Mercedes-Benz 2009 M-Class Operator's Manual page 252

Operation
Tires and wheels
you are using the actual load limit for your
vehicle stated on the vehicle's Tire and
Example Combined weight
limit of occupants
and cargo from Tire
and Loading
Information
placard
1 1 500 lbs
2 1 500 lbs
3 1 500 lbs
The higher the weight of all occupants, the
less cargo and luggage load capacity is
available.
For more information, see "Trailer tongue
load" ( Y page 251).
250
Loading Information placard (
Number of Seating
occupants configuration
(driver and
passengers)
5 front: 2
rear: 3
3 front: 1
rear: 2
1 front: 1
Certification label
Even after careful determination of the
combined weight of all occupants, cargo and
the trailer tongue load (if applicable)
( Y page 251) as to not exceed the
permissible load limit, you must make sure
your vehicle never exceeds the Gross Vehicle
Y page 249).
Occupants weight Combined
weight of all
occupants
Occupant 1: 150 lbs 750 lbs
Occupant 2: 180 lbs
Occupant 3: 160 lbs
Occupant 4: 140 lbs
Occupant 5: 120 lbs
Occupant 1: 200 lbs 540 lbs
Occupant 2: 190 lbs
Occupant 3: 150 lbs
Occupant 1: 150 lbs 150 lbs
Weight Rating (GVWR) and the Gross Axle
Weight Rating (GAWR) for either the front or
rear axle. You can obtain the GVWR and
GAWR from the certification label. The
certification label can be found on the driver's
door B-pillar, see the "Technical data" section
( Y page 397).
Available cargo/luggage
and trailer tongue weight
(total load limit from Tire
and Loading Information
placard minus combined
weight of all occupants)
1 500 lbs - 750 lbs = 750 lbs
1 500 lbs - 540 lbs = 960 lbs
1 500 lbs - 150 lbs = 1 350 lbs