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)
Tread
The part of the tire that comes into contact
with the road.
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.
270Definition of terms for tires and loadingTires and wheels
The water in the engine cooling system must
meet minimum requirements, which are
usually satisfied by normal drinking water. If
you are unsure about the water quality,
contact an authorized Mercedes-Benz
Center.
Windshield/headlamp cleaning
system
GWARNING
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engine parts, because it may
ignite and burn. You could be seriously
burned.
Use MB SummerFit windshield washer
concentrate at temperatures above freezing:
XMix 1 part MB SummerFit to 100 parts
water (1.34 fl oz[40 ml] to 1 gal[4.0 l]
water).
Use freely available premixed windshield
washer concentrate at temperatures below
freezing:
XMix 1 part MB SummerFit to 100 parts
windshield washer concentrate
(1.34 fl oz[40 ml] to 1 gal[4.0 l] windshield
washer concentrate).
Vehicle data, Coupe
The data stated here specifically refers to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
Vehicle dimensionsVehicle length182.7 in (4640 mm)Vehicle width
including exterior
mirrors81.7 in (2075 mm)Vehicle height49.7 in (1262 mm)Vehicle dimensionsWheelbase105.5 in (2680 mm)Front track66.2 in (1682 mm)Rear track65.0 in (1651 mm)Ground clearance3.9 in (99 mm)Turning circle39.0 ft (11.9 m)Vehicle weightMaximum trunk
load137 lb (62 kg)
Vehicle data, Roadster
The data stated here specifically refers to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
Vehicle dimensionsVehicle length182.7 in (4640 mm)Vehicle width
including exterior
mirrors81.7 in (2075 mm)Vehicle height49.6 in (1261 mm)Wheelbase105.5 in (2680 mm)Front track66.2 in (1682 mm)Rear track65.0 in (1651 mm)Ground clearance3.9 in (99 mm)Turning circle39.0 ft (11.9 m)Vehicle weightMaximum trunk
load137 lb (62 kg)284Vehicle data, RoadsterTechnical data
