All About Wheels And Tires; Overview - Mercedes-Benz 2013 SL Operator's Manual

Step 2
Example 1 Example 2
Number of 1
people in the
vehicle (driver
and
occupants)
Weight of the Occupant
occupants 1: 175 lbs
(80 kg)
Gross weight
175 lbs
of all
(80 kg)
occupants
Step 3
Example 1 Example 2
Permissible 1500 lbs
load (680 kg)
(maximum Ò175 lbs
gross vehicle
(80 kg) =
weight rating
1325 lbs
from the Tire
(600 kg)
and Loading
Information
placard minus
the gross
weight of all
occupants)
Vehicle identification plate
Even if you have calculated the total load
carefully, you should still make sure that the
gross vehicle weight rating and the gross axle
weight rating are not exceeded. Details can
be found on the vehicle identification plate on
the B-pillar on the driver's side of the vehicle
( page 555).
Y
Permissible gross vehicle weight: the
gross weight of the vehicle, all passengers
and the load must not exceed the permissible
gross vehicle weight.
Gross axle weight rating: the maximum
permissible weight that can be carried by one
2
axle (front or rear axle).
To ensure that your vehicle does not exceed
the maximum permissible values (gross
vehicle weight and maximum gross axle
weight rating), have your loaded vehicle
Occupant
(including driver, occupants and the load)
1: 175 lbs
weighed on a suitable vehicle weighbridge.
(80 kg)
Occupant
2: 195 lbs

All about wheels and tires

(88 kg)
Uniform Tire Quality Grading
370 lbs
Standards
(168 kg)
Overview of Tire Quality Grading
Standards
1500 lbs
(680 kg)
Ò370 lbs
(168 kg) =
1130 lbs
(512 kg)
Uniform Tire Quality Grading Standards are
U.S. government specifications. Their
purpose is to provide drivers with uniform
reliable information on tire performance data.
Tire manufacturers have to grade tires using
three performance factors: treadwear
grade :, traction grade ; and temperature
grade =. These regulations do not apply to
Canada. Nevertheless, all tires sold in North
America are provided with the corresponding
quality grading markings on the sidewall of
the tire.
Where applicable, the tire grading
information can be found on the tire sidewall
between the tread shoulder and maximum
tire width.
All about wheels and tires
557
Z