Mercedes-Benz C-Class (W206) C 300 (258 hp) 9G-TRONIC
Gasoline engine with 258 hp (190 kW) and 148 lb-ft (200 Nm), built 2021–present, sedan body, rear-wheel drive. It is the most powerful gasoline version of the generation.
EnlargePower258 hp (190 kW)
Torque148 lb-ft (200 Nm)
0–62 mph6 s
Top speed155 mph (250 km/h, Electronically limited)
FuelGasoline
Specifications
Engine
| Engine version | C 300 (258 hp) 9G-TRONIC |
|---|---|
| Engine code | M 254 |
| Displacement | 2.0 L (1,999 cm³) |
| Cylinders | 4 |
| Cylinder layout | Inline |
| Engine position | Electric motor, integrated into transmission |
| Valves per cylinder | 4 |
| Valvetrain | DOHC |
| Fuel system | Direct injection |
| Engine systems | Start-stop system, particulate filter |
| Electric motor power | 20 hp |
| Electric motor torque | 148 lb-ft (200 Nm) |
Performance
| Power | 258 hp (190 kW) |
|---|---|
| Torque | 148 lb-ft (200 Nm) |
| 0–62 mph (0–100 km/h) | 6 s |
| Top speed | 155 mph (250 km/h, Electronically limited) |
Fuel economy and emissions
| Fuel | Gasoline |
|---|---|
| Highway | 36 mpg (6.6-7 l/100 km) |
| CO₂ emissions | 241 g/mi (150-169 g/km) |
| Emission standard | Euro 6d-ISC-FCM |
Body, dimensions and weight
| Body style | Sedan |
|---|---|
| Doors | 5 |
| Length | 187.0 in (4,751 mm) |
| Width | 71.7 in (1,820 mm) |
| Height | 56.6 in (1,438 mm) |
| Cargo volume | 16.1 cu ft (455 l) |
| Drag coefficient | 0.24 |
Drivetrain and chassis
| Drive | Rear-wheel drive |
|---|---|
| Steering | Electric power steering |
| Front suspension | Independent multi-link |
| Rear suspension | Independent multi-link |
| Tires | 225/50 R17 |
| Wheels | R17 |
| Driver assistance | ABS (Anti-lock braking system), 4-wheel steering (4WS, active rear steering) |
What to check on a Mercedes-Benz C-Class with this engine
- On a gasoline engine, check the oil consumption, the timing chain or belt and, on turbo engines, the turbocharger.
- Test the clutch or the automatic transmission from a cold start and in the low gears.
- Compare the odometer with the readings in the service records and in the VIN history report: a big gap means the mileage was rolled back.
Other Mercedes-Benz C-Class (W206) engines
| Engine | Fuel | Power | Combined |
|---|---|---|---|
| C 180 (170 hp) 9G-TRONIC | Gasoline | 170 hp (125 kW) | |
| C 200 (204 hp) 4MATIC 9G-TRONIC | Gasoline | 204 hp (150 kW) | |
| C 200 (204 hp) 9G-TRONIC | Gasoline | 204 hp (150 kW) | |
| C 220 d (200 hp) 9G-TRONIC | Diesel | 200 hp (147 kW) | |
| C 300 (258 hp) 4MATIC 9G-TRONIC | Gasoline | 258 hp (190 kW) | |
| C 300 d (265 hp) 9G-TRONIC | Diesel | 265 hp (195 kW) |