tires BMW 325I 2002 User Guide

108n
Tire condition Tire replacementTire damage (up to and including
sudden and complete air loss) can
endanger the lives of both the vehicle
occupants and other road users. response, use only tires of a single
tread configuration from a single manu-
facturer.
DOT Quality GradesTread wear
Traction AA A B C
Temperature A B C
All passenger vehicle tires must
conform to Federal Safety
Requirements in addition to these
grades.< Tread wearThe tread wear grade is a comparative
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 g) 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.< TemperatureThe temperature grades are A (the
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
temperature can lead to sudden tire
failure. The grade C corresponds to a
level of performance which all
passenger vehicle tires must meet

109n
OverviewControlsMaintenanceRepairsDataIndex
Tire replacementunder 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, underinflation, or
excessive loading, either separately or
in combination, can cause heat buildup
and possible tire failure.< Uniform Tire Quality Grading Quality grades can be found where
applicable on the tire sidewall between
tread shoulder and maximum section
width. For example:
Tread wear 200
Traction AA
Temperature A
Do not use retreaded tires, since
driving safety may be impaired.
This is due to the possible variations in
casing structures and, in some cases,
to their extreme age, which can lead to
a decrease in their durability.<
Tire ageThe date on which the tire was manu-
factured is indicated by the code on the
sidewall:
DOT ... 4101 indicates that the tire was
manufactured in Week 41 of the year
2001.
Although tires may have a theoretical
service life of up to 10 years, BMW
strongly recommends that you replace
all tires after an absolute maximum of
6 years.
Safety tires
*
Safety tires consist of self-supporting
tires and special rims. The tire rein-
forcement ensures that the tire retains
some residual safety in the event of
pressure drop and driving remains
possible to a restricted degree. The
vehicle is equipped with Tire Pressure
Monitor (RDC) or Flat Tire Monitor,
which indicate a flat tire.
For additional information on Tire Pres-
sure Monitor (RDC) or Flat Tire Monitor
refer to page 78 or 80.
Safety tires are only possible in
conjunction with Tire Pressure
Monitor (RDC) or Flat Tire Monitor.<

110n
Wheel and tire combinationsThe right choice
Never mount wheels and tires that
have not been specifically
approved by BMW for use on your
particular 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. BMW can not 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.
The correct wheel and tire combi-
nation affects various systems
that would otherwise be impaired, for
example ABS, ATC, ASC+T/DSC and
ADB/ADB-X/DBC.
For this reason, use only tires of the
same manufacture and tread configura-
tion. In the event of a flat tire, for
example, remount the approved wheel
and tire combination as soon as
possible.<

111n
OverviewControlsMaintenanceRepairsDataIndex
Winter tiresChoosing the right tireBMW recommends winter tires (M+S
radial tires) for operation under
inclement winter driving conditions.
While all-season tires (M+S designa-
tion) provide better winter traction than
summer tires with the load ratings H, V,
W, Y and ZR, they generally do not
achieve the performance of winter tires.
In the interest of safe tracking and
steering response, install winter tires
made by the same manufacturer 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.<
Tire condition, tire pressureOnce the tire wears to below 0.16 in
(4 mm), winter tires display a percep-
tible decrease in their ability to cope
with winter driving conditions, and
should be replaced in the interest of
safety.
Comply with the specified tire inflation
pressures Ñ and be sure to have the
wheel and tire assemblies balanced
every time you change the tires.
StorageAlways store tires in a cool, dry place.
Store them away from light whenever
possible. Protect the tires against
contact with oil, grease and fuel.Snow chains
*
Use BMW narrow-link snow chains on
summer or winter tires in pairs only and
only on the rear wheels.
BMW 325xi: in an extreme emergency Ð
for instance, with the vehicle stuck on
one side, or when obstructions make it
impossible to reach one tire Ð a chain
may also be mounted on just one tire
for the limited period needed to resolve
the problem.
Comply with all manufacturer's safety
precautions when mounting the chains.
You cannot mount snow chains on the
following tires:
225/50 R 16 92
225/45 R 17 91
245/40 ZR 17

