tires BMW M3 CONVERTIBLE 2003 E46 User Guide

116
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 replacementDOT 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.
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.
Tire condition
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117
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 ATire ageThe date on which the tire was manu-
factured is indicated by the code on the
sidewall:
DOT ... 3502 indicates that the tire was
manufactured in week 35 of the year
2002.
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 changesFollowing wheel and/or tire changes
you will need to reinitialize both the Flat
Tire Monitor and the sequential M gear-
box SMG II, refer to pages 75, 89.
Tire replacement
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118
Wheel and tire combinationsThe right choice
BMW recommends using only
wheels and tires that have been
approved by BMW for use on your par-
ticular model. Although other wheels
and tires may theoretically have the
same dimensions, variations in factors
such as manufacturing tolerances can
result in contact between tire and body-
work, ultimately leading to serious acci-
dents. If non-approved wheels and tires
are used, BMW cannot evaluate their
suitability, and therefore cannot be held
liable for driving safety.<
BMW tests certain tire brands for each
tire size, classifies them as road-safe
and approves them. Consult your BMW
center for more information. Observe
any country-specific regulations, e.g.
on making a corresponding entry in the
vehicle documents.
The correct wheel and tire combi-
nation affects different systems
such as ABS, DSC, Flat Tire Monitor.
The function of these systems is
impaired if improper wheel and tire
combinations are used.
Therefore, only use tires of the same
brand and same tread configuration on
the vehicle and, for example following a
tire failure, restore the approved wheel
and tire combination as soon as possi-
ble.<
The use of rims and lug bolts that
do not meet the specifications of
the original factory-installed equipment
will affect the safe operation of your
vehicle and may cause an accident and
personal injury.
Never mix tires of different design, such
as steel-belted radials with radial bias-
belted or bias-ply tires, etc. Mixing tire
types will adversely affect roadholding
and can lead to loss of vehicle con-
trol.<
StorageStore wheels and tires in a cool, dry
place, protecting them against light
whenever possible. Protect the tires
against contact with oil, grease and
fuel.
Winter tiresChoosing the right tireBMW recommends winter tires – M+S
tires – for operation under inclement
winter driving conditions. While all-sea-
son tires – M+S designation – provide
better winter traction than the corre-
sponding summer tires, they generally
do not achieve the performance of win-
ter 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.<
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119
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 depth below approx. 3/16 in /
4 mm, their 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 SMG II, refer to page 89.
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 88.<
Winter tires
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139
License plate lamps5 watt bulb
1. Place a screwdriver in the slot and
press toward the left – see arrow – to
release the lens
2. Replace the bulb.
Repairing a flat tire
Precautions in case of a flat tire:
Stop the vehicle as far as possible
from passing traffic; switch on the haz-
ard warning flashers.
Turn the steering wheel to the straight-
ahead position and engage the steering
lock. Shift into 1st or reverse 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 necessary, set up your warning trian-
gle or portable hazard warning lamp on
the roadside at an appropriate distance
from the rear of the vehicle. Comply
with all safety guidelines and regula-
tions.<
M Mobility systemYou will find an M Mobility system in
your BMW M3 convertible for repairing
flat tires. With this system you can
apply a sealing liquid to the inside of
the tire that seals off the damaged point
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.
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
>This is part of the M Mobility system,
refer to page 140
>Filling with sealant, refer to page 141
>Distributing sealant, refer to
page 141
>Inflating tire to correct pressure, refer
to page 142.
