Tire condition
Tire replacement
115
Do not drive on a deflated – flat –
tire. A flat tire greatly impairs
steering and braking response, and can tread configuration from a single manu-
lead to complete loss of control over
the vehicle.
To maintain good handling and vehicle
response, use only tires of a single
depart significantly from the norm due
to variations in driving habits, service
practices and differences in road char-
acteristics and climate.
facturer.
Comply with the specified tire inflation
pressures – and be sure to have the
wheel and tire assembly balanced
every time you change a tire or wheel.
Avoid overloading the vehicle so that
the permitted load on the tires is not
exceeded. Overloading can lead to
overheating and internal tire damage.
This can result in a sudden loss of tire
inflation pressure.
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-
ceed carefully to the nearest BMW cen-
ter or professional tire center, or have
the vehicle towed in to have it, its
wheels or its tires inspected.
Traction
The 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.
DOT quality grades
Treadwear
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.<
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.<
Treadwear
The treadwear 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.
Temperature
The temperature grades are A – the
highest – B and C, representing the
tire's resistance to the generation of
Tire damage, up to and including blow-
outs, can endanger the lives of both the For example, a tire graded 150 would
vehicle occupants and other road
users.<
wear one and one-half – 1
/2 – times as heat and its ability to dissipate heat
1
well on the government course as a tire when tested under controlled condi-
graded 100. The relative performance
of tires depends upon the actual condi-
tions of their use, however, and may
tions on a specified indoor laboratory
test wheel.
| Categories | BMW 3-Series Manuals, BMW Manuals |
|---|---|
| Tags | BMW E46, BMW M3 Manuals |
| Model Year | 2004 |
| Download File |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
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