change wheel BMW M3 CONVERTIBLE 2004 E46 Owner's Manual

71
Display in instrument clusterThe selector lever position, currently
engaged gear and selected driving pro-
gram are displayed in the instrument
cluster.
1Engaged gear
2Selected driving program, corre-
sponds to the number of illuminated
fields, refer to page 73
3Tapping the selector lever to the right
switches over into the displayed shift
mode
4'D' indicates an activated automated
shift mode
R – Reverse position Only engage with the vehicle stopped
or at low speed, e.g. for rocking free in
deep snow.
An intermittent signal tone indi-
cates that the reverse position has
been engaged. engine.
If the driving situation requires, e.g.
when downshifting on slippery roads,
the SMG Drivelogic automatically dis-
engages and reengages the clutch, i.e.
it is not necessary to manually engage
position N.S – Sequential modeIn the sequential mode all forward
gears are to be shifted by the driver.
To switch from automated to sequential
mode:
>Tap the selector lever to the right
toward 'S' or
>change gears with the selector lever
or the shift paddles on the steering
wheel.
You do not need to reduce the throttle
for shifting.
Sequential M gearbox with Drivelogic*
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74
Indicator lamp
The gearbox indicator lamp in
the instrument cluster goes out
after the engine is started.
>If it does not go out, or if it lights up
during driving, a malfunction has
occurred. The available functions
may be limited under certain circum-
stances.
Drive carefully and with the Dynamic
Stability Control (DSC) activated.
Have the system checked by the
nearest BMW center
>If the indicator lamp flashes while
driving, the system is overloaded.
Avoid high loads until the indicator
lamp goes out again permanently.
Shift lightsTo achieve the best possible vehicle
acceleration with a sporty driving style
in the sequential mode, shift lights in
the instrument cluster indicate the opti-
mum shifting point shortly before the
maximum engine speed is reached.
1. When the maximum engine speed is
approached, yellow indicator fields –
shift lights – in the tachometer light
up consecutively to indicate the
approaching upshift time
2. Shift at the latest when the last indi-
cator field lights up red.
Tire replacement, snow chainsFollowing a tire or wheel change and
after mounting or removing snow
chains, the slip recognition of the
SMG Drivelogic must become familiar
with the changed condition.
Reinitialize the system afterwards:
1. Move the selector lever into
position N on a straight stretch of
road at a speed of over 20 mph /
30 km/h
2. Pull both shift paddles for approx.
two seconds.
If you do not carry out the initialization,
the system automatically learns the
changed condition gradually during
driving. This can become apparent due
to brief opening and closing of the
clutch.
Sequential M gearbox with Drivelogic*

88
System limitations
The Flat Tire Monitor cannot pro-
vide you with advance warning of
sudden and severe tire damage caused
by external factors and does not detect
the balanced and very gradual pressure
loss that takes place in all four tires
over an extended period of time.<
On the other hand, the following situa-
tions can lead to a delayed detection of
pressure loss and even to the system
not functioning:
>Driving on snow-covered or slippery
roads
>Performance-oriented driving: slip at
the drive wheels, high levels of lateral
acceleration
>When driving with snow chains, false
warnings and undetected pressure
losses may occur.
Initializing the system
Each time you correct the pres-
sure in a tire, or change a wheel or
tire, reinitialize the system immediately
afterwards. This requires a bit of driv-
ing.<
1. Before driving off, start the engine
but do not start driving
2. Press the button as long as you need
to until the yellow indicator lamp in
the instrument cluster lights up for a
few seconds
3. Drive off.
It takes a few minutes before the Flat
Tire Monitor can detect a flat tire and
issue a warning.
When driving with snow chains,
do not initialize the system.<
Flat Tire Monitor

114
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 ABS system if you apply maximum
pedal pressure – panic stop. Since the
vehicle maintains steering responsive-
ness, you can avoid possible obstacles
with a minimum of steering effort,
despite the full brake application.
Pulsation at the brake pedal combined
with sounds from the hydraulic circuits
indicates to the driver that ABS is in its
active mode.Dynamic Brake Control (DBC)DBC is included in the DSC, refer to
page 86.
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 devel-
opment of ABS. When braking during
cornering with high lateral accelera-
tion, or when braking during a lane
change, vehicle stability is improved
and the 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 autho-
rized BMW center. Higher brake
application pressure may be necessary
when stopping, 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. with the vehicle parked or in storage,
and operating conditions in which brak-
ing is restricted to gentle, low-pressure
applications will all increase the ten-
dency for corrosion to form on the
rotors; this is often accompanied by a
simultaneous accumulation of contami-
nation on the brake pads. The pads
must exert a certain minimal level of
pressure against the rotors for the disc
brakes' inherent self-cleaning effect to
remain effective.

