111n
IndexDataTechnologyRepairsCar careControlsOverview
Winter operation Power steering
Do not shift down on slick road
surfaces. Doing so could cause
the rear wheels to lose traction and
skid, resulting in a loss of vehicle con-
trol.<
Depress the clutch during hard
braking on road surfaces that pro-
vide only poor or uneven traction.<
Skid control Depress the clutch and release the ac-
celerator pedal, or place the selector
lever of the automatic transmission into
the "Neutral" position. Countersteer
carefully and attempt to regain control
of the vehicle.
ParkingEngage 1st or reverse gear. If your car
is equipped with an automatic trans-
mission, place the selector lever in
Park. On vehicles with manual trans-
mission, also apply the parking brake
when parking on inclined surfaces. In
order to prevent the parking brake lin-
ings from locking due to frost or corro-
sion, dry them by gently applying the
parking brake as the vehicle is coming
to a stop. Make sure that following traf-
fic is not endangered.
The brake lamps do not light up
when the parking brake is ap-
plied.<
High steering effort:
Contact an BMW center immediately to
have this system inspected.
If the power steering fails, in-
creased effort will be required to
steer the vehicle.<
114n
To maintain good handling and vehicle
response, use only tires of a single
tread configuration from a single manu-
facturer. BMW tests and approves
wheel/tire combinations. Refer to
page 118.
DOT Quality GradesTreadwear
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.
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 as-
phalt 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, hy-
droplaning, or peak traction character-
istics.
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 correspods to a level of
performance which all passenger car
tires must meet under 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 ex-
cessive loading, either separately or in
combination, can cause heat buildup
and possible tire failure.
tread shoulder and maximum section
width. For example:
Treadwear 200 Traction AA
Temperature A
Tire replacement
115n
IndexDataTechnologyRepairsCar careControlsOverview
Tire replacement Tire rotation
Do not use retreaded tires. Driving
safety may be impaired by their
use. This is due to the possible varia-
tions in casing structures and, in some
cases, to their extreme age, factors that
can lead to a decrease in their durabil-
ity.<
Tire ageThe date on which the tire was manu-
factured is indicated by the code on the
sidewall:
DOT ... 329 indicates that the tire was
manufactured in Week 32 of 1999.
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.
Spare tires over 6 years old should be
used only in case of emergency. A tire
in this condition should be replaced by
a new tire immediately, and should not
be mounted together with new tires.
Between the axlesThe tread wear patterns at the front end
differ from those at the rear Ð the actual
patterns will vary according to individ-
ual driving conditions. In the interests of
safety and maintaining optimal handling
characteristics, tire rotation is not rec-
ommended.
If a proposed interaxle rotation of tires
is based on economic considerations,
one should consider whether the costs
for the rotation are likely to be recap-
tured by any increase in the service life
of the tires that might be realized. In
principle, interaxle rotation should be
performed in short intervals, with a
maximum of 3,000 miles (5,000 km).
Consult your BMW center for more
information.
Should you decide to rotate the tires, it
is essential to comply with the following:
Rotate tires on the same side only, since
braking characteristics and road grip
could otherwise be adversely affected.
Following rotation, the tire inflation
pressure should always be corrected.If different tire sizes are mounted
on the front and rear axles (refer to
page 118), the wheels may not be ro-
tated from one axle to the other.<
116n
Wheel and tire combinations The right choice Use only BMW-approved tires. Refer to
page 118.
Due to the high speeds this vehicle can
reach, the use of specific brands, spec-
ifications and sizes is mandatory. Con-
sult any BMW center for details. Com-
ply with local/national regulations.
The correct wheel-tire combina-
tion affects different systems such
as ABS, ATC and DSC. The function of
these systems is impaired if improper
wheel-tire combinations are used.
For this reason, use only tires of the
same brand and tread pattern. In the
event of a flat tire, for example, remount
the approved wheel-tire combination as
soon as possible.<
Codes on tires and wheels The tire codes will aid you in selecting
the correct tire.