Lamps and bulbs
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Everything from A to Z
157
Cleaning position, convert-
ible top 45
Cleaning windshield 78
Clock 83
refer also to the radio or
onboard computer
Owner's Manual
Cockpit 14
Code, tires 118
Coin box 102
Compression ratio 150
Computer 84
Condensation, removing
from windows 98
Configure personal settings
Vehicle Memory, Key
Memory 65
Consumption
display 81
fuel 85
Convertible top
cleaning position 45
electrical malfunction 44
emergency operation 44
opening and closing 42
Convertible top operation
fully automatic convertible
top 41
Coolant 122, 126, 153
indicator lamp 19
Cooling system 153
Copyright 4Cornering Brake Control
(CBC) 111
Cruise control 78
indicator lamp 20
Cup holder, see Beverage
holder 102
Curb weight 152
Cushion height 151
D
Data
dimensions 151
engine 150
weights 152
Daytime driving lamps 92
DBC Dynamic Brake
Control 88
warning lamp 19
Defrost position 98
Defrosting rear window 99
Defrosting windows 98
Digital clock 83
Dimensions 151
Dipstick, engine oil 124
Disc brakes 112
Displacement 150
Display lighting 93
Displays 16
Distance warning 86
Door key 30
Door lock buttons 34Doors
emergency operation 33
manual operation 33
remote control 31
unlocking and locking
31, 33
Drivelogic 74
Driving notes
braking 111
disc brakes 112
general 111
hydroplaning 111
DSC Dynamic Stability Con-
trol 87
indicator lamp 19
Dynamic Brake Control
(DBC) 88
Dynamic Stability Control
(DSC) 87
indicator lamp 19
E
Electric malfunction
doors 33
Electric power windows 40
Electrical accessories, fail-
ure 144
Electrical malfunction
convertible top 44
fuel filler door 24Emergency operation
doors 33
fuel filler door 24
Emergency release
luggage compartment
lid 36
Engine
displacement 150
output 150
starting 67
switching off 69
torque 150
Engine compartment 122
Engine coolant 153
refilling 126
temperature gauge 81
Engine data 150
Engine electronics
warning lamp 19
Engine oil
adding 122, 124
capacity 153
consumption 124
dipstick 124
quality 125
types 125
viscosity 125
Engine oil level
check 122
indicator lamp 19
warning lamp 18
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Everything from A to Z
159
LATCH child-restraint
mounting system 62
Leather care, refer to the
Caring for your vehicle
brochure
Length 151
License plate lamp
replacing bulb 139
Light switch 92
Lighter 102
Lighting, see lamps
LIGHTS ON warning 92
Load-securing devices 106
Lock, steering wheel 66
Low beams 92
bulb replacement 135
Luggage compartment
35, 37
capacity 152
floor panel 37
increase volume 37
Luggage compartment lid 35
emergency release 36
manual operation 35
opening from the inside 35
remote control 32
securing separately 35
Luggage compartment light-
ing 35
Luggage rack 107
Lumbar support 50M
M Engine dynamics
control 91
M Mobility system 139
M+S tires 118
Maintenance 82, 128
Malfunction displays 82
Manual operation
convertible top 44
Manual transmission 70
Master keys 30
with remote control 30
Memory 53, 65
Microfilter 100
Microphone 102
Mirror defrosting 55
Mirror memory 53
Mirrors 55
automatic curb monitor 54
inside rearview 56
outside 55
Mobility system 139
Modifications, technical 5
Mounting the roof rack 113
Multifunction switch 76
N
Navigation system, refer to
Owner's Manual for
Onboard Computer
Neckrest 50O
OBD interface socket 130
Odometer 80
Oil
additives 125
capacity 153
quality 125
viscosity 125
Oil change interval, see Ser-
vice and Warranty Infor-
mation Booklet for US
models / Warranty and
Service Guide Booklet for
Canadian models
Oil filter change 153
Oil level
checking 124
indicator lamp 19
warning lamp 18
Oil pressure
warning lamp 18
OIL SERVICE 82
Oil types 125
Onboard computer, refer to
the Owner's Manual for
Onboard Computer
Onboard tool kit 134
Opening and closing
from inside 34
via remote control 31
via the door lock 33
Operating elements 14Outlets, ventilation 96
Outside temperature dis-
play 84
P
Paintwork care, refer to the
Caring for your vehicle
brochure
Panic mode, trigger
alarm 32
Park Distance Control
(PDC) 86
Parking aid 86
Parking brake 69
Parking lamps 92
PDC Park Distance
Control 86
Pollen 100
Power output 150
Power seat 49
Pressure, tires 25, 115
R
Radiator 153
Radio navigation, refer to
Owner's Manual for
Radio 85
Radio, refer to the Owner's