119
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 internal tire damage.
This can result in a sudden loss of tire
inflation pressure.
Unusual vibrations encountered during
normal vehicle operation can indicate
tire failure or some other vehicle defect.
This type of problem can be caused by
contact with curbs, etc. This is also true
for irregularities in the vehicle's han-
dling characteristics, such as a pro-
nounced tendency to pull to the left or
right. Should this occur, respond by
immediately reducing your speed. Pro-
ceed carefully to the nearest BMW cen-
ter or professional tire center, or have
the vehicle towed in to have it, its
wheels or its tires inspected.
Tire damage, up to and including blow-
outs, can endanger the lives of both the
vehicle occupants and other road
users.<
Tire replacementTo maintain good handling characteris-
tics, only use a full set of tires of the
same brand and tread configuration.
Comply with the specified tire inflation
pressures, and be sure to have the
wheel and tire assembly balanced
every time you change a tire or wheel.DOT quality grades>Treadwear
>Traction AA A B C
>Temperature A B C
All passenger car tires must con-
form to Federal Safety Require-
ments in addition to these grades. 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
1/2 – 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. 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.
Tire condition
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120
Sustained high temperature can cause
the material of the tire to degenerate
and reduce tire life, and excessive tem-
perature can lead to sudden tire failure.
The grade C corresponds to a level of
performance which all passenger car
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. applicable on the tire sidewall between
tread shoulder and maximum section
width. For example:
Treadwear 200 Traction AA
Temperature A
Tire ageThe date on which the tire was manu-
factured is indicated by the code on the
sidewall:
DOT ... 3603 indicates that the tire was
manufactured in week 36 of the year
2003.
BMW recommends the replacement of
all tires when the tires are no more than
6 years old, even if a tire life of 10 years
is possible.Following wheel/tire changesComply with the specified tire inflation
pressures, and be sure to have the
wheel and tire assembly balanced
every time you change a tire or wheel.
Following wheel and/or tire changes
you will need to reinitialize both the
sequential M gearbox with Drivelogic
and the Flat Tire Monitor, refer to
pages 74, 88.
Tire replacement

122
Winter tiresChoosing the right tireBMW recommends the use of winter
tires for operation under winter road
conditions. While all-season tires – with
M+S designation – provide better winter
traction than the corresponding sum-
mer tires, they generally do not achieve
the performance of winter tires.
In the interest of safe tracking and
steering response, install radial tires
made by the same manufacturer and
with the same tread configuration on all
four wheels if you elect to mount winter
tires.
When mounting winter wheels,
observe the different recesses of
the front and rear wheels, as otherwise
damage may result.<
Do not exceed specified
maximum speeds
Never exceed the maximum
speed for which the winter tires
are rated.
Unprofessional attempts by laymen to
service tires can lead to damage and
accidents.
Have this work performed by skilled
professionals only. Your BMW center
will be glad to assist you with both their
expertise and the proper equipment for
your vehicle.<
Tire condition, tire pressureAt tread depths below approx. 3/16 in /
4 mm, tire performance under winter
driving conditions deteriorates notice-
ably. Worn tires should therefore be
replaced for safety considerations.
Comply with the specified tire inflation
pressures, and be sure to have the
wheel and tire assembly balanced
every time you change a tire or wheel.
Snow chains*Only certain snow chains have been
tested by BMW and determined and
approved as roadworthy. Consult your
BMW center for more information.
BMW recommends using only these
approved fine-link snow chains. Use
them in pairs on winter tires, but only on
both rear wheels.
Comply with all manufacturer's safety
precautions when mounting the chains.
Do not exceed a speed of 30 mph /
50 km/h with snow chains.
After mounting or removing snow
chains, always reinitialize the sequential
M gearbox with Drivelogic, refer to
page 88.
It is not possible to mount snow
chains on tires with 18- and 19-
inch wheels.
Deactivate the Flat Tire Monitor when
using snow chains. Malfunction warn-
ings and undetected losses in pressure
are a possibility when driving with snow
chains.
For additional information, refer to
page 87.<

141
Using the M Mobility systemTo repair a flat tire using the M Mobility
system, proceed as follows:
>Preparing the M Mobility system for
use, refer to the next column
>Components of the M Mobility sys-
tem, refer to page 142
>Filling with sealant, refer to page 142
>Distributing sealant, refer to
page 143
>Inflating tire to correct pressure, refer
to page 143.
Preparing the M Mobility system
for useThe M Mobility system is located in the
luggage compartment under the floor
panel:
1. Lift the floor panel
2. Loosen the M Mobility system from
its storage location.
Before you use the M Mobility sys-
tem, read the warnings and dan-
ger notices on the device carefully.<
If possible, leave the foreign object in
the tire.
Pull off the sticker 5, refer to the second
column below, for the speed limit and
apply it to the steering wheel.
Please keep in mind that the fluids
bottle in the system's sealant con-
tainer has to be changed every 3 years
by your BMW center, if the unit has not
been used.<
Repairing a flat tire
OverviewControlsMaintenanceRepairsDataIndex

