The Comparative Analysis :
Mercedes SLK 250 CDI (12 - 15) vs. Mercedes SLK 350 7G-TRONIC PLUS (11 - 16)
€ 40,100

€ 53,100

€ 40,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 53,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of the SLK 250 CDI and the SLK 350 are absolutely identical. Both are 162.8 inches long, 71.3 inches wide and 51.2 inches tall.
SLK 250 CDI
SLK 350
51.2
71.3
79
51.2
71.3
79
71.3 in
Width
71.3 in
79 in
Width Incl. Mirrors
79 in
51.2 in
Height
51.2 in
95.7
162.8
95.7
162.8
162.8 in
Length
162.8 in
95.7 in
Wheelbase
95.7 in
Vehicle Weight
SLK 250 CDI
SLK 350
3461 lb
Curb Weight
3395 lb
4156 lb
Gross Vehicle
Weight
Weight
4090 lb

Weight Difference:
66 lb
1.91 %

General
SLK 250 CDI
SLK 350
R172
Generation
R172
Roadster
Car Body Style
Roadster
Diesel
Fuel Type
Mid-Grade Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

6-speed manual transmission
Transmission
7-speed automatic transmission
Engine
SLK 250 CDI
SLK 350
Straight-four diesel engine with two turbochargers (biturbo)
Engine Type
V6 gasoline engine (naturally aspirated engine)
Mercedes-Benz OM 651
Engine Series
Mercedes-Benz M 276
OM 651.980
Engine Code
M 276.956


4
Valves
4
4
Cylinders
6
2.1 L / 103 cu in
Displacement
3.5 L / 171 cu in
201 hp
at 4200 rpm
Power
302 hp
at 6500 rpm
SLK 250 CDI
201 hp
302 hp
SLK 350
369 lb‑ft
at 1600 rpm
Max. Torque
273 lb‑ft
at 3500 rpm
SLK 250 CDI
369 lb‑ft
273 lb‑ft
SLK 350
Performance
SLK 250 CDI
SLK 350
152 mph
Maximum Speed
155 mph
6.5 sec
Acceleration 0 to 62 mph
5.6 sec
62 mph
62
mph
mph
295 ft
0.000 sec

SLK 250 CDI
62 mph
62
mph
mph
256 ft
0.000 sec

SLK 350
▶ REPLAY
17.22 lb/hp
Weight-to-Power Ratio
11.24 lb/hp
SLK 250 CDI
17.22 lb/hp
11.24 lb/hp
SLK 350
Fuel Economy / Emissions
SLK 250 CDI
SLK 350
Fuel Economy
49 mpg
combined
33 mpg
SLK 250 CDI
49 mpg
33 mpg
SLK 350
38 mpg
city
24 mpg
59 mpg
highway
43 mpg
15.9 gal
Fuel Tank Capacity
15.9 gal
777 mi
Range
525 mi
SLK 250 CDI
777 mi
525 mi
SLK 350
Environmental Impact
98.8 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
134.5 kWh
SLK 250 CDI
98.8 kWh
134.5 kWh
SLK 350
Euro 5
Emission Standard
Euro 5 / Euro 6
200 g/mi (NEFZ)
CO2 Emissions
269 g/mi (NEFZ)
Practical Convenience
SLK 250 CDI
SLK 350
2
Doors
2
2
No. of Seats
2
694 lb
Maximum Payload
694 lb
9.5 cu ft
Trunk Volume
9.5 cu ft








No data
Cargo Volume (Seats Down)
No data