2003 BMW M3 COUPE tire type

109 Wheels and tires
Tire inflation pressureInformation for your safetyThe factory-approved tires are matched
to your vehicle and have been selected
to provide optimum safety and driving
comfort when used properly.
It is not merely the tire's service life, but
also driving comfort and – above all else
– driving safety that depend on the con-
dition of the tires and the maintenance
of the specified tire pressure.
Incorrect tire inflation pressure is
a frequent cause of tire damage. It
also significantly influences the road-
holding ability of your BMW. Check tire
inflation pressures on a regular basis,
refer to page 25, at least every two
weeks and before beginning a longer
trip. Incorrect tire pressure can other-
wise lead to driving instability, tire dam-
age and accidents.<
Tire conditionTire tread – 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 1/8 in / 3 mm, even though
the legally specified minimum tread
depth is only 1/16 in / 1.6 mm.
Below 1/8 in / 3 mm tread depth, there
is a great risk of hydroplaning, even at
relatively moderate speeds and with
only small amounts of water on the
road. Tread wear indicators in the
tread-groove base – see arrow – are
distributed around the wheel circumfer-
ence and are labeled on the tire side-
wall with TWI – Tread Wear Indicator. At
a tread depth of 1/16 in / 1.6 mm, the
indicators signal that the legally permis-
sible wear limit has been reached.
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.
You could have a blowout as a result.
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-
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112
Wheel and tire combinationsThe right choice
BMW recommends using only
wheels and tires that have been
approved by BMW for your particular
vehicle model, as otherwise body con-
tact and serious accidents can result
despite the use of the same nominal
size, e.g. due to manufacturing toler-
ances. 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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Everything from A to Z
151
CHECK FILLER CAP
indicator lamp 19
Checking coolant level 120
Checking oil level 116, 118
Child seat 55
Child-restraint systems 55
Cigarette lighter 98
Cleaning windshield 72
Clock 77
refer also to the radio or
onboard computer
Owner's Manual
Clothes hooks 99
Cockpit 14
Code, tires 112
Coin box 96
Compression ratio 144
Computer 78
Condensation, removing
from windows 92
Configure personal settings
Vehicle Memory, Key
Memory 59
Consumption
display 75
fuel 79
Coolant 116, 120, 147
indicator lamp 19
Cooling system 147
Copyright 4Cornering Brake Control
(CBC) 107
indicator lamp 19
Cruise control 72
indicator lamp 20
Cup holder, see Beverage
holder 96
Curb weight 146
Cushion height 145
D
Data
dimensions 145
engine 144
weights 146
Daytime driving lamps 86
DBC Dynamic Brake
Control 82
warning lamp 19
Defrost position 92
Defrosting
rear window 93
windows 92
Digital clock 77
Dimensions 145
Dipstick, engine oil 118
Disc brakes 108
Displacement 144
Display lighting 87
Displays 16
Distance warning 80
Divided rear backrest 100Door key 30
Door lock buttons 34
Doors
emergency operation 33
manual operation 33
remote control 31
unlocking and locking
31, 33
Drivelogic 68
Driving notes
braking 107
disc brakes 108
general 107
hydroplaning 107
DSC Dynamic Stability Con-
trol 81
indicator lamp 19
Dynamic Brake Control
(DBC) 82
warning lamps 19
Dynamic Stability Control
(DSC) 81
indicator lamp 19
E
Electric power windows 40
Electrical accessories, fail-
ure 138
Electrical malfunction
doors 33
fuel filler door 24
sliding/tilt sunroof 42Emergency operation
doors 33
fuel filler door 24
sliding/tilt sunroof 42
Emergency release
luggage compartment
lid 37
Engine
displacement 144
output 144
starting 61
switching off 63
torque 144
Engine compartment 116
Engine coolant 147
refilling 120
temperature gauge 75
Engine data 144
Engine electronics
warning lamp 19
Engine oil
adding 116, 118
capacity 147
consumption 118
quality 119
types 119
viscosity 119
Engine oil level
indicator lamp 19
warning lamp 18
Engine oil pressure
warning lamp 18
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Everything from A to Z
153
Leather care, refer to the
Caring for your vehicle
brochure
Length 145
License plate lamp
replacing bulb 133
Light switch 86
Lighter 98
Lighting, see Lamps
LIGHTS ON warning 86
Load-securing devices 102
Lock, steering wheel 60
Low beams 86
bulb replacement 129
Luggage compartment 35
capacity 146
floor mat 38
floor panel 37
manual operation 35
Luggage compartment lid 35
emergency release 37
manual operation 35
opening from the inside 36
remote control 32
securing separately 35
Luggage compartment light-
ing 35
Luggage rack 103
Lumbar support 45M
M Engine dynamics
control 85
M Mobility system 133
M+S tires 112
Maintenance 76, 122
Malfunction displays 76
Manual transmission 64
Master keys 30
with remote control 30
Memory 49, 59
Microfilter 94
Microphone 97
Mirror defrosting 51
Mirror memory 49
Mirrors 51
automatic curb monitor 50
inside rearview 52
outside 51
Mobility system 133
Modifications, technical 5
Multifunction switch 70
N
Navigation system, refer to
the separate Owner's
Manual
Neckrest 46
O
OBD interface socket 124Obstruction protection
power windows 40
sliding/tilt sunroof 41
Odometer 74
Oil
capacity 147
dipstick 118
quality 119
viscosity 119
Oil additives 119
Oil change interval, refer to
Service and Warranty
Information Booklet for US
models / Warranty and
Service Guide Booklet for
Canadian models
Oil filter change 147
Oil level
checking 118
indicator lamp 19
warning lamp 18
Oil pressure
warning lamp 18
OIL SERVICE 76
Oil types 119
Onboard computer, refer to
Owner's Manual for
Onboard Computer
Onboard tool kit 128Opening and closing
from inside 34
via remote control 31
via the door lock 33
Operating elements 14
Outlets, ventilation 90
Outside temperature dis-
play 78
P
Paintwork care, refer to the
Caring for your vehicle
brochure
Panic mode, trigger
alarm 32
Park Distance Control
(PDC) 80
Parking aid 80
Parking brake 63
Parking lamps 86
PDC Park Distance
Control 80
Pollen 94
Power output 144
Power seat 45
Pressure, tires 25, 109
R
Radiator 147
Radio navigation, refer to
the Owner's Manual for
Radio 79
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