2004 BMW M3 CONVERTIBLE tire size

26
Check the tire pressures on a reg-
ular basis – at least twice a month
– and before every extended journey. If
this is not done, incorrect tire pressures
can cause driving instability and tire
damage, ultimately resulting in acci-
dents.<
Comply with tire approval
specificationsThe inflation pressures in the table
apply to BMW-approved tire sizes and
tire manufacturers. Your BMW center
will be glad to supply this information.
Other pressures may be required for
tires made by other manufacturers.
Your vehicle is equipped with tires
which not only meet US standards, but
also European standards. We recom-
mend the exclusive use of BMW
approved tires.Tire inflation pressure

50
The seat can be locked into posi-
tion when it is tilted forward. This
is particularly convenient when entering
the vehicle on an incline, for example.
Press against the backrest until you
hear it snap into place. Lever 1 does
not have to be released to fold the seat
back.<
Lock both backrests while driving,
otherwise there is a danger of an
unexpected movement causing an
accident.<
The indicator lamp in the instru-
ment cluster flashes when the
backrest is not locked, refer to
page 18.
Safety beltsAlways wear your safety beltAlways fasten your safety belt before
starting off. As supplemental restraint
devices, the airbags are designed to
enhance the effectiveness of the safety
belts, and not to replace them.
Before putting your safety belts on
in the rear, take them out of the
holder.<
Leave the rear safety belts in the
holders if they are not needed, in
order to avoid unwanted movement
from the safety belts at high speeds. the belt buckle.
To release1. Press the red button in the belt
buckle
2. Hold the belt
3. Guide the belt back into its reel.Safety belt heightThe front safety belt automatically
adapts to your body size via the setting
of the head restraint height, refer to
page 48.
If the safety belt system has been
subjected to the stresses involved
in an accident or otherwise damaged:
have the entire safety belt mechanism
replaced by your BMW center, includ-
ing the safety belt tensioner. In addi-
tion, have your BMW center inspect the
safety belt anchors. If a child-restraint
system was in the vehicle during an
accident, consult the manufacturer's
instructions regarding replacement.<
Entering the rear

121
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.<
StorageAlways store tires in a cool, dry place.
Store them away from light whenever
possible. Protect the tires against con-
tact with oil, grease and fuel.
Do not exceed the maximum tire infla-
tion pressures specified on the tire
sidewall.
OverviewControlsMaintenanceRepairsDataIndex

Everything from A to Z
167
Pressure, tires 25, 118
inflating with Mobility sys-
tem 143
Protective function
electric power windows 39
R
Radio remote control key,
refer to Master key with
remote control 30
Radio, refer to the Owner's
Manual for Radio
Rain sensor 76
Raising the floor panel 37
Range 84
Reading lamps
rear 94
Rear lamps
bulb replacement 139
indicator lamp, defective
lamp 81
Rear window heating
automatic climate
control 99
Rear-entry assist 49
Rearview mirror 53
Receiving assistance 146
Recirculated-air mode
automatic climate
control 99
Recirculating the air, refer to
Recirculated-air mode 99Reclining seat, refer to Seat
adjustment 47
Refueling 24
fuel filler door 24
Releasing
hood 123
Remaining distance to ser-
vice 81
Remaining distance, refer to
Range 84
Remote control 31
luggage compartment
lid 32
malfunction 32
Replacement key 31
Replacing lamps, refer to
Lamps and bulbs 137
Replacing tires 119
Reporting safety defects 7
Restraint systems
for children 58
Restraint systems, refer to
Safety belts 50
Reverse gear
manual transmission 69
Rollover protection
system 62
indicator lamp 19
lowering 62
Roof load capacity 156
Roof-mounted luggage
rack 108Rope, refer to Towing the
vehicle 149
S
Safe seating position 46
Safety belt height adjust-
ment 50
Safety belts 50
height adjustment 50
seat-integrated safety belt
system 49
sitting safely 46
warning lamp 18
Safety systems, refer to
Antilock Brake
System 114
Dynamic Stability Control
(DSC) 86
Screwdriver, refer to
Onboard tool kit 136
Seat adjustment 47
BMW sports seat 47
lumbar support 47, 48
power seats 47
Seat belt tensioner, refer to
Safety belts 50
Seat heating 52
Seat memory, refer to Seat
and mirror memory 51
Seat positions, storing 51
Seats 47
Securing cargo 107Securing child-restraint sys-
tem 60
Securing the vehicle
from inside 34
from outside 31, 33
Selector lever
sequential M gearbox with
Drivelogic 70
Selector lever positions
sequential M gearbox with
Drivelogic 70
Sequential M gearbox with
Drivelogic 70
indicator lamp 19, 74
Service and Warranty Infor-
mation Booklet 130
SERVICE ENGINE SOON
warning lamp 19
Service interval display
81, 130
Shift lights 74
Shift paddles 71
Side airbags 55
Side turn signal indicators
bulb replacement 138
Sitting safely
with airbags 46
with safety belts 46
Size 155
Ski bag 104
Slipstream deflector, refer to
Wind deflector 44
OverviewControlsMaintenanceRepairsDataIndex

