Mercedes-Benz S-Class W222 400 d Sedan
250 kW340 PS335 hp2017–2020
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- Power
- 250 kW 340 PS · 335 hp
- 0–100 km/h
- 5.4 s
- Fuel consumption
- 7.3 l/100 km
- Kerb weight
- 2,084 kg
- Length
- 5,146 mm
- Displacement
- 2,900 cm³
A 2.9-litre six-cylinder diesel engine with 250 kW (340 PS) powers the Mercedes-Benz S-Class W222 2.9 S 400 d sedan.
It is the most powerful of the 3 diesel versions in the S-Class W222 range, with 32% more output than the entry 3.0 S 350 BlueTEC / S 350 d (190 kW). In figures, it sprints from 0 to 100 km/h in 5.4 s, uses 7.3 l/100 km, tips the scales at 2,084 kg and has 163 PS per tonne to work with.
What the figures favour in the S-Class W222 2.9 S 400 d
- Most powerful diesel version of the S-Class W222: 250 kW (340 PS)
- Sports-car acceleration: 0–100 km/h in 5.4 s
Dimensions drawing
To scale · width without mirrors
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grid 500 mm1 ft Side view: dashed lines mark the axles
Engine
| Engine code | OM656 |
|---|---|
| Fuel | Diesel |
| Displacement | 2,900 cm³ 2.9 l · 177 cu in |
| Cylinders | 6 |
| Power | 250 kW 340 PS · 335 hp |
Performance
| 0–100 km/h | 5.4 s 0–62 mph |
|---|---|
| Fuel consumption | 7.3 l/100 km 38.7 mpg UK · 32.2 mpg US |
| CO₂ emissions | 193 g/km |
Dimensions and weight
| Length | 5,146 mm 202.6 in |
|---|---|
| Width | 1,899 mm 74.8 in |
| Height | 1,496 mm 58.9 in |
| Wheelbase | 3,035 mm 119.5 in |
| Kerb weight | 2,084 kg 4,594 lb |
Production
| Body type | Sedan |
|---|---|
| Years | 2017–2020 |
| Generation | S-Class W222 (2013–2020) |
Mercedes-Benz OM656 engine Compare size All S-Class W222 versions All Mercedes-Benz spec sheets
Data sources
Data checked by an editor against the sources below.
Data: 15 of 25 fields · 2 sources · data changed 23 Oct 2026