Mercedes Benz 2009 M-Class User Manual

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396
Operation
Tires and wheels
Maximum load rating
The maximum load in kilograms and 
pounds that can be carried by the tire.
Maximum loaded vehicle weight
The sum of curb weight, accessory weight, 
total load limit, and production options 
weight.
Maximum tire inflation pressure
This number is the greatest amount of air 
pressure that should ever be put in the tire 
under normal driving conditions.
Normal occupant weight
The number of occupants the vehicle is 
designed to seat, multiplied by 
68 kilograms (150 lbs).
Occupant distribution
The distribution of occupants in a vehicle 
at their designated seating positions.
Production options weight
The combined weight of those installed 
regular production options weighing over 
5 lbs (2.3 kilograms) in excess of those 
standard items which they replace, not 
previously considered in curb weight or 
accessory weight, including heavy duty 
brakes, ride levelers, roof rack, heavy duty 
battery, and special trim.
PSI (Pounds per square inch)
A standard unit of measure for air pressure 
-> bar, kilopascal (kPa).
Recommended tire inflation pressure
Recommended tire inflation pressure 
listed on placard located on driver’s door 
B-pillar for normal driving conditions. 
Provides best handling, tread life and 
riding comfort.
Rim
A metal support for a tire or a tire and tube 
assembly upon which the tire beads are 
seated.
Sidewall
The portion of a tire between the tread and 
the bead.
TIN (Tire Identification Number)
Unique identifier which facilitates efforts 
by tire manufacturers to notify purchasers 
in recall situations or other safety matters 
concerning tires and gives purchases the 
means to easily identify such tires. The TIN 
is comprised of “Manufacturer’s identifica-
tion mark”, “Tire size”, “Tire type code” 
and “Date of manufacture”.
Tire load rating
Numerical code associated with the 
maximum load a tire can support.