132n
Changing a wheel
Only use original BMW full wheel
covers, otherwise, the trim piece
may not fit securely. The full wheel
cover may not be installed on the
space-saver spare tire, since this could
damage the cover.<
The vehicle jack is designed for
changing wheels only. Do not
attempt to raise another vehicle model
with it or to raise any load of any kind.
To do so could cause accidents and
personal injury.
To ensure continued safety, have the
tightness of the lug bolts checked with
a calibrated torque wrench [torque
specification: 72 lb ft (100 Nm)] at the
earliest opportunity.<
When storing a wheel in the spare tire
recess take care to avoid bending the
threaded rod.
If the original BMW light-alloy wheels
have been replaced with other light-
alloy wheels, different lug bolts may be
required.
Replace the defective tire as soon as
possible and have the new wheel/tire
balanced.
Driving with the space-saver
spare tireDrive cautiously. Do not exceed a
speed of 50 mph (80 km/h).
You can anticipate changes in vehicle
handling such as delayed braking
response, longer braking distances and
sacrifices in roadholding.
The changes in handling characteristics
will be even more pronounced if winter
tires are mounted.
Only one space-saver spare tire
may be mounted at a time. Rein-
stall wheels and tires of the same size
and specification as soon as possible.
Maintain correct tire pressures, refer to
page 24.<
Safety tires
*
Safety tires consist of self-supporting
tires and special rims. The tire rein-
forcement ensures that the tire retains
some residual safety in the event of
pressure drop and driving remains
possible to a restricted degree. The
vehicle is equipped with Tire Pressure
Monitor (RDC) or Flat Tire Monitor,
which indicate a flat tire.Flat tireIf there is a tire failure, the red warning
lamp symbol lights up. A supplemen-
tary gong is also heard.
For additional information on Tire Pres-
sure Monitor (RDC) or Flat Tire Monitor
refer to page 78 or 80.
Reduce vehicle speed carefully to
under 50 mph (80 km/h), avoiding hard
brake applications and steering maneu-
vers.
With the safety tires, you can drive
another approx. 155 miles (250 km) to
reach a safe parking location, a service
station or the nearest BMW center.
With a low vehicle load, this can also be
considerably more than 155 miles
(250 km).

133n
OverviewControlsMaintenanceRepairsDataIndex
Changing a wheel Battery Fuses
Safety tires are only possible in
conjunction with Tire Pressure
Monitor (RDC) or Flat Tire Monitor.<
If the defective wheel cannot be seen
as such immediately from the outside,
check the tire inflation pressure at all
four wheels.
Have the tires changed by your
BMW center. For safety reasons,
do not have a safety tire repaired. Your
BMW center has the information
needed for working with safety tires
and is equipped with the necessary
special tools.<
If appropriate, please consult your
BMW center to reequip your
vehicle from summer to winter tires Ð or
vice versa.<
Battery careThe battery is absolutely maintenance-
free, that is, the original electrolyte will
normally last for the service life of the
battery under moderate climatic condi-
tions.
Please consult your BMW center
whenever you have any questions
concerning the battery. Since the battery
is absolutely maintenance-free, the
following is for your information only.<
Never disconnect the battery
when the engine is running; the
ensuing voltage surge would seriously
damage the vehicle's onboard elec-
tronic systems. vehicle, leave the engine off at all times.
Connect the charge cables to the termi-
nals in the engine compartment.
Terminal locations, refer to Jump-
starting on page 134.
Return used batteries to a recycling
point or your BMW center. Maintain
the battery in an upright position for
transport and storage. Secure the
battery against tilting during transport.<
The fuses are located in the glove
compartment behind a cover secured
by two snap clips.
Do not attempt to repair a blown
fuse or replace it with a fuse
having a different color or amperage
rating. To do this could cause a fire in
the vehicle resulting from a circuit over-
load.<

