The Mercedes-Benz E 200 CDI BlueEFFICIENCY, produced between July 2009 and February 2011, was a key variant within the W212 E-Class range. Positioned as an entry-level diesel offering, it aimed to provide the renowned E-Class comfort and refinement with improved fuel economy. This model was primarily targeted at European markets where diesel engines held significant popularity due to favorable taxation and fuel costs. It represented a balance between performance and efficiency, appealing to drivers seeking a sophisticated and economical executive sedan. The W212 generation, launched in 2009, represented a significant evolution in design and technology for the E-Class, moving away from the more conservative styling of its predecessor.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W212) |
| Type (Engine) | E 200 CDI BlueEFFICIENCY (136 Hp) |
| Start of production | July, 2009 |
| End of production | February, 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6.6-6.8 l/100 km (35.6 – 34.6 US mpg, 42.8 – 41.5 UK mpg, 15.2 – 14.7 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) | 5.2-5.5 l/100 km (45.2 – 42.8 US mpg, 54.3 – 51.4 UK mpg, 19.2 – 18.2 km/l) |
| CO2 emissions | 137-145 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.2 sec |
| Acceleration 0 – 62 mph | 10.2 sec |
| Acceleration 0 – 60 mph | 9.7 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 12.1 kg/Hp, 82.7 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 218.8 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) |
| Coolant | 9 l (9.51 US qt | 7.92 UK qt) |
| Kerb Weight | 1645 kg (3626.6 lbs.) |
| Max. weight | 2255 kg (4971.42 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.) |
| 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 | 1464 mm (57.64 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1600 mm (62.99 in.) |
| Rear (Back) track | 1619 mm (63.74 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 | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer, Air Suspension – Optional |
| Rear suspension | Independent multi-link spring suspension with stabilizer, Air Suspension – Optional |
| Front brakes | Ventilated discs, 295 mm |
| Rear brakes | Disc, 300 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size (Front/Rear) | 205/60 R16; 225/55 R16; 245/45 R17; 245/40 R18 / 205/60 R16; 225/55 R16; 245/45 R17; 265/50 R18 |
| Wheel rims size (Front/Rear) | 7J x 16; 7.5J x 16; 8J x 17; 8.5J x 18 / 7J x 16; 7.5J x 16; 8J x 17; 9J x 18 |
Powertrain & Engine Architecture
The E 200 CDI BlueEFFICIENCY was powered by the OM651.925, a 2.1-liter inline-four cylinder 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 turbocharger with an intercooler further enhanced performance and efficiency. The engine produced 136 horsepower at 2800-4600 rpm and 360 Nm (265.52 lb-ft) of torque between 1600-2600 rpm. The engine utilized a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to its efficient operation. The 6-speed manual transmission was standard, providing a balance between fuel economy and driver control.
Driving Characteristics
The E 200 CDI BlueEFFICIENCY offered a comfortable and refined driving experience, typical of the E-Class. While not a performance-oriented variant, the 136 hp engine and 360 Nm of torque provided adequate power for everyday driving and highway cruising. Acceleration from 0 to 100 km/h (0-62 mph) took approximately 10.2 seconds. The manual transmission allowed for precise gear selection, but the relatively long gearing prioritized fuel economy over outright acceleration. Compared to the more powerful E 250 CDI or E 350 models, the E 200 CDI felt less responsive, particularly during overtaking maneuvers. However, its fuel efficiency was a significant advantage, making it an attractive option for drivers covering long distances.
Equipment & Trim Levels
The E 200 CDI BlueEFFICIENCY typically came equipped with a respectable level of standard features. These included automatic climate control, a multi-function steering wheel, power windows, and an audio system. Interior upholstery was generally cloth, with leather options available as an upgrade. Standard safety features included ABS, ESP, and multiple airbags. Optional extras included a sunroof, navigation system, premium sound system, and parking sensors. The “BlueEFFICIENCY” designation indicated the inclusion of fuel-saving technologies such as start-stop functionality and optimized aerodynamics.
Chassis & Braking
The W212 E-Class featured a sophisticated chassis design. The E 200 CDI utilized a coil spring, independent multi-link suspension at the front and an independent multi-link spring suspension at the rear. This setup provided a comfortable ride and good handling characteristics. Stabilizer bars were fitted front and rear to reduce body roll. Braking duties were handled by ventilated discs at the front and solid discs at the rear. ABS (Anti-lock Braking System) was standard, enhancing braking performance and stability. The suspension was tuned to prioritize comfort, but optional air suspension was available for a more luxurious ride.
Market Reception & Comparison
The E 200 CDI BlueEFFICIENCY was well-received in European markets as a practical and economical executive sedan. Critics praised its fuel efficiency and comfortable ride, but some noted its lack of outright performance compared to higher-powered variants. Compared to the E 250 CDI, the E 200 CDI offered lower running costs but sacrificed some performance. The E 200 CDI’s fuel economy figures of 5.2-5.5 l/100 km (45.2 – 42.8 US mpg) were a key selling point, making it an attractive option for fleet buyers and private drivers alike. Reliability was generally good, typical of Mercedes-Benz vehicles, although diesel particulate filter (DPF) issues could occur with infrequent long-distance driving.
Legacy
The OM651 engine, as used in the E 200 CDI BlueEFFICIENCY, has proven to be a durable and reliable powerplant. While older examples may require maintenance on components like the turbocharger and fuel injectors, the engine itself is generally robust. In the used car market, the E 200 CDI BlueEFFICIENCY remains a popular choice for those seeking a comfortable, economical, and well-built executive sedan. Its relatively low running costs and proven reliability make it a sensible option for drivers prioritizing practicality and value. However, potential buyers should be aware of the potential for DPF issues and ensure the vehicle has been properly maintained.
