The Mercedes-Benz E 200 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 prioritizing economy and refinement over outright performance. This model combined a 2.1-liter turbocharged diesel engine with the 7G-TRONIC PLUS seven-speed automatic transmission, offering a balance between usability and Mercedes-Benz’s renowned luxury. It primarily served the European market, where diesel engines held significant popularity due to favorable taxation and fuel efficiency.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W212) |
| Type | E 200 CDI BlueEFFICIENCY (136 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) | 6.3-6.5 l/100 km (37.3 – 36.2 US mpg, 44.8 – 43.5 UK mpg, 15.9 – 15.4 km/l) |
| Fuel consumption (extra urban) | 4.4-4.7 l/100 km (53.5 – 50 US mpg, 64.2 – 60.1 UK mpg, 22.7 – 21.3 km/l) |
| Fuel consumption (combined) | 5.1-5.4 l/100 km (46.1 – 43.6 US mpg, 55.4 – 52.3 UK mpg, 19.6 – 18.5 km/l) |
| CO2 emissions | 134-141 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9.5 sec |
| Acceleration 0 – 62 mph | 9.5 sec |
| Acceleration 0 – 60 mph | 9 sec |
| Maximum speed | 207 km/h (128.62 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 12.2 kg/Hp, 81.9 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 216.9 Nm/tonne |
| Power | 136 Hp @ 2800-4600 rpm |
| Power per litre | 63.5 Hp/l |
| Torque | 360 Nm @ 1600-2600 rpm (265.52 lb.-ft. @ 1600-2600 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 651.925 |
| 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 | Turbocharger, 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%) | 1900 kg (4188.78 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 (Back) 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 (turning diameter) | 11.25 m (36.91 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | 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 |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 205/60 R16; 225/55 R16; 245/45 R17 |
| Wheel rims size | 7J x 16; 7.5J x 16; 8J x 17 |
INTRODUCTION
The Mercedes-Benz E 200 CDI BlueEFFICIENCY, part of the W212 E-Class series produced from 2009 to 2016, represented a significant step towards fuel efficiency within the luxury sedan segment. Introduced in 2011, this variant aimed to broaden the E-Class’s appeal by offering a diesel-powered option with lower running costs. Built on the 1HX0/A3 platform, the W212 E-Class was known for its sophisticated engineering, comfortable ride, and advanced safety features. The E 200 CDI BlueEFFICIENCY specifically targeted customers who desired the prestige of a Mercedes-Benz E-Class but were mindful of fuel consumption and emissions.
Powertrain & Engine Architecture
At the heart of the E 200 CDI BlueEFFICIENCY lies the OM651.925 2.1-liter inline-four cylinder diesel engine. This engine is a highly refined unit, featuring common-rail direct injection and a variable geometry turbocharger with an intercooler. The common-rail system, operating at extremely high pressures, ensures precise fuel delivery and optimized combustion. The engine utilizes a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, enhancing volumetric efficiency and contributing to its power output. The 7G-TRONIC PLUS seven-speed automatic transmission is a key component, offering smooth and efficient gear changes. This transmission features a torque converter lock-up clutch that minimizes slippage and improves fuel economy. The transmission’s gear ratios are tuned for both relaxed cruising and responsive acceleration. The ‘BlueEFFICIENCY’ designation indicates the inclusion of various fuel-saving technologies, including an engine start-stop system and optimized aerodynamics.
Driving Characteristics
The E 200 CDI BlueEFFICIENCY delivers a comfortable and refined driving experience. While not a performance-oriented model, the 136 horsepower and 360 Nm (265 lb-ft) of torque provide adequate power for everyday driving and highway cruising. Acceleration from 0 to 100 km/h (0-62 mph) takes approximately 9.5 seconds. The 7G-TRONIC PLUS transmission contributes to smooth gear changes, minimizing disruptions during acceleration. Compared to the more powerful E 250 CDI or E 350 models, the E 200 CDI offers a more relaxed pace. The gear ratios are optimized for fuel efficiency, meaning the engine doesn’t rev as high during normal driving conditions. This results in a quieter cabin and lower fuel consumption. However, drivers seeking more spirited performance might find the E 200 CDI somewhat lacking in outright acceleration.
Equipment & Trim Levels
The E 200 CDI BlueEFFICIENCY typically came equipped with a generous array of standard features. These included automatic climate control, a multi-function steering wheel, power-adjustable front seats, and a high-quality audio system. Safety features were also comprehensive, encompassing ABS, ESP, and multiple airbags. Interior upholstery was typically a combination of fabric and Artico leather. Optional extras included a sunroof, navigation system, leather upholstery, and advanced driver-assistance systems such as lane keeping assist and blind spot monitoring. Trim levels varied depending on the market, but generally, the E 200 CDI BlueEFFICIENCY served as a well-equipped base model, with options available to enhance luxury and convenience.
Chassis & Braking
The W212 E-Class featured a sophisticated chassis design, incorporating an independent multi-link suspension at both the front and rear. This suspension setup provides a comfortable ride and good handling characteristics. The E 200 CDI BlueEFFICIENCY utilized ventilated disc brakes at the front and solid disc brakes at the rear. ABS (Anti-lock Braking System) and ESP (Electronic Stability Program) were standard, enhancing safety and control. The steering system employed a hydraulic power steering rack and pinion, providing precise and responsive steering feel. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The E 200 CDI BlueEFFICIENCY was generally well-received by automotive critics, particularly for its fuel efficiency and comfortable ride. It was praised for offering a compelling combination of luxury and economy. Compared to the higher-output diesel variants, such as the E 250 CDI, the E 200 CDI offered lower running costs but at the expense of some performance. Fuel economy figures of around 5.1-5.4 l/100 km (46.1-43.6 US mpg) were highly competitive for its class. Reliability was generally good, although, like all modern diesel engines, it was susceptible to issues with the diesel particulate filter (DPF) if not driven on longer journeys regularly.
Legacy
The Mercedes-Benz E 200 CDI BlueEFFICIENCY (W212) remains a popular choice in the used car market, particularly for buyers seeking a comfortable and fuel-efficient luxury sedan. The OM651 engine is known for its durability, although regular maintenance is crucial to ensure long-term reliability. Common issues include DPF clogging and potential problems with the fuel injectors. However, with proper care, these engines can reliably exceed 200,000 kilometers (125,000 miles). The W212 E-Class, in general, has established a reputation for build quality and refinement, making the E 200 CDI BlueEFFICIENCY a sensible and appealing option for those seeking a well-engineered and economical luxury car.




