The Mercedes-Benz E-Class T-modell (S212) E 250 CDI BlueEFFICIENCY, produced from 2009 to 2011, represented a compelling blend of practicality, efficiency, and luxury within the E-Class range. Positioned as a mid-range offering in the T-modell (estate) body style, it catered to buyers seeking a spacious and versatile vehicle without sacrificing the refinement associated with the Mercedes-Benz brand. This variant was part of the S212 series, the third generation of E-Class estates, and aimed to provide a more economical alternative to the higher-performance E 350 and E 500 models while offering more space and utility than the E-Class sedan.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class T-modell (S212) |
| Type (Engine) | E 250 CDI BlueEFFICIENCY (204 Hp) |
| Start of production | 2009 year |
| End of production | 2011 year |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban (NEDC) | 7.4-7.5 l/100 km (31.8 – 31.4 US mpg, 38.2 – 37.7 UK mpg, 13.5 – 13.3 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 4.7-4.9 l/100 km (50 – 48 US mpg, 60.1 – 57.6 UK mpg, 21.3 – 20.4 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 5.7-5.8 l/100 km (41.3 – 40.6 US mpg, 49.6 – 48.7 UK mpg, 17.5 – 17.2 km/l) |
| CO2 emissions (NEDC) | 150-153 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.8 sec |
| Acceleration 0 – 62 mph | 7.8 sec |
| Acceleration 0 – 60 mph | 7.4 sec |
| Maximum speed | 233 km/h (144.78 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 8.7 kg/Hp, 115.3 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 282.5 Nm/tonne |
| Power | 204 Hp @ 4200 rpm |
| Torque | 500 Nm @ 1600-1800 rpm (368.78 lb.-ft. @ 1600-1800 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 | 1770 kg (3902.18 lbs.) |
| Max. weight | 2420 kg (5335.19 lbs.) |
| Max load | 650 kg (1433 lbs.) |
| Trunk (boot) space – minimum | 695 l (24.54 cu. ft.) |
| Trunk (boot) space – maximum | 1950 l (68.86 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 | 4895 mm (192.72 in.) |
| Width | 1854 mm (72.99 in.) |
| Width including mirrors | 2071 mm (81.54 in.) |
| Height | 1512 mm (59.53 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1585 mm (62.4 in.) |
| Rear (Back) track | 1604 mm (63.15 in.) |
| Front overhang | 841 mm (33.11 in.) |
| Rear overhang | 1180 mm (46.46 in.) |
| Drag coefficient (Cd) | 0.29 |
| 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 | 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 | Hydraulic Steering |
| Tires size | 225/55 R16; 245/45 R17 |
| Wheel rims size | 7.5J x 16; 8J x 17 |
Powertrain & Engine Architecture
The E 250 CDI BlueEFFICIENCY was powered by the OM 651.924, 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 fuel efficiency. The ‘BlueEFFICIENCY’ designation indicated the inclusion of various technologies aimed at reducing emissions and improving fuel economy, including a diesel particulate filter and optimized engine management. The engine utilized a common rail direct injection system, delivering fuel at extremely high pressure for improved combustion. A bi-turbocharger setup, employing both a small and a large turbocharger, provided a broad torque curve and minimized turbo lag. The valvetrain employed a double overhead camshaft (DOHC) design with four valves per cylinder. The engine produced 204 horsepower at 4200 rpm and a substantial 368 lb-ft of torque between 1600 and 1800 rpm. The engine was longitudinally mounted in the front of the vehicle, driving the rear wheels.
Driving Characteristics
The E 250 CDI T-modell offered a comfortable and refined driving experience. While not overtly sporty, the engine’s ample torque provided brisk acceleration, with a 0-60 mph time of around 7.4 seconds. The six-speed manual transmission, standard on this variant, allowed for precise control, although an optional five-speed automatic transmission was also available. The automatic, while offering convenience, did slightly diminish acceleration performance. The gear ratios were tuned for fuel efficiency, with taller gearing in higher gears for relaxed highway cruising. Compared to the more powerful E 350, the E 250 CDI offered a more relaxed and economical driving experience, prioritizing fuel efficiency and low-end torque over outright speed. The suspension provided a comfortable ride, absorbing bumps and imperfections in the road effectively.
Equipment & Trim Levels
The E 250 CDI BlueEFFICIENCY T-modell came standard with a comprehensive list of features, including automatic climate control, power windows and mirrors, a multi-function steering wheel, and an audio system with CD player. Upholstery typically consisted of fabric or Artico leatherette. Optional extras included leather upholstery, a sunroof, navigation system, parking sensors, and upgraded audio systems. Trim levels were relatively simple, with most options being added individually rather than bundled into distinct packages. The focus was on providing a well-equipped base vehicle that could be customized to the buyer’s preferences.
Chassis & Braking
The S212 E-Class T-modell featured an independent multi-link suspension at both the front and rear, providing a comfortable ride and good handling characteristics. The front brakes were ventilated discs, while the rear brakes were solid discs. Anti-lock braking system (ABS) was standard. The steering was a hydraulic power-assisted rack and pinion system, offering 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 250 CDI BlueEFFICIENCY T-modell was well-received by critics for its fuel efficiency, spaciousness, and refinement. It offered a compelling alternative to more expensive and less economical estate cars. Compared to the E 350 T-modell, the E 250 CDI offered significantly better fuel economy, although it lacked the higher-performance engine’s outright speed. The E 250 CDI also proved to be more reliable than some of the more complex and technologically advanced variants in the E-Class range. Its combination of practicality, efficiency, and luxury made it a popular choice for families and individuals seeking a versatile and refined estate car.
Legacy
The OM 651 engine family, including the 2.1-liter variant found in the E 250 CDI, has proven to be remarkably durable and reliable. These engines are known for their longevity and relatively low maintenance costs. On the used car market, the E 250 CDI T-modell remains a popular choice, offering a good balance of value, practicality, and refinement. While older examples may require some maintenance, the robust engine and well-built chassis ensure that these vehicles can provide many years of reliable service. The S212 E-Class T-modell, and particularly the E 250 CDI variant, cemented Mercedes-Benz’s reputation for building high-quality, long-lasting estate cars.
