The Mercedes-Benz E 220 CDI BlueEFFICIENCY Edition, produced from 2012 to January 2013, represented a fuel-conscious variant within the W212 E-Class range. Positioned as a mid-range offering, it aimed to deliver a balance of performance and economy, appealing to drivers seeking a refined executive sedan with lower running costs. This model was primarily marketed in Europe, where diesel engines held a significant market share, and focused on maximizing fuel efficiency through advanced engine technology and aerodynamic improvements. It slotted between the base E 200 CDI and the more powerful E 250 CDI in the lineup.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W212) |
| Type (Engine) | E 220 CDI BlueEFFICIENCY Edition (170 Hp) |
| Start of production | 2012 |
| End of production | January, 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 5.5 l/100 km (42.8 US mpg, 51.4 UK mpg, 18.2 km/l) |
| Fuel consumption (extra urban) | 4 l/100 km (58.8 US mpg, 70.6 UK mpg, 25 km/l) |
| Fuel consumption (combined) | 4.5 l/100 km (52.3 US mpg, 62.8 UK mpg, 22.2 km/l) |
| CO2 emissions | 119 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.7 sec |
| Acceleration 0 – 62 mph | 8.7 sec |
| Acceleration 0 – 60 mph | 8.3 sec |
| Maximum speed | 228 km/h (141.67 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.8 kg/Hp, 102.4 Hp/tonne |
| Weight-to-torque ratio | 4.2 kg/Nm, 241 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 651.924 |
| 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 | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1660 kg (3659.67 lbs.) |
| Max. weight | 2170 kg (4784.03 lbs.) |
| Max load | 510 kg (1124.36 lbs.) |
| Trunk (boot) space (minimum) | 540 l (19.07 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Length | 4868 mm (191.65 in.) |
| Width | 1854 mm (72.99 in.) |
| Width including mirrors | 2071 mm (81.54 in.) |
| Height | 1471 mm (57.91 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1598 mm (62.91 in.) |
| Rear track | 1614 mm (63.54 in.) |
| Front overhang | 841 mm (33.11 in.) |
| Rear overhang | 1153 mm (45.39 in.) |
| Minimum turning circle | 11.25 m (36.91 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 6 gears, manual transmission |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 205/60 R16 |
| Wheel rims size | 7J x 16 |
Powertrain & Engine Architecture
The E 220 CDI BlueEFFICIENCY Edition was powered by the OM651.924, 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. The ‘BlueEFFICIENCY’ designation indicated the inclusion of various fuel-saving technologies, including start-stop functionality and optimized engine management. The engine utilized a second-generation common rail direct injection system, delivering fuel at extremely high pressures for improved combustion and reduced emissions. A bi-turbocharger setup, employing a small and a large turbocharger, provided both low-end responsiveness and high-end power. The smaller turbocharger spooled up quickly at lower engine speeds, minimizing turbo lag, while the larger turbocharger took over at higher speeds to maintain power output. The engine featured a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, further enhancing breathing and efficiency. The 6-speed manual transmission was standard, offering precise gear changes and contributing to the car’s overall fuel economy.
Driving Characteristics
The 170 horsepower and 400 Nm (295 lb-ft) of torque delivered by the E 220 CDI provided adequate performance for everyday driving. Acceleration from 0 to 60 mph took approximately 8.3 seconds, and the car had a top speed of 141.67 mph. While not a sports sedan, the engine offered a broad torque curve, making it easy to maintain highway speeds and overtake slower vehicles. Compared to the more powerful E 250 CDI, the E 220 CDI felt less urgent in its acceleration, but the difference was often negligible in real-world driving conditions. The manual transmission, while engaging, required more driver involvement than the optional automatic transmission available on other E-Class models. The gear ratios were well-chosen to maximize fuel efficiency, but this sometimes came at the expense of outright performance. The suspension provided a comfortable ride, typical of Mercedes-Benz, absorbing bumps and imperfections in the road with ease.
Equipment & Trim Levels
The BlueEFFICIENCY Edition typically came well-equipped, reflecting its position as a mid-range model. Standard features included automatic climate control, a multi-function steering wheel, power windows and mirrors, and a basic audio system. Upholstery was typically cloth, although leather options were available. Optional extras included a sunroof, upgraded audio systems, navigation, parking sensors, and various driver assistance systems. The interior design was typical of the W212 E-Class, characterized by a clean, elegant layout and high-quality materials. The dashboard featured analog gauges, a central display screen, and intuitive controls.
Chassis & Braking
The W212 E-Class featured an independent multi-link suspension at both the front and rear, providing a comfortable and controlled ride. The E 220 CDI, being a mid-range model, typically came with ventilated disc brakes at the front and solid disc brakes at the rear. Anti-lock braking system (ABS) was standard, enhancing safety and stability during braking. The steering was a rack-and-pinion system with electric power assistance, offering precise steering feel and reducing driver effort. The car’s weight distribution was well-balanced, contributing to its stable handling characteristics.
Market Reception & Comparison
The E 220 CDI BlueEFFICIENCY Edition was generally well-received by automotive critics, who praised its fuel efficiency, comfortable ride, and refined interior. However, some critics noted that the engine lacked the outright performance of its more powerful siblings. Compared to the E 250 CDI, the E 220 CDI offered a lower price point and better fuel economy, making it an attractive option for drivers prioritizing efficiency. Against competitors like the BMW 520d and Audi A6 2.0 TDI, the E 220 CDI offered a comparable level of luxury and refinement, with a slight edge in fuel economy.
Legacy
The OM651 engine family, including the OM651.924 found in the E 220 CDI, has proven to be remarkably durable and reliable. With proper maintenance, these engines can easily exceed 200,000 miles. On the used car market, the E 220 CDI BlueEFFICIENCY Edition remains a popular choice for buyers seeking a comfortable, fuel-efficient, and reliable executive sedan. However, potential buyers should be aware of the potential for diesel particulate filter (DPF) issues, particularly if the car has primarily been used for short trips. Overall, the E 220 CDI BlueEFFICIENCY Edition represents a well-engineered and practical option within the W212 E-Class range.
