The Mercedes-Benz C-Class Coupe (C204) facelift C 250 CDI Sport, produced from 2012 to 2015, represented a compelling blend of performance, efficiency, and style within the compact luxury coupe segment. Positioned as a mid-range offering in the C204 coupe lineup, it slotted between the entry-level C 220 CDI and the more potent C 350 models. This variant aimed to deliver a refined driving experience with a focus on fuel economy, appealing to buyers seeking a sophisticated and practical coupe without sacrificing driving enjoyment. It was a key model for Mercedes-Benz in Europe and other markets where diesel engines were highly favored, offering a premium alternative to gasoline-powered competitors.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-Class |
| Generation | C-Class Coupe (C204, facelift 2011) |
| Type (Engine) | C 250 CDI Sport (204 Hp) 7G-TRONIC |
| Start of production | 2012 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban (NEDC) | 6.5 l/100 km (36.2 US mpg, 43.5 UK mpg, 15.4 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 4.6 l/100 km (51.1 US mpg, 61.4 UK mpg, 21.7 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 5.3 l/100 km (44.4 US mpg, 53.3 UK mpg, 18.9 km/l) |
| CO2 emissions (NEDC) | 139 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.1 sec |
| Acceleration 0 – 62 mph | 7.1 sec |
| Acceleration 0 – 60 mph | 6.7 sec |
| Maximum speed | 240 km/h (149.13 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 7.8 kg/Hp, 128.7 Hp/tonne |
| Weight-to-torque ratio | 3.2 kg/Nm, 315.5 Nm/tonne |
| Power | 204 Hp @ 4200 rpm |
| Power per litre | 95.2 Hp/l |
| Torque | 500 Nm @ 1600-1800 rpm (368.78 lb.-ft. @ 1600-1800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 651.911 |
| Engine displacement | 2143 cm3 (130.77 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 99 mm (3.9 in.) |
| Compression ratio | 16.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Twin-Turbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1585 kg (3494.33 lbs.) |
| Max. weight | 2130 kg (4695.85 lbs.) |
| Max load | 545 kg (1201.52 lbs.) |
| Trunk (boot) space – minimum | 450 l (15.89 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4590 mm (180.71 in.) |
| Width | 1770 mm (69.69 in.) |
| Width including mirrors | 1997 mm (78.62 in.) |
| Height | 1406 mm (55.35 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1549 mm (60.98 in.) |
| Rear (Back) track | 1552 mm (61.1 in.) |
| Front overhang | 775 mm (30.51 in.) |
| Rear overhang | 1055 mm (41.54 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle (turning diameter) | 10.84 m (35.56 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission G-TRONIC PLUS |
| Front suspension | Independent type McPherson, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | Front wheel tires: 225/40 R18 Rear wheel tires: 255/35 R18 |
| Wheel rims size | Front wheel rims: 7.5J x 18 Rear wheel rims: 8J x 18 |
Powertrain & Engine Architecture
The C 250 CDI Sport was powered by the OM 651.911, a 2.1-liter inline-four cylinder diesel engine. This engine was a mainstay of the Mercedes-Benz lineup, known for its robust construction and efficiency. It featured common-rail direct injection, delivering fuel at extremely high pressure for optimized combustion. The engine employed a twin-turbocharger setup – a smaller turbo for quick response at low engine speeds and a larger turbo for increased power at higher RPMs. An intercooler further enhanced performance by cooling the compressed intake air. The DOHC (Double Overhead Camshaft) valvetrain, with four valves per cylinder, contributed to efficient gas exchange. The 7G-TRONIC PLUS seven-speed automatic transmission was standard, offering smooth and responsive gear changes. This transmission was known for its adaptability, adjusting shift points based on driving style and road conditions. The transmission’s gear ratios were tuned to balance fuel economy with acceptable acceleration.
Driving Characteristics
The C 250 CDI Sport offered a refined and comfortable driving experience. While not overtly sporty, the 204 horsepower and substantial 368 lb-ft of torque provided ample power for everyday driving and confident overtaking maneuvers. The 7.1-second 0-60 mph acceleration was respectable for a diesel coupe. The 7G-TRONIC transmission contributed to a seamless power delivery, minimizing shift shock. Compared to the C 350, the C 250 CDI Sport felt less urgent in its acceleration, but it offered significantly better fuel economy. Against the base C 220 CDI, the C 250 CDI Sport provided a noticeable performance upgrade without sacrificing fuel efficiency. The rear-wheel-drive configuration provided a balanced feel, although it wasn’t as engaging as some sportier coupes.
Equipment & Trim Levels
The “Sport” designation indicated a higher level of standard equipment. Typical features included sport seats, a sport steering wheel, aluminum interior trim, and exterior styling cues like a more aggressive front bumper and side skirts. Standard interior features included automatic climate control, a multi-function steering wheel, and a high-quality audio system. Optional extras included leather upholstery, a panoramic sunroof, a navigation system, and advanced driver-assistance systems like lane keeping assist and blind spot monitoring. The interior generally featured a dark color scheme with aluminum accents, emphasizing the sporty character of the trim.
Chassis & Braking
The C 250 CDI Sport utilized an independent suspension system at all four corners. The front suspension employed a McPherson strut design, while the rear featured a multi-link setup. Both ends were equipped with a transverse stabilizer bar to reduce body roll during cornering. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power. The anti-lock braking system (ABS) was standard, enhancing safety and stability. The suspension tuning was geared towards comfort and stability, rather than outright sportiness, providing a smooth ride over various road surfaces.
Market Reception & Comparison
The C 250 CDI Sport was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. The diesel engine was noted for its quiet operation and strong torque output. Some reviewers found the handling to be somewhat lacking in engagement compared to competitors like the BMW 3 Series Coupe. However, the C 250 CDI Sport’s combination of luxury, efficiency, and practicality made it a popular choice for buyers seeking a well-rounded coupe. Compared to the C 350, the C 250 CDI Sport offered a significant fuel economy advantage, making it a more sensible choice for those prioritizing running costs.
Legacy
The OM 651 engine family, including the 2.1-liter variant found in the C 250 CDI Sport, has proven to be remarkably durable and reliable. With proper maintenance, these engines can accumulate high mileage without major issues. On the used car market, the C 250 CDI Sport remains a desirable option, particularly for buyers seeking a fuel-efficient and comfortable coupe. However, potential buyers should be aware of the potential for diesel particulate filter (DPF) issues, especially if the vehicle has primarily been used for short trips. Overall, the C 250 CDI Sport represents a well-engineered and well-equipped coupe that continues to offer a compelling value proposition in the used car market.