The codes on radial tires:
The speed rating indicates the approved
maximum speed for the tire.
Summer tires:
S = up to 112 mph (180 km/h)
T = up to 118 mph (190 km/h)
H = up to 130 mph (210 km/h)
V = up to 150 mph (240 km/h)
W = up to 167 mph (270 km/h)
Y = above 167 mph (270 km/h)
ZR = above 150 mph (240 km/h) Example:
Nominal width
in mm
Aspect ratio in %
Radial tire ID code
Rim diameter in inches
Load rating
(not on ZR tires)
Speed rating
(before R on ZR tires)
205/60 R
1591W
Winter tires:
Q M+S = up to 100 mph (160 km/h)
T M+S = up to 118 mph (190 km/h)
H M+S = up to 130 mph (210 km/h)
Codes stamped on light-alloy wheels:
Protect tire valve from dirt by using
screw-on valve stem caps. Dirt in the
valves frequently leads to slow leaks. Example:
Rim width
in inches
Code letter for
flange type
Symbol for full-drop
center rim
Rim diameter in inches
Hump on the 2 rim shoulders
7 x 15 H 2
J
117n
IndexDataTechnologyRepairsCar careControlsOverview
Winter tiresChoosing the right tireBMW recommends winter tires (M+S
radial tires) for driving in adverse winter
road conditions. Although all-season
M+S tires provide better winter traction
than standard summer tires with H, V,
W, Y and ZR speed ratings, they gener-
ally fail to provide the same levels of
performance as standard snow tires in
winter driving.
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.
Mount only winter tires approved by
BMW. Any BMW center will be glad to
provide you with information on the
best winter tires for your particular driv-
ing conditions.Never exceed the maximum speed
for which the tires are rated.
Unprofessional attempts by laymen to
service tires can lead to damage and
accidents.
Have this work performed by skilled
professionals only. Any BMW center
has the required technical knowledge
and the proper equipment and will be
happy to assist you.<
Tire condition, tire pressureWinter tires display a perceptible loss in
their ability to cope with winter driving
conditions once the tread wears to
below 0.16 inches (4 mm), and should
thus be replaced.
Comply with the specified tire inflation
pressures Ð 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 con-
tact with oil, grease and fuel.Snow chains
*
The use of narrow-link BMW snow
chains on summer or winter tires is
approved only in pairs and only on the
rear wheels. Comply with all manufac-
turer's safety precautions when mount-
ing the chains.
118n
Approved wheel and tire specifications Tire specifications Steel rim (wheel rim) Light-alloy wheel
BMW 323i
All-Season
195/65 R 15 91 H Ð 6.5Jx15
Summer tires
195/65 R 15 91 H Ð 6.5Jx15
205/60 R 15 91 H Ð 6.5Jx15
7Jx15
205/55 R 16 91 H
225/50 R 16 92 W
225/50 ZR 16Ð 7Jx16
225/45 R 17 91 W Ð 8Jx17
Front: 225/45 ZR 17 Ð 7.5Jx17
Rear: 245/40 ZR 17 Ð 8.5Jx17
Winter tires
195/65 R 15 91 Q M+S 6.5Jx15 6.5Jx15
205/60 R 15 91 Q M+S 6.5Jx15 6.5Jx15
7Jx15
205/55 R 16 91 Q M + S
225/50 R 16 92 Q M + S7Jx16 7Jx16
225/45 R 17 91 Q M + S Ð 8Jx17
Space-saver spare tire
T 125/90 R 15 96 M 3.5Bx15 Ð
T 125/90 R 16 98 M 3.5Bx16 Ð
Comply with the specifications for tires and wheels in the vehicle's manuals.
If you install tire sizes not approved by the manufacturer, an entry in the vehicle
documents may be necessary.
