The Mercedes-Benz C-Class Coupe (C204) facelift, produced from 2011 to 2015, represented a significant refinement of the second-generation C-Class. The C 220 CDI BlueEFFICIENCY, equipped with a 2.1-liter turbocharged diesel engine producing 170 horsepower and paired with the 7G-TRONIC PLUS seven-speed automatic transmission, occupied a key position in the lineup as a fuel-efficient and comfortable grand tourer. This variant aimed to balance performance with economy, appealing to buyers seeking a premium coupe experience without the higher running costs associated with more powerful engines.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-Class |
| Generation | C-Class Coupe (C204, facelift 2011) |
| Type (Engine) | C 220 CDI BlueEFFICIENCY (170 Hp) 7G-TRONIC PLUS |
| Start of production | 2011 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 6.1-6.5 l/100 km (38.6 – 36.2 US mpg) |
| Fuel consumption (extra urban) | 4.2-4.6 l/100 km (56 – 51.1 US mpg) |
| Fuel consumption (combined) | 4.9-5.3 l/100 km (48 – 44.4 US mpg) |
| CO2 emissions | 128-139 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.1 sec |
| Acceleration 0 – 62 mph | 8.1 sec |
| Acceleration 0 – 60 mph | 7.7 sec |
| Maximum speed | 231 km/h (143.54 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.1 kg/Hp |
| Weight-to-torque ratio | 3.9 kg/Nm |
| Power | 170 Hp @ 3000-4200 rpm |
| Torque | 400 Nm @ 1400-2800 rpm (295.02 lb.-ft. @ 1400-2800 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 | 1555 kg (3428.19 lbs.) |
| Max. weight | 2100 kg (4629.71 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) | 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 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 | 10.84 m (35.56 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 7 |
| Gearbox type | 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 | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 205/55 R16 |
| Wheel rims size | 7J x 16 |
INTRODUCTION
The C 220 CDI BlueEFFICIENCY Coupe, introduced with the 2011 facelift of the C204 generation, was a key component of Mercedes-Benz’s strategy to offer a compelling entry point into the C-Class coupe range. Built on the W204 platform (specifically adapted for coupe body style – 1HX0/A3), this variant combined the elegant styling of the coupe with the fuel efficiency and torque characteristics of a modern diesel engine. It was positioned as a more economical alternative to the C 250 and C 350 coupes, targeting buyers who prioritized long-distance comfort and lower running costs.
Powertrain & Engine Architecture
At the heart of the C 220 CDI BlueEFFICIENCY lay the OM 651.911 2.1-liter inline-four cylinder diesel engine. This engine was a cornerstone of Mercedes-Benz’s diesel offerings, known for its robust construction and advanced technology. It featured a common rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. The engine also 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 7G-TRONIC PLUS seven-speed automatic transmission was specifically tuned to complement the engine’s torque curve, providing smooth and efficient gear changes. This transmission offered both automatic and manual shift modes, allowing drivers to tailor the driving experience to their preferences. The ‘BlueEFFICIENCY’ designation indicated the inclusion of fuel-saving technologies such as start-stop functionality and optimized aerodynamics.
Driving Characteristics
The C 220 CDI BlueEFFICIENCY Coupe offered a refined and comfortable driving experience. While not overtly sporty, the 170 horsepower and 400 Nm (295 lb-ft) of torque provided ample power for everyday driving and effortless highway cruising. The 7G-TRONIC PLUS transmission contributed to smooth acceleration, and the relatively low engine speeds at cruising speeds helped to minimize noise and vibration. Compared to the more powerful C 250 or C 350 coupes, the C 220 CDI felt less urgent in its acceleration, with a 0-60 mph time of around 7.7 seconds. However, the abundance of low-end torque made it well-suited for overtaking maneuvers. The gear ratios were optimized for fuel efficiency, meaning the engine didn’t rev excessively at highway speeds. The rear-wheel-drive configuration provided a balanced feel, although it wasn’t as engaging as some of its rear-wheel-drive competitors.
Equipment & Trim Levels
The C 220 CDI BlueEFFICIENCY Coupe typically came standard with a generous array of features, reflecting its premium positioning. Standard equipment included automatic climate control, a multi-function steering wheel, power-adjustable front seats, and a high-quality audio system. Upholstery was typically a combination of Artico leatherette and fabric. Optional extras included full leather upholstery, a panoramic sunroof, a navigation system, and advanced driver-assistance systems such as lane keeping assist and blind spot monitoring. The interior design was characterized by Mercedes-Benz’s signature blend of luxury and functionality, with a focus on high-quality materials and a user-friendly interface.
Chassis & Braking
The C 220 CDI Coupe utilized a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable and controlled ride. Stabilizer bars were fitted to both axles to reduce body roll during cornering. The braking system consisted of ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) and electronic brakeforce distribution (EBD) were standard features. The suspension tuning was geared towards comfort rather than outright sportiness, prioritizing a smooth ride over sharp handling. The steering was hydraulic, providing a direct and responsive feel.
Market Reception & Comparison
The C 220 CDI BlueEFFICIENCY Coupe was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. However, some reviewers noted that its performance wasn’t as exhilarating as that of its more powerful siblings. Compared to the C 250 Coupe, the C 220 CDI offered significantly better fuel economy but lacked the same level of outright performance. The C 220 CDI also represented a more affordable entry point into the C-Class coupe range, making it an attractive option for buyers on a budget. Its fuel economy figures were competitive with other diesel-powered coupes in its class.
Legacy
The OM 651 engine, found in the C 220 CDI, has proven to be a remarkably durable and reliable powerplant. Properly maintained examples continue to provide years of service. The 7G-TRONIC PLUS transmission is also known for its longevity, although regular fluid changes are essential. In the used car market, the C 220 CDI Coupe represents a good value proposition, offering a blend of luxury, comfort, and fuel efficiency at a relatively affordable price. However, potential buyers should be aware of the potential for diesel particulate filter (DPF) issues, particularly on vehicles that have primarily been used for short journeys. Overall, the C 220 CDI BlueEFFICIENCY Coupe remains a desirable and practical choice for those seeking a stylish and economical grand tourer.