Everything from A to ZDistance warning70
Door keys28
Doors
electrical malfunction31
locking and unlocking29
manual operatiom31
DOT Quality Grades,
tires108
Draft-free ventilation87, 90
Drawbar weight142
Drink holder, refer to
beverage holder93
Drive belts17
Driving notes105
DSC (Dynamic Stability
Control)19, 73
Dynamic Brake Control
(DBC)74
Dynamic Stability Control
(DSC)19, 73 E
Electric power windows37
Electrical malfunction
doors31
fuel filler door22
sliding/tilt sunroof39
tailgate33 Electrical power socket95
Elements of operation14
Energy Control65
Engine compartment
essentials113
Engine coolant143
Engine data140
Engine oil
capacity143
consumption115
disposal116
quality116
specifications116
viscosity116
Engine oil level115
checking115
indicator lamp19
Engine specifications140
Engine speed140
F
Fault displays67
Filling capacities143
Fittings, tow starting and
towing135
Flashlight92
Flat Tire
Monitor80, 109, 132 Flat tires107, 129, 132
Fog lamps83
Follow me home lamps82
Front fog lamps83
Front seat adjustment40
Fuel consumption69
display66
Fuel filler door22
electrical malfunction22
manual operation22
Fuel gauge66
Fuel injection system140
Fuel reserve indicator
lamp66
Fuel tank capacity143
Fuel tank gauge66
Fuses133
G
Gasoline gauge66
Glove compartment92
Gross vehicle weight142 H
Handbrake57
Hands-free system94
microphone94 Harman Kardon premium
sound system91
Hazard warning triangle22
HDC (Hill Descent
Control)77
Head restraints43
Headlamp cover, care125
Headlamp flasher83
Headlamp washer
system114
capacity143
Headlight control82
Heated seats46
High beams20, 60, 83
bulb replacement125
High Performance Synthetic
Oil116
Hill Descent Control
(HDC)77
Holder for beverage
cans93
Hood release112
Horn14

Everything from A to Z
149n
OverviewControlsMaintenanceRepairsDataIndex
I
Ice warning68
Icy roads68
Ignition keys28
Ignition lock55
Imprint4
Indicator lamps17
Inflation pressures24, 107
INSPECTION66
Instrument cluster15
Instrument lighting83
Instrument panel15
Interface socket
for onboard diagnostics
(OBD)121
Interior lamps30, 84
remote control30
Interior motion sensor35
operation via remote
control30
switching off36
Interior rearview mirror47
automatic dimming
feature48
Interlock55
J
Jack129
Jump-starting134 K
Key Memory54
Key set28
Keys28 L
Lamps and bulbs,
replacement125
Lashing eyes100
License plate lamps, bulb
replacement128, 129
LIGHTS ON warning82
Litter bag holder93
Loading and driving
notes100
Load-securing devices100
Lock buttons32
Low beams82
bulb replacement125
Lug wrench129
Luggage cover, refer to
cargo area cover
Luggage rack100
M
M+S tires111
Maintenance66, 119
Malfunction displays67
Manual operation
doors31
fuel filler door22
sliding/tilt sunroof39
tailgate33
Manual seat adjustment41
Manual transmission57
Manually controlled recircu-
lated-air90
Master keys28
Memory settings45
MFL (Multifunction steering
wheel)21
Microfilter87, 91
Mirror defrosting47
Mirror memory45
Mirrors47
Mobile phone94
Modifications,
technical10, 120
Motion sensor, refer to
interior motion sensor35
Multifunction steering wheel
(MFL)21
O
OBD interface socket121
Odometer65
Oil
additives115
capacity143
consumption115
quality116
specifications116
viscosity116
Oil change intervals, see the
Service and Warranty
Information Booklet
Oil dipstick115
Oil filter change143
OILSERVICE66
Onboard computer68
refer also to the "Owner's
Manual Onboard
Computer"
Onboard tool kit124
Opening and closing
from the inside32
via the door lock31
via the remote control29
Outside temperature
display68

