative performance
of tires depends upon the actual condi-
tions of their use, however, and may
depart significantly from the norm due
to variations in driving habits, service
practices and differences in road char-
acteristics and climate.
TractionThe traction grades, from highest to
lowest, are AA, A, B, and C.
Those grades represent the tire's ability
to stop on wet pavement as measured
under controlled conditions on speci-
fied government test surfaces of
asphalt and concrete. A tire marked C
may have poor traction performance.
The traction grade assigned to
this tire is based on straight-
ahead braking traction tests, and does
not include acceleration, cornering,
hydroplaning, or peak traction charac-
teristics.< TemperatureThe temperature grades are A (the
highest), B, and C, representing the
tire's resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause
the material of the tire to degenerate
and reduce tire life, and excessive
temperature can lead to sudden tire
failure. The grade C corresponds to a
level of performance which all
passenger vehicle tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A
represent higher levels of performance
on the laboratory test wheel than the
minimum required by law.
The temperature grade for this tire
is established for a tire that is
properly inflated and not overloaded.
Excessive speed, under-inflation, or
excessive loading, either separately or
in combination, can cause heat buildup
and possible tire failure.< Uniform Tire Quality Grading Quality grades can be found where
applicable on the tire sidewall between
tread shoulder and maximum section
width. For example:
Treadwear 200 Traction AA
Temperature A
Tire replacement