Snow chains
*
You cannot mount snow chains with the
following tires:
225/50 R 16 92 W
225/50 ZR 16
225/45 ZR 17
245/40 ZR 17
225/45 R 17 91 W
225/50 R 16 92 Q/T/H
225/45 R 17 91 Q/T/HMixed tiresFor details concerning tire manufactur-
ers for mixed tires, refer to the original-
equipment specifications.
119n
IndexDataTechnologyRepairsCar careControlsOverview
Approved wheel and tire specifications Tire specifications Steel rim (wheel rim) Light-alloy wheel
BMW 328i
All-Season
205/55 R 16 91 H Ð 7Jx16
Summer tires
205/55 R 16 91 H
225/50 R 16 92 H
225/50 ZR 16Ð 7Jx16
225/45 R 17 91 H Ð 8Jx17
Front: 225/45 ZR 17 Ð 7.5Jx17
Rear: 245/40 ZR 17 Ð 8.5Jx17
Winter tires
205/55 R 16 91 Q M + S
225/50 R 16 92 Q M + S7Jx16 7Jx16
225/45 R 17 91 Q M + S Ð 8Jx17
Space-saver spare tire
T 125/90 R 16 98 M 3.5Bx16 Ð
Comply with the specifications for tires and wheels in the vehicle's manuals.
If you install tire sizes not approved by the manufacturer, an entry in the vehicle
documents may be necessary.
Snow chains
*
You cannot mount snow chains with the
following tires:
225/50 R 16 92 W
225/50 ZR 16
225/45 ZR 17
245/40 ZR 17
225/45 R 17 91 W
225/50 R 16 92 Q/T/H
225/45 R 17 91 Q/T/HMixed tiresFor details concerning tire manufactur-
ers for mixed tires, refer to the original-
equipment specifications.
132n
Washing your car You can have your BMW washed in
an automatic car wash, even when it
is new. Car wash systems that do not
employ brushes are preferable.
Wipe away tough dirt and loosen and
remove dead insects before washing
the car.
In order to avoid spots, do not wash the
vehicle when the hood is warm, or dur-
ing or immediately after exposure to
strong sunlight.
When using an automatic car wash, be
sure that:
>The car wash system is suited for the
dimensions of your vehicle.
>No damage will occur on vehicles
with attached body accessories (such
as spoilers or antennas). Consult the
car wash operator if necessary.
>The wheels and tires of your vehicle
cannot be damaged by the convey-
ance devices of the car wash system.
>The vehicle is cleaned with minimum
brush pressure, and that ample water
is available for washing and rinsing.Vehicles with rain sensor
*:
Clean the windshield regularly. Wax
from automatic car washes or insects
can cause malfunctions in the function
of the rain sensor
*.
Turn the rain sensor
* off (refer to
page 69) when passing through an
automatic car wash. Failure to do so
could result in damage caused by unin-
tended wiper activation.<
Parts of the car that are inaccessible to
the automatic washer Ð such as door
sills, door and hood edges, etc. Ð
should be cleaned by hand.
In the winter months, it is especially
important to be sure that the car is
washed on a regular basis. Large quan-
tities of dirt and road salt are difficult to
remove, and they also cause damage
to the vehicle.
If spray wands or high-pressure
washers are used, be sure to
maintain an adequate distance between
the spray source and the vehicle's sur-
face. Inadequate distance and exces-
sive pressure can damage or weaken
the finish, making it more susceptible to
subsequent attack. In addition, mois-
ture could penetrate to vehicle compo-
nents, leading to long-term damage.<
When cleaning the headlamps,
please observe the following:
>Do not clean by wiping with a dry
cloth (this causes scratches). Never
use abrasives or strong solvents.
>Remove dirt and contamination (such
as insects) by soaking with BMW Car
Shampoo and then rinsing with plenty
of water.
>Always use a deicer spray to remove
accumulated ice and snow Ð never
use a scraper.<
After washing the car, apply the
brakes briefly to dry them. Braking
efficiency might otherwise be reduced
by the moisture and the brake rotors
could also be corroded.<
Caring for your car