The Mercedes-Benz C 220 CDI BlueEFFICIENCY, produced from 2011 to 2014, was a key variant within the W204 C-Class facelift range. Positioned as a fuel-efficient and refined option, it catered to buyers seeking a balance between performance and economy in the compact executive segment. This model represented a significant update to the W204 platform, introducing revised styling, enhanced technology, and improved engine efficiency. The C 220 CDI BlueEFFICIENCY aimed to provide a comfortable and sophisticated driving experience, appealing to both individual owners and fleet customers.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-class |
| Generation | C-class (W204, facelift 2011) |
| Type (Engine) | C 220 CDI BlueEFFICIENCY (170 Hp) 7G-TRONIC PLUS |
| Start of production | 2011 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6-6.4 l/100 km (39.2 – 36.8 US mpg) |
| Fuel consumption (extra urban) | 4.1-4.5 l/100 km (57.4 – 52.3 US mpg) |
| Fuel consumption (combined) | 4.8-5.2 l/100 km (49 – 45.2 US mpg) |
| CO2 emissions | 125-136 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 kg/Hp |
| Weight-to-torque ratio | 3.8 kg/Nm |
| Power | 170 Hp @ 3000-4200 rpm |
| Torque | 400 Nm @ 1400-2800 rpm (295.02 lb.-ft.) |
| 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 | 1535 kg (3384.1 lbs.) |
| Max. weight | 2125 kg (4684.82 lbs.) |
| Max load | 590 kg (1300.73 lbs.) |
| Trunk (boot) space | 475 l (16.77 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Length | 4591 mm (180.75 in.) |
| Width | 1770 mm (69.69 in.) |
| Height | 1447 mm (56.97 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1549 mm (60.98 in.) |
| Rear track | 1552 mm (61.1 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC PLUS |
Powertrain & Engine Architecture
The C 220 CDI BlueEFFICIENCY was powered by the OM651.911, 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 fuel efficiency. The ‘BlueEFFICIENCY’ designation indicated the inclusion of various technologies aimed at reducing emissions and improving fuel economy, including optimized combustion, reduced friction, and a more efficient cooling system. The engine utilized a second-generation common rail direct injection system, delivering fuel at extremely high pressures for improved atomization and combustion. A twin-turbocharger setup, incorporating a small, low-pressure turbo and a larger, high-pressure turbo, provided a broad torque curve and minimized turbo lag. The engine featured a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The 7G-TRONIC PLUS automatic transmission, a seven-speed unit, was standard. This transmission offered smooth and responsive shifting, contributing to both performance and fuel efficiency. It featured a torque converter lock-up clutch that engaged in most gears, reducing slippage and improving efficiency.
Driving Characteristics
The C 220 CDI BlueEFFICIENCY offered a comfortable and refined driving experience. While not overtly sporty, the 170 horsepower and 400 Nm (295 lb-ft) of torque provided adequate performance for everyday driving and highway cruising. Acceleration from 0-60 mph took around 7.7 seconds, making it competitive within its class. The 7G-TRONIC PLUS transmission was well-matched to the engine, providing smooth gear changes and contributing to a relaxed driving experience. Compared to the more powerful C 250 or C 350 models, the C 220 CDI offered less outright acceleration, but its superior fuel economy and lower running costs appealed to a different type of buyer. The automatic transmission, while convenient, didn’t offer the same level of driver engagement as the available six-speed manual gearbox.
Equipment & Trim Levels
The C 220 CDI BlueEFFICIENCY typically came well-equipped, reflecting Mercedes-Benz’s reputation for luxury and refinement. Standard features 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 (synthetic leather), with full leather options available as an upgrade. Optional extras included a sunroof, navigation system, premium sound system, parking sensors, and various driver assistance systems. The ‘BlueEFFICIENCY’ package itself included features like low rolling resistance tires and aerodynamic enhancements to improve fuel economy. Trim levels varied depending on the market, but generally offered increasing levels of luxury and technology.
Chassis & Braking
The W204 C-Class featured a sophisticated chassis design. The front suspension utilized a McPherson strut setup, while the rear employed a multi-link independent suspension. This configuration provided a good balance between ride comfort and handling. Stabilizer bars were fitted to both the front and rear axles to reduce body roll. Braking systems varied depending on the specification, but typically included ventilated discs at the front and either discs or drums at the rear. Anti-lock Braking System (ABS) and Electronic Stability Program (ESP) were standard safety features. The steering was a hydraulic power-assisted rack and pinion system, providing precise and responsive steering feel.
Market Reception & Comparison
The C 220 CDI BlueEFFICIENCY was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. However, some reviewers noted that the engine could be somewhat noisy under hard acceleration. Compared to other trims in the C-Class lineup, the C 220 CDI offered the best fuel economy, making it an attractive option for high-mileage drivers. Its reliability was generally good, although diesel engines can be more susceptible to issues with the fuel injection system and particulate filter over time. Competitors in this segment included the BMW 320d, Audi A4 2.0 TDI, and Volvo S60 D2.
Legacy
The OM651 engine, as used in the C 220 CDI BlueEFFICIENCY, has proven to be a durable and reliable powerplant. Well-maintained examples continue to be a common sight on used car lots. While the diesel particulate filter (DPF) can be a potential source of issues, particularly on vehicles primarily used for short journeys, the engine itself is generally robust. The C 220 CDI BlueEFFICIENCY remains a popular choice for buyers seeking a comfortable, fuel-efficient, and relatively affordable compact executive car. Its blend of practicality, refinement, and economy ensures its continued relevance in the used car market.
