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Wheels and tires, All about wheels and tires – Mercedes-Benz SLK-Class 2015 Owners Manual User Manual

Page 326

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Step 2

Example 1 Example 2

Number of

people in the

vehicle (driver

and occu-

pants)

1

2

Weight of the

occupants

Occu-

pant 1:

175 lbs

(80 kg)

Occu-

pant 1:

175 lbs

(80 kg)
Occu-

pant 2:

195 lbs

(88 kg)

Gross weight

of all occu-

pants

175 lbs

(80 kg)

370 lbs

(168 kg)

Step 3

Example 1 Example 2

Permissible

load (maxi-

mum gross

vehicle weight

rating from

the Tire and

Loading Infor-

mation plac-

ard minus the

gross weight

of all occu-

pants)

1500 lbs

(680 kg)

Ò175 lbs

(80 kg) =

1325 lbs

(600 kg)

1500 lbs

(680 kg)

Ò370 lbs

(168 kg) =

1130 lbs

(512 kg)

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

(

Y

page 322).

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 per-

missible weight that can be carried by one

axle (front or rear axle).
To ensure that your vehicle does not exceed

the maximum permissible values (gross vehi-

cle weight and maximum gross axle weight

rating), have your loaded vehicle (including

driver, occupants and the load) weighed on a

suitable vehicle weighbridge.

All about wheels and tires

Uniform Tire Quality Grading Stand-

ards

Overview of Tire Quality Grading Stand-

ards

Uniform Tire Quality Grading Standards are

U.S. government specifications. Their pur-

pose is to provide drivers with uniform relia-

ble 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 informa-

tion can be found on the tire sidewall between

the tread shoulder and maximum tire width.

324

All about wheels and tires

Wheels

and

tires