P
Paintwork, refer to the
"Caring for your vehicle"
manual
Park assistant70
Park Distance Control
(PDC)70
Parking aid70
Parking brake57
Parking lamps82
bulb replacement126
Partition net97
PDC (Park Distance
Control)70
Phone94
Pocket light92
Power seat adjustment42
Power windows
safety switch38 Q
Quality Grades, tires108
R
Radiator143
Rain sensor61
RDC (Tire Pressure
Monitor)78
Rear backrests, folding97
Rear fog lamps
bulb replacement127
Rear lamps127
Rear reading lamps84
Rear window34
Rear window
defroster86, 90
Rearview mirror47
Recirculated-air mode86
Reclining seat40
Refilling washer
reservoir114
Refueling22
Remote control29
Remove window
condensation87, 89
Replace rear window wiper
blades124 Replace windshield wiper
blades124
Replacement keys28
Reporting safety defects11
Retractable luggage cover,
refer to cargo area cover
Reverse57
Roof load capacity142
Roof-mounted luggage
rack100
S
Safe with safety belts40
Safety belts40
height adjustment44
Safety defects, reporting11
Safety tires109, 132
Seat adjustment40
Seat heating46
Seat memory45
Seat, manually-adjusted40
Securing cargo100
Selector lever, automatic
transmission58
Service and Warranty Infor-
mation Booklet (US
models)119 Service Interval
Display66, 119
Setting temperature86
Shiftlock58
Shoulder strap height
adjustment44
Side airbags48
Side Impact Head Protection
System48
Sitting correctly with
airbags40
Ski bag96
Sliding/tilt sunroof38
electrical malfunction39
manual operation39
Socket for power
appliances94
Sound system91
Spare key28
Spare tire129
Speedometer15
Sports seat
manual adjustment41
power adjustment42
Standing lamps83
Starting problems56
Starting the engine55
Steering wheel46

Everything from A to Z
151n
OverviewControlsMaintenanceRepairsDataIndex
Steering wheel lock55
Stopping the vehicle56
Storage compartments92
Stroke140
Switching off the engine56
Symbols8
Synthetic oils116 T
Tail lamps
bulb replacement127
Tailgate33
electrical malfunction33
manual operation33
remote control
operation30
Tank capacity143
Technical data140
Technical
modifications10, 120
Telephone preparation94
Temperature display
outside temperature68
Temperature gauge
engine coolant66 Temperature
layering87, 90
Temperature
settings86, 89
The Automatic Differential
Brake (ADB-X)75
Thigh support41
Third brake light128
Tilt alarm sensor36
operation via remote
control30
switching off36
Tire change129
Tire inflation
pressures24, 107
Tire inflation pressures,
table25
Tire Pressure Monitor
(RDC)78, 109, 132
Tire pressure, indicator78
Tire pressure,
monitoring78
Tire Quality Grading109
Tire replacement108
Tire tread107
wear indicators (TWI)107 Tools124
Torque140
Tow fittings135
Towing the vehicle135
Trailer weights142
Transmission57
Transmitter keys28
Transporting children
safely51
Tread depth, tires107
Tread wear indicators107
Trip odometer65
Turn signal
indicators20, 60
Turn signals
bulb replacement126
U
Uniform Tire Quality
Grading109
Use antifreeze, radiator117
V
Vehicle keys28
Vehicle Memory54
Vehicle weight142
Vehicle, starting55
Ventilation85, 88
draft-free87, 90 W

Warning lamps17
Warning messages67
Warranty and Service Guide
Booklet (Canadian
models)119
Washer fluid, adding114
Washer reservoir, filling114
Washing your vehicle, refer
to the "Caring for your
vehicle" manual
Water on roadways105
Weights142
Wheel and tire
combinations110
Wheels and tires107
Windshield washer system
capacity143
filling114