The Mercedes-Benz E 220 CDI BlueEFFICIENCY, produced between February 2011 and January 2013, was a key variant within the W212 E-Class range. Positioned as a fuel-efficient and refined option, it catered to buyers seeking a balance between performance and economy in the mid-size executive car segment. This model incorporated Mercedes-Benz’s BlueEFFICIENCY technologies, including a Start & Stop system, to minimize fuel consumption and emissions. It served as a popular choice in European markets, where diesel engines held a significant share of the executive car market, and found a smaller but dedicated following elsewhere.
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class (W212) |
| Type | E 220 CDI BlueEFFICIENCY (170 Hp) Start & Stop |
| Start of Production | February 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) | 4.2-4.6 l/100 km (56 – 51.1 US mpg, 67.3 – 61.4 UK mpg, 23.8 – 21.7 km/l) |
| Fuel Consumption (Combined) | 5-5.3 l/100 km (47 – 44.4 US mpg, 56.5 – 53.3 UK mpg, 20 – 18.9 km/l) |
| CO2 Emissions | 130-139 g/km |
| Fuel Type | Diesel |
| Acceleration 0-100 km/h | 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 |
| Weight-to-Torque Ratio | 4.2 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 651.924 |
| 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) |
| Coolant Capacity | 9 l (9.51 US qt | 7.92 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 (Brakes 12%) | 1900 kg (4188.78 lbs.) |
| Permitted Trailer Load (No Brakes) | 750 kg (1653.47 lbs.) |
| Permitted Towbar Download | 84 kg (185.19 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 | Rear Wheel Drive |
| Number of Gears | 6 |
| Gearbox Type | Manual Transmission |
| Front Suspension | Coil Spring, Independent Multi-Link, Transverse Stabilizer, Optional Air Suspension |
| Rear Suspension | Independent Multi-Link, Stabilizer, Optional Air Suspension |
| Front Brakes | Ventilated Discs, 295 mm |
| Rear Brakes | Discs, 300 mm |
Powertrain & Engine Architecture
The E 220 CDI BlueEFFICIENCY was powered by the OM651.924 2.1-liter inline-four diesel engine. This engine was a cornerstone of Mercedes-Benz’s diesel offerings during this period, known for its robust construction and efficiency. The OM651 featured a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A key feature was its bi-turbocharger setup, employing a small turbocharger for quick response at low engine speeds and a larger turbocharger for increased power at higher RPMs. This configuration helped to mitigate turbo lag and provide a broad torque curve. The engine also incorporated an intercooler to further enhance performance by cooling the intake air. The 16.2:1 compression ratio was typical for a diesel engine, contributing to its thermal efficiency. The engine produced 170 horsepower at 3000-4200 rpm and a substantial 400 Nm (295 lb-ft) of torque between 1400-2800 rpm. The standard transmission was a 6-speed manual gearbox, designed to efficiently transfer power to the rear wheels.
Driving Characteristics
The E 220 CDI BlueEFFICIENCY with the manual transmission offered a comfortable and refined driving experience. While not overtly sporty, the engine’s ample torque provided brisk acceleration, with 0-60 mph arriving in approximately 8.3 seconds. The bi-turbo setup minimized turbo lag, resulting in a responsive feel in everyday driving situations. The 6-speed manual gearbox was well-matched to the engine’s characteristics, offering smooth shifts and allowing the driver to maintain optimal engine speed. Compared to the more powerful E 250 CDI or E 350 models, the E 220 CDI prioritized fuel economy over outright performance. The manual transmission provided more driver engagement than the optional 5-speed automatic, but the automatic was favored by many for its convenience in city driving. 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 E 220 CDI BlueEFFICIENCY typically came well-equipped, reflecting its position within the E-Class range. Standard features included automatic climate control, a multi-function steering wheel, power windows and mirrors, and a basic audio system. Upholstery was generally cloth, although leather options were available. The dashboard layout was typical of the W212 E-Class, characterized by a clean and functional design. Optional extras included a premium audio system, navigation system, sunroof, leather upholstery, and parking sensors. The BlueEFFICIENCY package included the Start & Stop system, which automatically shut off the engine when the vehicle was stationary to reduce fuel consumption and emissions. Various trim packages were offered, allowing buyers to customize the interior and exterior appearance of their vehicle.
Chassis & Braking
The W212 E-Class featured a robust chassis designed for comfort and safety. The E 220 CDI utilized a coil spring, independent multi-link suspension at both the front and rear, providing a smooth and controlled ride. A transverse stabilizer bar helped to reduce body roll during cornering. Optional air suspension was available, offering adjustable ride height and further enhancing ride comfort. The braking system consisted of ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) was standard, along with electronic brakeforce distribution (EBD). The hydraulic power steering provided 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 interior. However, some reviewers noted that the engine lacked the outright performance of its larger counterparts. Compared to the E 250 CDI, the E 220 CDI offered slightly lower fuel economy but at a lower purchase price. The E 220 CDI’s main competitors included the BMW 520d and Audi A6 2.0 TDI, both of which offered similar levels of performance and efficiency. The Mercedes-Benz typically held an edge in terms of interior luxury and ride comfort.
Legacy
The OM651 engine, as used in the E 220 CDI BlueEFFICIENCY, has proven to be a durable and reliable powerplant. With proper maintenance, these engines can accumulate high mileage without major issues. On the used car market, the E 220 CDI BlueEFFICIENCY remains a popular choice for buyers seeking a comfortable, fuel-efficient, and well-equipped executive car. 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 E 220 CDI BlueEFFICIENCY represents a well-rounded and practical option within the W212 E-Class range, offering a compelling blend of performance, efficiency, and luxury.