Everything from A to Z
161
Brake force display 90
Brake hydraulics 114
Brake lamps
bulb replacement 139
indicator lamp, defective
lamp 81
Brake lights
brake force display 90
Brake pads 115
brake fluid level
18, 114, 129
breaking in 112
disc brakes 114
Brake rotors
brake system 114
breaking in 112
Brake system
brake pads, indicator
lamp 19
Brake wear warning
indicator lamp 19
Brakes
ABS 114
brake fluid 129
breaking in 112
indicator/warning lamp
18, 19
parking brake 68
Break-in procedures 112
Bulb replacement 137
Bulb replacement, refer to
Lamps and bulbs 137Buttons in steering wheel 22
C
California Proposition
65 warning 132
Can holders, see Beverage
holders 102
Capacities 157
Car battery 144
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 102
Car telephone, refer to the
separate Owner's Manual
Car vacuum cleaner, con-
necting 103
Car wash, refer to the Caring
for your vehicle brochure
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 114
warning lamp 19CD 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 102
Center armrest
front 101
Center high-mount brake
lamp
bulb replacement 140
Central locking system 30
button 34
passenger
compartment 34
Check Control 81
Check Gas Cap
indicator lamp 19
Child seats, refer to Child-
restraint systems 58
Child-restraint mounting
system LATCH 60
Child-restraint systems 58
Cigarette lighter 103
Cigarette lighter socket 103
Cleaning chrome parts, refer
to the Caring for your vehi-
cle brochure
Cleaning light alloy wheels,
refer to the Caring for your
vehicle brochureCleaning position, convert-
ible top 44
Cleaning the vehicle, refer to
the Caring for your vehicle
brochure
Cleaning windshield 77
Clock 82
12-/24-hour mode 82
setting, refer also to the
Owner's Manual for
Radio/Onboard Computer
Closing
from inside 34
from outside 31
Clothes hooks 113
Clutch
breaking in 113
Cockpit 14
Code, refer to the Owner's
Manual for Radio/Onboard
Computer
Coin box 102
Cold start, refer to Starting
the engine 66
Compact disc operation,
refer to the Owner's Man-
ual for Radio/Onboard
Computer
Compression ratio, refer to
Engine data 154
Computer 83
OverviewControlsMaintenanceRepairsDataIndex

Everything from A to ZMD operation, refer to the
Owner's Manual for
Radio/Onboard Computer
Memory, refer to Seat and
mirror memory 51
Memory, refer to Vehicle
Memory, Key Memory 64
Microfilter
automatic climate
control 100
Microphone, refer to Cellular
phone 102
Mini disc operation, refer to
the Owner's Manual for
Radio/Onboard Computer
Mirrors 53
automatic curb monitor 52
heated 53
memory, refer to Seat and
mirror memory 51
Mobile Service 146
Mobility system 140
Modifications, technical,
refer to For your own
safety 5
Multifunction steering
wheel 22
Multifunction switch
turn signal indicator/head-
lamp flasher 75
washer/wiper system 76N
Navigation system, refer to
the Owner's Manual for
Radio/Onboard Computer
Neck restraints, refer to
Head restraints 48
Nets 101
Nozzles, refer to
Ventilation 96
Nylon rope, refer to Towing
the vehicle 149
O
OBD interface socket 132
Odometer 79
Oil
additives, refer to Adding
engine oil 127
alternative oils 127
capacity 157
dipstick 126
quality 127
specified engine oils 127
Oil change interval, refer
to Service interval
display 130
Oil change intervals, refer to
the Service and Warranty
Information Booklet for US
models / Warranty and
Service Guide Booklet for
Canadian modelsOil filter change 157
Oil level
checking 126
indicator lamp 18
Oil pressure
indicator lamp 18
OIL SERVICE 81
Oil temperature 79
Oil types 127
Old batteries, refer to Dis-
posal 144
Onboard computer 83
Onboard computer, refer
also to the Owner's Man-
ual for Onboard Computer
Onboard tool kit 136
Opening and closing
from inside 34
from outside 31
via door lock 33
via remote control 31
Outlets, ventilation 96
Outside temperature dis-
play 83
changing unit of
measure 83
P
Paintwork care, refer to the
Caring for your vehicle
brochurePark Distance Control
(PDC) 85
Parking aid, refer to Park
Distance Control (PDC) 85
Parking brake 68
indicator lamp 18
Parking lamps 91
bulb replacement 137
Parking lamps/Low
beams 91
Parts and accessories, refer
to Your individual vehicle 5
Passenger-side exterior mir-
ror tilt function 52
PDC Park Distance
Control 85
Plastic, refer to the Caring
for your vehicle brochure
Please fasten safety belts
indicator lamp 18
Pollen, refer to Microfilter/
activated-charcoal
filter 100
Power output, refer to
Engine data 154
Power seat 47
Power socket, cigarette
lighter 103
Power windows
electric 38
Pressure monitoring, tires
Flat Tire Monitor 87