2003 BMW 330Ci COUPE tire type

111 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 inflation pressure.
Incorrect tire inflation pressure is a fre-
quent cause of tire damage. It also sig-
nificantly influences the roadholding
ability of your BMW.
Be sure to check the tire inflation
pressure, including the space-
saver spare tire or the spare tire, on a
regular basis, at least twice a month
and before every extended journey,
refer to page 24. If this is not done,
incorrect tire pressures can cause driv-
ing instability and tire damage, ulti-
mately resulting in 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 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 vehi-
cle so that the permitted load on the
tires is not exceeded. Overloading can
lead to overheating and internal tire
damage.
The ultimate result can assume the
form of a sudden air loss.
Unusual vibrations encountered during
normal vehicle operation can indicate a
flat tire or some other vehicle malfunc-
tion. This type of problem can be
caused by contact with curbs, etc. This
is also true for irregularities in the vehi-
cle's handling characteristics, such as a
pronounced tendency to pull to the left
or right. Should this occur, respond by
immediately reducing your speed. Pro-
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114
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. BMW cannot evaluate all tires
and wheels on the market, and is thus
unable to guarantee that the vehicle will
continue to perform safely if unap-
proved tires and/or wheels are
mounted.<
For each tire size, BMW has assessed
the safe performance of specific tire
brands and approved them for use.
Consult any BMW center for details.
Comply with any local/national regula-
tions, for example by recording the tire
type in the vehicle documents.
The correct wheel and tire combi-
nation affects various systems
that would otherwise be impaired, for
example ABS, ASC+T/DSC and
ADB/DBC.
For this reason, use only tires of the
same manufacture and tread configura-
tion. In the event of a flat tire, for exam-
ple, remount the approved wheel and
tire combination as soon as possible.<
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.
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 winter tires
made by the same manufacturer and
having the same tread configuration on
all four wheels.
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 trained
professionals only. Any BMW center
has the required technical knowledge
and the proper equipment and will be
happy to assist you.<
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Everything from A to Z
153
Cockpit 14
Code, refer to the Owner's
Manual for Radio
Coin box 98
Compartments 98
Compression ratio 146
Computer 74
Condensation
removing from windows
91, 94
Consumption 75
display 71
Coolant 122, 149
Cooling system 149
Copyright 4
Cornering Brake Control
(CBC) 18, 109
Cruise control 68
Cup holder, see Beverage
holder 98
Curb weight 148
Cushion height 147
D
Data
dimensions 147
engine 146
technical 146
weights 148
Daytime driving lamps 85
DBC Dynamic Brake
Control 109Defrost position 91, 94
Defrosting
rear window 90, 95
windows 91, 94
Digital clock 73
Dimensions 147
Dipstick, engine oil 120
Displacement 146
Display lighting 86
Displays 16
Distance warning 76
Divided rear backrest 102
Door key 30
Door lock buttons 34
Doors
emergency operation 33
unlocking and locking 31
Driving notes 109
DSC Dynamic Stability Con-
trol 18, 19, 79
DTC Dynamic Traction
Control 79
Dynamic Brake Control
(DBC) 109
Dynamic Stability Control
(DSC) 18, 19, 79
Dynamic Traction Control
(DTC) 79
E
Electric power windows 40Electrical accessories, fail-
ure 140
Electrical malfunction
fuel filler door 23
sliding/tilt sunroof 42
Emergency operation
doors 33
fuel filler door 23
sliding/tilt sunroof 42
Emergency release
luggage compartment
lid 37
Emissions, minimum, refer
to Energy control 70
Energy control 70
Engine
starting 59
switching off 61
Engine compartment 118
Engine coolant 149
adding 122
temperature gauge 71
Engine data 146
Engine oil
adding 120
capacity 149
quality 121
viscosity 121
Engine oil consumption 120
Engine oil level 19
check 120
Engine oil pressure 18Engine oil types 121
Engine speed 146
Entering the rear 46
Environmentally-friendly
driving, refer to Energy
control 70
Exterior mirrors 50
Eyelet, towing 142
F
False alarm, avoiding 39
Fault displays 72
First-aid kit 22
Flashlight 98
Flat tire 111, 135
Flat Tire Monitor 82
Fog lamps 87
Folding rear backrest 102
Follow me home lamps 85
Front fog lamps 87
Front seat adjustment 43
Frost protection
radiator 122
Fuel consumption 75
display 71
Fuel economy, refer to
Energy control 70
Fuel filler door 23
release following an elec-
trical malfunction 23
Fuel gauge 71
Fuel specifications 24
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Everything from A to Z
155
N
Navigation System, refer to
the separate Owner's
Manual
Neckrest 46
O
OBD interface socket 126
Obstruction protection 40
Odometer 70
Oil
capacity 149
quality 121
viscosity 121
Oil additives 121
Oil change intervals, refer to
the Service and Warranty
Information Booklet for US
models/Warranty and Ser-
vice Guide Booklet for
Canadian models
Oil consumption 120
Oil dipstick 120
Oil filter change 149
Oil level
checking 120
indicator lamp 18
Oil pressure
indicator lamp 18
OIL SERVICE 72
Oil types 121Onboard computer, refer to
the Owner's Manual for
Onboard Computer
Onboard tool kit 130
Operating elements 14
Outlets, ventilation 88, 92
Outside temperature dis-
play 74
P
Panic mode – trigger
alarm 32
Park Distance Control
(PDC) 76
Parking aid 76
Parking brake 61
Parking lamps 85
replacing bulb 132
PDC Park Distance
Control 76
Pocket flashlight 98
Pollen 91, 96
Power output 146
Power seat 45
Pressure, tires 24, 81, 111
monitoring 81
R
Radiator 149
Radio
refer to the Owner's Man-
ual for RadioRain sensor 67
Range 75
Reading lamps
front 87
rear 87
Rear backrest, folding 102
Rear center 3-point safety
belt 102
Rear lamps 133
Rear window defroster
90, 95
Rearview mirror 50
Recirculated-air mode
90, 95
Reclining seat 43
Refueling 23
Remote control 31
Remote control keys 30
Replacement key 30
Reporting safety defects 6
Reserve indicator lamp 71
Reverse 62
Roof load capacity 148
Roof-mounted luggage
rack 105
Run Flat tires 113, 139
S
Safe seating position 43
Safety belt height adjust-
ment 47
Safety feature 40Seat adjustment 43
mechanical 44
power 45
Seat heating 49
Seat memory 48
Securing cargo 105
Securing devices 105
Selector lever, automatic
transmission 63
Service and Warranty Infor-
mation Booklet 124
Service interval display
72, 124
Shiftlock 63
Side airbags 52
Size 147
Ski bag 103
Sliding/tilt sunroof 41
closing following an elec-
trical malfunction 42
convenience operation 31
remote control 32
Snow chains 115
Socket 100
Spare key 30
Spare tire 135
Speedometer 16
Sports seat 44
Standing lamps 86
Starting problems 59
Starting the engine 59
Steering wheel lock 59
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