The Comparative Analysis :
Mercedes S 420 CDI long 7G-TRONIC (06 - 09) vs. Mercedes S 400 d 4MATIC 9G-TRONIC (17 - ..)
€ 98,900
€ 94,200
€ 98,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 94,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The S 420 CDI long is 3.3 inches longer, 1.1 inches narrower and 0.9 inches lower than the S 400 d.
S 420 CDI long
S 400 d
58
73.7
83.5
58.9
74.8
83.9
73.7 in
Width
74.8 in
83.5 in
Width Incl. Mirrors
83.9 in
58 in
Height
58.9 in
124.6
205.1
119.5
201.8
205.1 in
Length
201.8 in
124.6 in
Wheelbase
119.5 in
Vehicle Weight
S 420 CDI long
S 400 d
4718 lb
Curb Weight
4542 lb
5864 lb
Gross Vehicle
Weight
Weight
6085 lb
Weight Difference:
176 lb
3.73 %
General
S 420 CDI long
S 400 d
W221
Generation
W222/X222
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)
7-speed automatic transmission
Transmission
9-speed automatic transmission
Engine
S 420 CDI long
S 400 d
V8 diesel engine with turbocharger
Engine Type
Straight-six diesel engine with turbocharger
Mercedes-Benz OM 629
Engine Series
Mercedes-Benz OM 656
OM 629.911
Engine Code
OM 656.929
4
Valves
4
8
Cylinders
6
4 L / 196 cu in
Displacement
2.9 L / 142 cu in
316 hp
at 3600 rpm
Power
335 hp
at 3600 rpm
S 420 CDI long
316 hp
335 hp
S 400 d
538 lb‑ft
at 2200 rpm
Max. Torque
516 lb‑ft
at 1200 rpm
S 420 CDI long
538 lb‑ft
516 lb‑ft
S 400 d
Performance
S 420 CDI long
S 400 d
155 mph
Maximum Speed
155 mph
6 sec
Acceleration 0 to 62 mph
5.2 sec
62 mph
62
mph
mph
272 ft
0.000 sec
S 420 CDI long
62 mph
62
mph
mph
236 ft
0.000 sec
S 400 d
▶ REPLAY
14.93 lb/hp
Weight-to-Power Ratio
13.56 lb/hp
S 420 CDI long
14.93 lb/hp
13.56 lb/hp
S 400 d
Fuel Economy / Emissions
S 420 CDI long
S 400 d
Fuel Economy
25 mpg
combined
42 mpg
S 420 CDI long
25 mpg
42 mpg
S 400 d
18 mpg
city
35 mpg
33 mpg
highway
49 mpg
23.8 gal
Fuel Tank Capacity
18.5 gal
595 mi
Range
777 mi
S 420 CDI long
595 mi
777 mi
S 400 d
Environmental Impact
193.4 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).
115.2 kWh
S 420 CDI long
193.4 kWh
115.2 kWh
S 400 d
Euro 4 III
Emission Standard
Euro 6
398 g/mi (NEFZ)
CO2 Emissions
237 g/mi (NEFZ)
Practical Convenience
S 420 CDI long
S 400 d
4
Doors
4
5
No. of Seats
5
1146 lb
Maximum Payload
1543 lb
15.9 cu ft
Trunk Volume
14.4 cu ft
No data
Cargo Volume (Seats Down)
No data