Manual for Radio
Rain sensor 77
Range 85
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Everything from A to ZReading lamps
front 94
rear 95
Rear lamps 137
Rear window defroster 99
Rear-entry assist 51
Rearview mirror 55
Recirculated-air mode 99
Refueling 24
Remote control 31
Remote key 30
Replacement key 30, 31
Reporting safety defects 6
Reserve indicator lamp 81
Restraint system 59
Reverse 70
Rims 118
Rollover protection
system 63
indicator lamp 19
lowering 63
Roof load capacity 152
Roof-mounted luggage
rack 107
S
Safe seating position 48
Safety belts 52
seat-integrated belt sys-
tem (SGS) 51
Seat
rear-entry assist 51Seat adjustment 48, 49
lumbar support 49, 50
power seats 49
Seat heating 54
Seat memory 53
Securing cargo 106
Securing child-restraint sys-
tem 61
Securing devices 107
Sequential M gearbox
SMG II 71
indicator lamp 19, 75
Service and Warranty Infor-
mation Booklet 128
SERVICE ENGINE SOON
warning lamp 19
Service interval display
82, 128
Set clock 83
Side airbags 57
Side turn signals
bulb replacement 136
Size 151
Ski bag 104
SMG gearbox 71
Snow chains 119
Socket 103
Spare key 30
Speedometer 16
Sport mode 91
Standing lamps 93
bulb replacement 135Starting problems 67
Starting the engine 67
Steering wheel lock 66
Steering wheel with multi-
function buttons 22
Steering wheel, adjusting 55
Storage compartments 101
Stroke 150
Summer tires 118
Surface ice warning 84
Switching off the engine 69
Symbols used 4
T
Tachometer 16, 80
Tail lamp assembly
replacing bulb 137
Tail lamps 137
replacing bulb 137
Tank capacity 153
Technical data 150
Technical modifications 5
Telephone hookup 102
Telephone, refer to the sep-
arate Owner's Manual
Temperature adjustment 98
Temperature display
engine coolant 81
ice warning 84
interior temperature 98
outside temperature 84
Temperature gauge 80Temperature layering 99
Thigh support area, adjust-
ing 49
Third brake lamp 138
Tilt alarm
deactivate 32, 39
Tilt alarm sensor
remote control 32
Time 83
Tire code 118
Tire damage 115
Tire inflation pressure
25, 115
checking 25
Tire pressure monitor
(TPM) 88
Tire replacement 116
Tire tread 115
Tools 134
Torque 150
Towing eyelet 146
Towing the vehicle 146
Track 151
Transmission 70
Transporting children
safely 59
Tread depth, tires 115
Tread wear indicator 115
Trip odometer 80
Trunk, see Luggage com-
partment 35, 152
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Everything from A to Z
161
Trunk lid, see Luggage com-
partment lid 35
Turn signal indicator 76
indicator lamps 20
replacing bulb 136
Turning circle 151
U
Uniform Tire Quality
Grading 117
Upholstery care, refer to the
Caring for your vehicle
brochure
Used batteries 143
V
Vacuum cleaner, connect-
ing 103
Variable pre-warning
zone 80
Vehicle
break-in procedures 110
starting 67
switching off 69
Vehicle battery 143
Vehicle Memory 65
Vehicle weight 152
Ventilation 96
draft-free 99
Viscosity 125W
Warning lamp Please fasten
safety belts 18
Warning lamps 18
Warning messages 82
Warranty and Service Guide
Booklet 128
Warranty, refer also to sepa-
rate booklet 6
Washer fluid
adding 124, 153
indicator lamp 19
Washer/wiper system 77
Washing vehicle, refer to the
Caring for your vehicle
brochure
Water on roadways
deep water 111
Wear indicator for tires 115
Weights 152
Wheelbase 151
Wheels and tires 118
Wheelslip control, see
DSC 87
Width 151
Wind deflector 46
Window condensation,
removing 98
Windows
convenience operation 33
defrosting 98Windshield washer reservoir
filling 124, 153
Windshield wiper blades,
replacing 134
Windshield wipers 77
Winter tires 118
Wiper blades, replacing 134
Work in the engine compart-
ment 120
X
Xenon lamps 135
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Refueling
To ensure that you always have conve-
nient access to all essential information
when you stop for fuel, we recommend
that you take the time to fill out the
adjoining chart by entering the data that
apply to your vehicle. Consult the index
for individual specifications.
FuelPlease enter your preferred fuel here.Engine oilThe oil quantity between the two marks
on the dipstick is approx.
1.4 US quarts/1.3 liters.Tire inflation pressureDesignation
Quality
Summer tires Winter tires
front rear front rear
Up to 2 persons
4 persons plus luggage
handbook.book Page 165 Tuesday, July 30, 2002 9:28 AM