Example: steps 1 to 3
The following table shows examples on how to calculate total and cargo load capacities with
varying
seating configurations and number and size of occupants. The following examples use
a maximum load of 1500 lbs (680 kg). This is for illustration purposes only. Make sure you
are using the actual load limit for your vehicle stated on your vehicle's Tire and Loading
Information placard (Y page 328).
The higher the weight of all the occupants, the smaller the maximum load for luggage.
Additional information when towing a trailer ( Y page 358).
Step 1 Example 1 Example 2 Example 3
Combined maximum
weight of occupants and
cargo (data from the Tire
and Loading Information
placard)
1500 lbs (680 kg) 1500 lbs (680 kg) 1500 lbs (680 kg)
Step 2
Example 1 Example 2 Example 3
Number of
people in the
vehicle
(driver
and
occupants) 5 3 1
Distribution of
the occupants
Front: 2
Rear: 3 Front: 1
Rear: 2 Front: 1
Weight of the
occupants
Occupant 1: 150 lbs
(68 kg)
Occupant 2:
180 lbs
(82 kg)
Occupant 3: 160 lbs
(73 kg)
Occupant 4: 140 lbs
(63 kg)
Occupant 5: 120 lbs
(54 kg) Occupant 1: 200 lbs
(91 kg)
Occupant 2:
190 lbs
(86 kg)
Occupant 3: 150 lbs
(68 kg) Occupant 1:
150 lbs (68 kg)
Gross weight
of all
occupants
750 lbs (340 kg) 540 lbs (245 kg) 150 lbs (68 kg)Loading the vehicle
331
Wheels and tires Z
Step 3
Example 1 Example 2 Example 3
Permissible load
(maximum gross
vehicle weight
rating
from the Tire
and Loading
Information
placard minus the
gross weight of all
occupants) 1500 lbs (680 kg)
Ò750 lbs (340 kg) =
750 lbs (340 kg) 1500 lbs (680 kg)
Ò540 lbs (245 kg) =
960 lbs (435 kg) 1500 lbs (680 kg)
Ò150 lbs (68 kg) =
1350 lbs (612 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 328).
Permissible gross vehicle weight: the
gross weight of the vehicle, all passengers,
load and trailer load/noseweight (if
applicable) must not exceed the permissible
gross vehicle weight.
Gross axle weight rating: the maximum
permissible 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
vehicle weight and maximum gross axle
weight rating), have your loaded vehicle
(including driver, occupants, cargo, and full
trailer load if applicable) weighed on a
suitable vehicle weighbridge. Trailer load/noseweight
The
trailer load/noseweight affects the gross
weight of the vehicle. If a trailer is attached,
the trailer load/noseweight is included in the
load along with occupants and luggage. The
trailer load/noseweight is usually approximately 10%
of the gross weight of the
trailer and its load.
Only use a trailer tow hitch that has been
approved for your vehicle by Mercedes-Benz.
Comply with the manufacturer's operating
instructions for operation, care and
maintenance. Uniform Tire Quality Grading
Standards
Overview of Tire Quality Grading
Standards
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: : tread wear
grade, ; traction grade and = temperature
grade. These regulations do not apply to 332
Uniform Tire Quality Grading Standards
Wheels and tires
Bead
The tire bead ensures that the tire sits
securely
on the wheel. There are several steel
wires in the bead to prevent the tire from
coming loose from the wheel rim.
Sidewall The part of the tire between the tread and the
bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
parts and more than 2.3 kg
(5 lbs). These
optional extras, such as high-performance
brakes, level control, a roof rack or a high-
performance battery, are not included in the
curb weight and the weight of the
accessories.
TIN (Tire Identification Number) This is a unique identifier which can be used
by a tire manufacturer to identify tires, for
example
for a product recall, and thus identify
the purchasers. The TIN is made up of the
manufacturer's identity code, tire size, tire
type code and the manufacturing date.
Load bearing index The load bearing index (also load index) is a
code
that contains the maximum load bearing
capacity of a tire.
Traction Traction is the result of friction between the
tires and the road surface.
TWR (Tongue Weight Rating)
The TWR specifies the maximum permissible
weight
that the ball coupling of the trailer tow
hitch can support. Treadwear indicators Narrow bars (tread wear bars) that are
distributed
over the tire tread. If the tire tread
is level with the bars, the wear limit of á in
(1.6 mm) has been reached.
Occupant distribution The distribution of occupants in a vehicle at
their designated seating positions.
Total load limit
Nominal load and luggage load plus 150 lbs
(68 kg) multiplied by the number of seats in
the vehicle.
Changing a wheel
Flat tire
The "Breakdown assistance" section
(Y
page 304) contains information and notes
on how to deal with a flat tire. Interchanging the wheels
G
WARNING
Rotate front and rear wheels only if the tires
are of the same dimension.
