231 Operation
Tires and wheels
4
TWR (T
ongue W
eight R
ating)
Maximum permissible weight on the trailer
tongue.
Uniform tire quality grading standards
A tire information system that provides
consumers with ratings for a tire’s traction,
temperature and treadwear. Ratings are
determined by tire manufacturers using
government testing procedures. The rat-
ings are molded into the side wall of the
tire.
Vehicle capacity weight
Rated cargo and luggage load plus
68 kilograms (150 lbs) times the vehicle’s
designated seating capacity.
Vehicle maximum load on the tire
Load on an individual tire that is deter-
mined by distributing to each axle its share
of the maximum loaded vehicle weight and
dividing it by two.
Tires on the front and rear axles of vehicles
operate at different loads and perform dif-
ferent steering, driving and braking func-
tions. For these reasons, they wear at unequal rates, and develop irregular wear
patterns. These effects can be reduced by
timely rotation of tires.
The benefits of rotation are especially
worthwhile with aggressive tread designs
such as those on On/Off Road type tires.
Rotation will increase tread life, help to
maintain mud, snow, and wet traction lev-
els, and contribute to a smooth ride.
If applicable to your vehicle’s tire configu-
ration, tires can be rotated according to
the tire manufacturer’s recommended in-
tervals in the tire manufacturer’s warranty
pamphlet located in your vehicle literature
portfolio. If none is available, tires should
be rotated every 10,000 miles
(16,000 km), or sooner if necessary, ac-
cording to the degree of tire wear.
The same rotation (spinning) direction
must be maintained when mounted, see
"Direction of rotation" (\2page 204).
Rotate tires before the characteristic tire
wear pattern becomes visible (shoulder
wear on front tires and tread center wear
on rear tires).
Rotating tiresWarning
G
Rotate front and rear wheels only if they are
of the same dimension.
Changing the tire dimension for an axle
\4could cause the tire to come into con-
tact with the vehicle body or axle parts.
Damage to the tire or the vehicle may be
the result.
\4could result in changes to steering, han-
dling, and braking of your Sprinter vehi-
cle. This can cause unpredictable
handling and stress to steering and sus-
pension components. You could lose
control and have an accident resulting in
serious injury or death.
\4could result in tire overloading and fail-
ure, if the tires' load index are not iden-
tical. You could lose control and have an
accident.
