Page 269 of 290

vehicle identification plate on the B-pillar on
the driver's side.
Speed rating
The speed rating is part of the tire
identification. It specifies the speed range for
which the tire is approved.
GVW (Gross Vehicle Weight)
The gross vehicle weight includes the weight
of the vehicle including fuel, tools, the spare
wheel, accessories installed, occupants,
luggage and the drawbar noseweight, if
applicable. The gross vehicle weight must not
exceed the gross vehicle weight rating
(GVWR) as specified on the vehicle
identification plate on the B-pillar on the
driver's side.
GVWR (Gross Vehicle Weight Rating)
The GVWR is the maximum permitted gross
weight of the fully loaded vehicle (weight of
the vehicle including all accessories,
occupants, fuel, luggage and the drawbar
noseweight if applicable). The gross vehicle
weight rating is specified on the vehicle
identification plate on the B-pillar on the
driver's side.
Maximum loaded vehicle weight
The maximum weight is the sum of the curb
weight of the vehicle, the weight of the
accessories, the total load limit and the
weight of the optional equipment installed at
the factory.
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa is the
equivalent of 1 psi. Another unit for tire
pressure is bar. There are 100 kilopascals
(kPa) to 1 bar.
Load index
In addition to the load-bearing index, the load
index may also be imprinted on the sidewall
of the tire. This specifies the load-bearing
capacity more precisely. Curb weight
The weight of a vehicle with standard
equipment including the maximum capacity
of fuel, oil and coolant. It also includes the air-
conditioning system and optional equipment
if these are installed in the vehicle, but does
not include passengers or luggage.
Maximum load rating
The maximum load rating in kilograms or
pounds is the maximum weight for which a
tire is approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one
tire.
Maximum load on one tire
Maximum load on one tire. This is calculated
by dividing the maximum axle load of one axle
by two.
PSI (pounds per square inch)
A standard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire
width in percent.
tire pressure
This is pressure inside the tire applying an
outward force to each square inch of the tire's
surface. The tire pressure is specified in
pounds per square inch (psi), in kilopascal
(kPa) or in bar. The tire pressure should only
be corrected when the tires are cold. For this,
the vehicle must have been stationary for at
least three hours or not have traveled more
than 1.6 km (1 mile) in this time.
Tire pressure of cold tires
The tires are cold:
R if the vehicle has been parked without
direct sunlight on the tires for at least three
hours and
R if the vehicle has not been driven more than
1 mile (1.6 km) All about wheels and tires
267Wheels and tires Z
Page 272 of 290

X
Fold both plates upwards 0043.
X Fold out lower plate 0044.
X Guide the lugs on the lower plate fully into
the openings in base plate 0087.Securing the vehicle on level ground
X
On level ground: place chocks or other
suitable items under the front and rear of
the wheel that is diagonally opposite the
wheel you wish to change. Securing the vehicle on slight downhill gradients
X
On downhill gradients: place chocks or
other suitable items in front of the wheels
of the front and rear axle. Raising the vehicle G
WARNING
If you do not position the jack correctly at the
appropriate jacking point of the vehicle, the
jack could tip over with the vehicle raised.
There is a risk of injury.
Only position the jack at the appropriate
jacking point of the vehicle. The base of the
jack must be positioned vertically, directly
under the jacking point of the vehicle.
The following must be observed when raising
the vehicle:
R to raise the vehicle, only use the vehicle-
specific jack that has been tested and
approved by Mercedes-Benz. If used
incorrectly, the jack could tip over with the
vehicle raised.
R the jack is designed only to raise and hold
the vehicle for a short time while a wheel
is being changed. It is not suited for
performing maintenance work under the
vehicle.
R avoid changing the wheel on uphill and
downhill slopes.
R before raising the vehicle, secure it from
rolling away by applying the electric
parking brake and positioning wheel
chocks. Never release the electric parking
brake while the vehicle is raised.
R the jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a
large, load-bearing underlay must be used.
On a slippery surface, a non-slip underlay
must be used, e.g. rubber mats.
R do not use wooden blocks or similar
objects as a jack underlay. Otherwise, the
jack will not be able to achieve its load-
bearing capacity due to the restricted
height.
R make sure that the distance between the
underside of the tires and the ground does
not exceed 1.2 in (3 cm).
R never place your hands and feet under the
raised vehicle. 270
Changing a wheelWheels and tires
Page 287 of 290

authorized Mercedes-Benz Center data for all
vehicle variants and trim levels. Coupe
0043Height when
opened(rear
spoiler retracted) 63.4 in (1610 mm)
0043Height when
opened(rear
spoiler extended) 66.0 in (1677 mm)
(rear spoiler
extended)
0043Range of
movement
exceeding vehicle
width 14.3 in (362 mm)
0044Height when
opened (exterior
mirrors folded in) 73.7 in (1873 mm)
(exterior mirrors
folded in)
0044Height when
opened (exterior
mirrors folded out) 76.6 in (1946 mm)
(exterior mirrors
folded out) Vehicle length
182.7 in (4640 mm)
Vehicle width
including exterior
mirrors
81.7 in (2075 mm)
Vehicle height
49.7 in (1262 mm)
Wheelbase
105.5 in (2680 mm)
Front track
66.2 in (1682 mm)
Rear track
65.0 in (1651 mm)
Ground clearance
3.9 in (99 mm)
Turning radius
47.6 ft (12.1 m)
Maximum trunk
load
137 lb (62 kg)
Vehicle data, Roadster
Dimensions and weights
The data stated here specifically refers to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center data for all
vehicle variants and trim levels. Roadster
0043Height when
opened(rear
spoiler retracted) 67.4 in (1713 mm)
0043Height when
opened(rear
spoiler extended) 68.2 in (1732 mm)Vehicle data, Roadster
285Technical data Z
Page 288 of 290
SLS AMG Roadster
Vehicle length
182.7 in (4640 mm)
Vehicle width
including exterior
mirrors
81.7 in (2075 mm)
Vehicle height
49.6 in (1261 mm)
Wheelbase
105.5 in (2680 mm)
Front track
66.2 in (1682 mm)
Rear track
65.0 in (1651 mm)
Ground clearance
3.9 in (99 mm)
Turning radius
39.7 ft (12.1 m)
Maximum trunk
load
137 lb (62 kg)286
Vehicle data, RoadsterTechnical data