If your vehicle is equipped with mixed-size
tires
(different tire dimensions front vs. rear),
tire rotation is not possible. G
WARNING
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
96 lb-ft (130 Nm
).
Only use genuine Mercedes-Benz wheel bolts
specified for your vehicle's rims.
! On vehicles equipped with a tire pressure
monitor, electronic components are
located in the wheel. 340
Changing a wheel
Wheels and tires
X
Clean the wheel and wheel hub contact
surfaces.
X Place the new wheel on the wheel hub and
push it on.
X Tighten the wheel bolts until they are
finger-tight.
Lowering the vehicle G
WARNING
The wheels could work loose if the wheel nuts
and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed. X
Open the pressure release screw on the
jack using the pump lever
(Y page 342) by
approximately one turn.
X Lower the vehicle until it is once again
standing firmly on the ground.
X Place the jack to one side.
X Tighten the wheel bolts evenly in a
crosswise pattern in the sequence
indicated ( : to A). The specified
tightening torque is 96 lb-ft
(130 Nm).
X Disassemble the pump lever.
X Push the jack piston back in and close the
drain plug.
X Use the bolts to secure the faulty wheel to
the spare wheel bracket ( Y page 303).X
Stow the jack and the vehicle tools in the
vehicle again.
X Check the tire pressure of the newly
installed wheel and adjust it if necessary.
A table with the tire pressures for your
vehicle can be found on the B-pillar on the
driver's side. Wheel and tire combinations
General notes
G
WARNING
Replace rims or tires with the same
designation,
manufacturer and type as shown
on the original part. For further information
contact an authorized Mercedes-Benz Center.
If incorrectly sized rims and tires are
mounted, the wheel brakes or suspension
components can be damaged. Also, the
operating clearance of the wheels and the
tires may no longer be correct. G
WARNING
Replace rims or tires with the same
designation,
manufacturer and type as shown
on the original part. For further information
contact an authorized Mercedes-Benz Center.
If incorrectly sized rims and tires are
mounted, the wheel brakes or suspension
components can be damaged. Also, the
operating clearance of the wheels and the
tires may no longer be correct. G
WARNING
If you notice sudden significant vibrations or
unusual handling performance or if you
suspect that damage has occurred to the
vehicle, you should activate the hazard
warning lamps, gently reduce speed and
carefully head for an area that is located at a
safe distance from the road.
Check the tires and the underside of the
vehicle for damage. If the vehicle seems
unsafe, have the vehicle towed away to the 344
Wheel and tire combinations
Wheels and tires
Useful information ............................
348
Genuine Mercedes-Benz parts ......... 348
Warranty ............................................ 348
Identification plates .........................349
Service
products and filling capaci-
ties ..................................................... 350
Vehicle data ...................................... 357
Trailer tow hitch ................................ 358 347
Technical data
Trailer tow hitch
Mounting dimensions
G
WARNING
Only have a trailer tow hitch retrofitted at a
qualified specialist workshop.
! If you have a trailer tow hitch retrofitted,
changes
to the engine cooling system may
be necessary, depending on the vehicle
type.
If you have a trailer tow hitch retrofitted,
observe the anchorage points on the
chassis frame. Anchorage points for the trailer tow hitch
:
Anchorage points
; Overhang dimension
For trailer tow hitches installed at the factory,
the overhang dimension including protective
covering is 35.2 in
(895 mm). Trailer loads
G 550
G 63 AMG
Permissible trailer load,
unbraked
1653 lbs
(750 kg) Permissible trailer load,
braked (at a minimum
gradient-climbing
capability of 12% from a
standstill)
7000 lbs
(3175 kg) Permissible rear axle
load when towing a
trailer (the drawbar
noseweight is not
included in the towing
weight)
4188 lbs
(1900 kg) Trailer drawbar noseweight
Number
of
passeng
ers
each
weighin
g
150 lbs
(68 kg) Seat
occupa
ncy Trunk
load Maximu
m
drawbar
nosewei
ght
2 Front
seats 220 lbs
(100 kg) 562 lbs
(255 kg) 3 2 front
seats
1 rear seat 176 lbs
(80 kg) 562 lbs
(255 kg) 4 2 front
seats
2 rear seats 132 lbs
(60 kg) 456 lbs
(207 kg) 5 2 front
seats
3 rear seats 0 lbs
(0 kg) 423 lbs
(192 kg) 358
Trailer tow hitch
Technical data
Ball position
Ball position of the ball coupling
When choosing a ball coupling, the
dimensions
stated in the illustration must not
be exceeded. Trailer tow hitch
359
Technical data Z