The Comparative Analysis :
Mercedes S 350 d 9G-TRONIC (17 - ..) vs. Mercedes S 420 CDI 7G-TRONIC (06 - 09)
€ 85,600

€ 91,100

€ 85,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 91,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The S 350 d is a little bigger in every dimension. It's 1.8 inches longer, 1.1 inches wider and 0.9 inches taller than the S 420 CDI.
S 350 d
S 420 CDI
58.9
74.8
83.9
58
73.7
83.5
74.8 in
Width
73.7 in
83.9 in
Width Incl. Mirrors
83.5 in
58.9 in
Height
58 in
119.5
201.8
119.5
200
201.8 in
Length
200 in
119.5 in
Wheelbase
119.5 in
Vehicle Weight
S 350 d
S 420 CDI
4343 lb
Curb Weight
4608 lb
5930 lb
Gross Vehicle
Weight
Weight
5820 lb

Weight Difference:
265 lb
5.75 %

General
S 350 d
S 420 CDI
W222/X222
Generation
W221
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

9-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
S 350 d
S 420 CDI
Straight-six diesel engine with turbocharger
Engine Type
V8 diesel engine with turbocharger
Mercedes-Benz OM 656
Engine Series
Mercedes-Benz OM 629
OM 656.929
Engine Code
OM 629.911


4
Valves
4
6
Cylinders
8
2.9 L / 142 cu in
Displacement
4 L / 196 cu in
282 hp
at 3400 rpm
Power
316 hp
at 3600 rpm
S 350 d
282 hp
316 hp
S 420 CDI
443 lb‑ft
at 1200 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
S 350 d
443 lb‑ft
538 lb‑ft
S 420 CDI
Performance
S 350 d
S 420 CDI
155 mph
Maximum Speed
155 mph
6 sec
Acceleration 0 to 62 mph
6 sec
62 mph
62
mph
mph
272 ft
0.000 sec

S 350 d
62 mph
62
mph
mph
272 ft
0.000 sec

S 420 CDI
▶ REPLAY
15.4 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
S 350 d
15.4 lb/hp
14.58 lb/hp
S 420 CDI
Fuel Economy / Emissions
S 350 d
S 420 CDI
Fuel Economy
46 mpg
combined
25 mpg
S 350 d
46 mpg
25 mpg
S 420 CDI
37 mpg
city
18 mpg
53 mpg
highway
33 mpg
18.5 gal
Fuel Tank Capacity
23.8 gal
853 mi
Range
595 mi
S 350 d
853 mi
595 mi
S 420 CDI
Environmental Impact
104.9 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).
193.4 kWh
S 350 d
104.9 kWh
193.4 kWh
S 420 CDI
Euro 6
Emission Standard
Euro 4 III
216 g/mi (NEFZ)
CO2 Emissions
398 g/mi (NEFZ)
Practical Convenience
S 350 d
S 420 CDI
4
Doors
4
5
No. of Seats
5
1587 lb
Maximum Payload
1213 lb
14.4 cu ft
Trunk Volume
15.9 cu ft










No data
Cargo Volume (Seats Down)
No data