Everything from A to ZSMG Drivelogic 70
Smokers' package, refer to
Ashtray 103
Snow chains 122
SOS, refer to Emergency
call 146
Spare key 30
Special oils 127
Special oils, refer to Speci-
fied engine oils 127
Specified engine oils 127
Specified oils 127
Speed
winter tires 122
Speed gauge, refer to
Speedometer 16
Speedometer 16
Sport mode 90
Sports seat 47
Stability control, refer to
Dynamic Stability Control
(DSC) 86
Standing lamps 92
bulb replacement 137
Starting difficulties
jump-starting 147
temperature 66
Starting help DSC 86
Starting the engine 66
Starting, refer to Starting the
engine 66Status of the Owner's Man-
ual 5
Steering wheel lock 65
Steering wheel, adjusting 53
Storage compartments 101
Storage nets 101
Storing seat positions,
refer to Seat and mirror
memory 51
Storing tires 121
Stroke, refer to Engine
data 154
Surface ice, refer to Ice
warning 83
Switches, refer to
Cockpit 14
Switching off
engine 68
vehicle 68
Symbols 4
T
Tachometer 79
Tail lamps
bulb replacement 139
Tail lamps, refer to Rear
lamps 139
Tank capacity, refer to Fuel
tank capacity 157
Tank indicator, refer to Fuel
gauge 80
Technical data 154Technical modifications 5
Technical modifications,
refer to For your own
safety 5
Telephone hookup 102
Telephone, refer to the sep-
arate Owner's Manual
Television, refer to the
Owner's Manual for
Onboard Computer
Temperature
automatic climate
control 98
Temperature adjustment 98
Temperature display
engine coolant 80
ice warning 83
outside temperature 83
setting units 83
Temperature layering 99
Tempomat, refer to Cruise
control 77
Thigh support area, adjust-
ing 47
Third brake lamp, refer to
Center high-mount brake
lamp 140
Three-point safety belt 50
Tilting passenger-side exte-
rior mirror 52
Time 82Tire pressure monitoring,
refer to Flat Tire
Monitor 87
Tire replacement 119
Tires
age 120
breaking in 112
condition 118, 122
damage 118
flat 140
inflation pressure 25, 118
replacing 119
size, refer to Wheel and
tire combinations 121
storing 121
tread 118
treadwear indicator,
refer to Tire tread – tire
damage 118
winter tires 122
Tools, refer to Onboard tool
kit 136
Torque
engine 154
Tow sockets for towing eye-
let 149
Towing bar 149
Towing eyelet 149
Towing rope 149
Towing the vehicle 149
Track width, refer to Dimen-
sions 155