The Mercedes-Benz C-Class Coupe (C204) facelift, specifically the C 220 CDI BlueEFFICIENCY Edition producing 170 horsepower, was a key offering in the premium compact coupe segment from 2012 to 2015. Positioned as a fuel-efficient and refined option within the C-Class Coupe range, it aimed to attract buyers seeking a balance between performance, luxury, and economy. This variant sat in the mid-range of the C-Class Coupe lineup, offering a step up from the base C 180 models while remaining more accessible than the higher-performance C 350 or AMG variants.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-Class |
| Generation | C-Class Coupe (C204, facelift 2011) |
| Type (Engine) | C 220 CDI BlueEFFICIENCY Edition (170 Hp) |
| Start of production | 2012 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 5.2 l/100 km (45.2 US mpg, 54.3 UK mpg, 19.2 km/l) |
| Fuel consumption (extra urban) | 3.5 l/100 km (67.2 US mpg, 80.7 UK mpg, 28.6 km/l) |
| Fuel consumption (combined) | 4.1 l/100 km (57.4 US mpg, 68.9 UK mpg, 24.4 km/l) |
| CO2 emissions | 109 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.4 sec |
| Acceleration 0 – 62 mph | 8.4 sec |
| Acceleration 0 – 60 mph | 8 sec (Calculated) |
| Maximum speed | 232 km/h (144.16 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.1 kg/Hp, 110.4 Hp/tonne |
| Weight-to-torque ratio | 3.9 kg/Nm, 259.7 Nm/tonne |
| Power | 170 Hp @ 3000-4200 rpm |
| Power per litre | 79.3 Hp/l |
| 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 | 1540 kg (3395.12 lbs.) |
| Max. weight | 2085 kg (4596.64 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) |
| 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.) |
| Minimum turning circle | 10.84 m (35.56 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 6 |
| Gearbox type | Manual |
| 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 |
| Tires size | 205/55 R16 |
| Wheel rims size | 7J x 16 |
INTRODUCTION
The C 220 CDI BlueEFFICIENCY Edition Coupe, launched in 2012 as part of the C204 facelift, represented Mercedes-Benz’s commitment to offering a sophisticated and economical coupe experience. Built on the W204 platform (specifically the C204 coupe variant), this model benefited from the updates introduced in the 2011 facelift, including revised styling, improved interior materials, and enhanced technology. The “BlueEFFICIENCY” designation signified Mercedes-Benz’s efforts to improve fuel economy and reduce emissions through various engineering optimizations. This variant was primarily aimed at the European market, where diesel engines were – and continue to be – highly popular due to their fuel efficiency and torque characteristics.
Powertrain & Engine Architecture
At the heart of the C 220 CDI BlueEFFICIENCY Edition lies the OM 651.911, a 2.1-liter inline-four cylinder diesel engine. This engine is a highly refined unit, featuring common-rail direct injection and a sophisticated twin-turbocharger system. The twin-turbo setup, consisting of a small, low-pressure turbo and a larger, high-pressure turbo, works in tandem to provide both excellent low-end torque and strong top-end power. The engine also incorporates an intercooler to further enhance performance by cooling the intake air. The engine produces 170 horsepower at 3000-4200 rpm and a substantial 400 Nm (295 lb-ft) of torque between 1400 and 2800 rpm. This broad torque curve contributes to effortless cruising and responsive acceleration. The engine’s high compression ratio of 16.2:1 is typical for diesel engines and contributes to its efficiency. The C 220 CDI was typically paired with a 6-speed manual transmission, although a 7G-TRONIC PLUS automatic transmission was also available as an option. The automatic transmission offered smooth and efficient gear changes, further enhancing the driving experience.
Driving Characteristics
The C 220 CDI BlueEFFICIENCY Edition Coupe offered a comfortable and refined driving experience. The 170 hp engine, while not overtly sporty, provided ample power for everyday driving and highway cruising. The substantial torque output meant that overtaking maneuvers could be executed with ease, even with a full load of passengers and luggage. Compared to the more powerful C 350 Coupe, the C 220 CDI prioritized fuel economy and relaxed cruising over outright performance. The manual transmission, while engaging for driving enthusiasts, required more driver involvement than the optional automatic. The suspension setup, tuned for comfort, absorbed bumps and imperfections in the road well, providing a smooth ride. Steering was precise and well-weighted, offering a good level of feedback. The rear-wheel-drive configuration contributed to balanced handling, although it could be less forgiving in slippery conditions compared to all-wheel-drive variants.
Equipment & Trim Levels
The C 220 CDI BlueEFFICIENCY Edition came standard with a generous array of features, reflecting its position as a premium coupe. Standard equipment typically included automatic climate control, a multi-function steering wheel, power windows and mirrors, and a high-quality audio system. Upholstery was typically a combination of fabric and Artico (Mercedes-Benz’s synthetic leather) or full leather as an option. Optional extras included a panoramic sunroof, a navigation system, heated seats, and a premium sound system. The “BlueEFFICIENCY Edition” package also included specific aerodynamic enhancements designed to improve fuel efficiency, such as a lowered suspension and optimized underbody panels.
Chassis & Braking
The C 220 CDI Coupe featured a McPherson strut front suspension and a multi-link rear suspension, providing a good balance between comfort and handling. 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, ensuring safe and controlled braking performance. The steering system utilized a hydraulic power steering rack and pinion, providing precise and responsive steering feel.
Market Reception & Comparison
The C 220 CDI BlueEFFICIENCY Edition Coupe was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. However, some critics noted that the engine, while capable, lacked the outright performance of some of its rivals. Compared to the C 350 Coupe, the C 220 CDI offered significantly better fuel economy but less power. Against competitors like the BMW 3 Series Coupe and Audi A5 Coupe, the C 220 CDI held its own in terms of refinement and features, but its diesel engine was a distinguishing factor, appealing to buyers prioritizing economy over outright performance.
Legacy
The OM 651 engine family, including the version used in the C 220 CDI, has proven to be remarkably durable and reliable. With proper maintenance, these engines can easily exceed 200,000 miles. The C 220 CDI BlueEFFICIENCY Edition Coupe remains a popular choice in the used car market, particularly for buyers seeking a stylish and economical coupe. While modern cars offer more advanced technology and even better fuel economy, the C 220 CDI continues to offer a compelling combination of luxury, performance, and value. The availability of parts and a well-established network of Mercedes-Benz service centers contribute to its continued appeal.
