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Engine Technical Data
Engine type - Number of cylinders
V 6
Inline 6
Engine Code
OM 656 D 29 SCR
Fuel type
Petrol
Diesel
Fuel System
Direct Injection.
Common Rail
Engine Alignment
Longitudinal
Longitudinal
Engine Position
Front
Front
Engine displacement
182.8 cu-in / 2996 cm3
178.5 cu-in / 2925 cm3
Bore
3.46 inches
88.0 mm
3.23 inches
82.0 mm
Stroke
3.23 inches
82.1 mm
3.64 inches
92.4 mm
Number of valves
24
24
Aspiration
Turbo + Intercooler
Turbo Intercooler
Compression Ratio
10.7
15.5
Total System Power
335 HP / 340 PS / 250 kW
Total System Torque
516 lb-ft / 700 Nm
Horsepower
328 HP / 333 PS / 245 kW @ 5250-6000 rpm
335 HP / 340 PS / 250 kW @ 3600–4400 rpm
Maximum torque
354 lb-ft / 480 Nm @ 1600-4000 rpm
516 lb-ft / 700 Nm @ 1200 rpm
Drive wheels - Traction - Drivetrain
AWD
AWD
Transmission Gearbox - Number of speeds
9
9
Clutch Type
Automatic
Sequential Automatic
Size, Dimensions, Aerodynamics and Weight
Body
Cabrio
Cabrio
Num. of Doors
2
2
Num. of Seats
4
5
Seat distribution
2+2
Wheelbase
113.11 inches / 287.3 cm
113.11 inches / 287.3 cm
Length
190 inches / 482.6 cm
190 inches / 482.6 cm
Width
73.23 inches / 186.0 cm
73.23 inches / 186.0 cm
Height
56.22 inches / 142.8 cm
56.22 inches / 142.8 cm
Front Axle
62.91 inches / 159.8 cm
63.19 inches / 160.5 cm
Rear Axle
63.15 inches / 160.4 cm
63.35 inches / 160.9 cm
Front Brakes - Disc dimensions
Vented Discs
Vented Discs
Rear Brakes - Disc dimensions
Vented Discs
Vented Discs
Front Tyres - Rims dimensions
245/45 R18
245/45 R18
Rear Tyres - Rims dimensions
245/45 R18
245/45 R18
Front Wheels Width
8.0
Rear Wheels Width
8.0
Curb Weight
4266 lbs / 1935 kg
4691 lbs / 2128 kg
Dry Weight
4431 lbs / 2010 kg
Max. Towing Capacity Weight
3968 lbs / 1800 kg
Weight/Power Output Ratio
5.81 Kg/hp
6.26 Kg/hp
Trunk / Boot capacity
13.6 cu-ft / 385 L
- cu-ft / 310-385 L
Steering
Rack and pinion Electric
Turning circle
38.1 feet / 11.6 m
Front Suspension
Coil springs.
Independent Double wishbone. Coil Springs. Anti-roll bar.
Rear Suspension
Coil Springs.
Multi-link. Coil Springs. Anti-roll bar.
Top Speed
155 Mph / 250 km/h
155 Mph / 250 km/h
Acceleration 0 to 100 km/h (0 to 62 mph)
5.5 s
5.2 s
Fuel Consumption (Economy), Emissions and Range
Fuel Consumption - Economy - Combined
39 MPG
6 L/100 km
47 MPG UK
Fuel Consumption - Economy - City NEDC
21 MPG
11.2 L/100 km
25 MPG UK
Fuel Consumption - Economy - Open road NEDC
36 MPG
6.6 L/100 km
43 MPG UK
Fuel Consumption - Economy - Combined NEDC
28 MPG
8.3 L/100 km
34 MPG UK
39 MPG
6 L/100 km
47 MPG UK
Range
684 miles / 1100 km
Fuel Tank Capacity
17.4 gallons
66 L
14.5 UK gallons
17.4 gallons
66 L
14.5 UK gallons
CO2 emissions
187 g/Km (Mercedes Benz)
159 g/Km (Mercedes Benz)
Emission standard
Euro 6






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