The Mercedes-Benz E 220 CDI BlueEFFICIENCY, produced between 2011 and January 2013, was a key variant within the W212 E-Class range. Positioned as a fuel-efficient and comfortable option, it catered to buyers seeking a balance between performance and economy in the mid-size executive car segment. This model represented Mercedes-Benz’s commitment to diesel technology, offering a refined driving experience with reduced emissions. It was primarily marketed in Europe and other regions where diesel engines held significant market share, offering a compelling alternative to gasoline-powered E-Class models.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W212) |
| Type | E 220 CDI BlueEFFICIENCY (170 Hp) 7G-TRONIC PLUS |
| Start of production | 2011 |
| End of production | January, 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6.2-6.6 l/100 km (37.9 – 35.6 US mpg, 45.6 – 42.8 UK mpg, 16.1 – 15.2 km/l) |
| Fuel consumption (extra urban) | 4.2-4.5 l/100 km (56 – 52.3 US mpg, 67.3 – 62.8 UK mpg, 23.8 – 22.2 km/l) |
| Fuel consumption (combined) | 4.9-5.3 l/100 km (48 – 44.4 US mpg, 57.6 – 53.3 UK mpg, 20.4 – 18.9 km/l) |
| CO2 emissions | 129-138 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 |
| Maximum speed | 227 km/h (141.05 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 | 2270 kg (5004.49 lbs.) |
| Max load | 610 kg (1344.82 lbs.) |
| Trunk (boot) space – minimum | 540 l (19.07 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%) | 2000 kg (4409.25 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| 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.) |
| Drag coefficient (Cd) | 0.25 |
| Minimum turning circle | 11.25 m (36.91 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission G-TRONIC PLUS |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
INTRODUCTION
The Mercedes-Benz E 220 CDI BlueEFFICIENCY, launched in 2011 as part of the W212 E-Class facelift, represented a significant refinement of the diesel powertrain within the range. Built on the 1HX0/A3 platform, it aimed to deliver improved fuel economy and reduced emissions without sacrificing the comfort and luxury expected of a Mercedes-Benz. This variant occupied a middle ground in the E-Class lineup, offering a more affordable entry point than the higher-powered E 350 models while still providing a premium driving experience. The “BlueEFFICIENCY” designation signified the inclusion of various fuel-saving technologies, aligning with Mercedes-Benz’s environmental initiatives.
Powertrain & Engine Architecture
At the heart of the E 220 CDI BlueEFFICIENCY lies the OM 651.924 2.1-liter inline-four cylinder diesel engine. This engine is a highly advanced design featuring common-rail direct injection and a sophisticated bi-turbocharger system. The twin turbochargers, a smaller and a larger unit, work in sequence to provide both rapid response at low engine speeds and sustained power at higher RPMs. The engine boasts a high compression ratio of 16.2:1, contributing to its thermal efficiency. The 7G-TRONIC PLUS seven-speed automatic transmission, a hallmark of Mercedes-Benz engineering, is paired with this engine. This transmission is known for its smooth and precise shifts, contributing to both fuel efficiency and driving comfort. The transmission features a torque converter lock-up clutch that engages at various speeds to minimize slippage and improve efficiency.
Driving Characteristics
The E 220 CDI BlueEFFICIENCY 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 highway cruising. Acceleration from 0 to 100 km/h (0-62 mph) took approximately 8.4 seconds, which was respectable for a diesel-powered executive car. The 7G-TRONIC PLUS transmission was well-matched to the engine’s characteristics, providing smooth and timely gear changes. Compared to the more powerful E 350 models, the E 220 CDI offered a more relaxed driving style, prioritizing fuel economy and comfort over outright performance. The gear ratios were optimized for efficiency, with higher gears engaging quickly to reduce engine RPM at cruising speeds. Compared to manual transmission versions of the same engine, the automatic offered greater convenience and ease of use, particularly in urban traffic.
Equipment & Trim Levels
The E 220 CDI BlueEFFICIENCY came standard with a comprehensive array of features, reflecting its position as a premium vehicle. Standard equipment typically included automatic climate control, a high-quality audio system, power-adjustable front seats, and leather upholstery. Safety features were also abundant, including ABS, ESP, and multiple airbags. Optional extras included a navigation system, a panoramic sunroof, and advanced driver-assistance systems such as adaptive cruise control and lane-keeping assist. Interior trim levels varied, with options for different wood veneers and aluminum accents. The dashboard layout was typical of the W212 E-Class, featuring a classic and elegant design.
Chassis & Braking
The E 220 CDI BlueEFFICIENCY utilized an independent multi-link suspension system at both the front and rear, providing a comfortable and controlled ride. The suspension was tuned to prioritize comfort, absorbing bumps and imperfections in the road surface effectively. The braking system consisted of ventilated discs at the front and solid discs at the rear, providing ample stopping power. ABS (Anti-lock Braking System) and ESP (Electronic Stability Program) were standard features, enhancing safety and stability. The steering system was a hydraulic power-assisted rack and pinion setup, offering precise and responsive steering feel.
Market Reception & Comparison
The E 220 CDI BlueEFFICIENCY was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined powertrain. However, some critics noted that the engine lacked the outright performance of its gasoline-powered counterparts. Compared to other trims in the E-Class lineup, such as the E 350, the E 220 CDI offered a more affordable entry point with lower running costs. Its fuel economy was significantly better than that of the E 350, making it an attractive option for drivers who prioritized efficiency. Reliability was generally good, with the OM 651 engine proving to be a durable and long-lasting unit.
Legacy
The Mercedes-Benz E 220 CDI BlueEFFICIENCY has proven to be a reliable and durable vehicle in the used car market. The OM 651 engine is known for its longevity, and with proper maintenance, it can provide many years of trouble-free service. The 7G-TRONIC PLUS transmission is also generally reliable, although regular fluid changes are essential. Today, these vehicles represent a good value proposition for buyers seeking a comfortable, fuel-efficient, and well-equipped executive car. While newer models offer more advanced technology and features, the W212 E 220 CDI BlueEFFICIENCY remains a popular choice for those who appreciate its classic Mercedes-Benz qualities.
