The Mercedes-Benz E-Class T-modell (S212) E 250 CDI BlueEFFICIENCY, produced from 2011 to January 2013, 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) lineup, it catered to buyers seeking a spacious and refined wagon with strong fuel economy and respectable performance. This variant utilized a 2.1-liter turbocharged diesel engine paired with the 7G-TRONIC PLUS automatic transmission, a combination designed to deliver a comfortable and efficient driving experience. It was a key model for Mercedes-Benz in Europe, where the demand for wagons remained strong, offering a premium alternative to SUVs.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class T-modell (S212) |
| Type | E 250 CDI BlueEFFICIENCY (204 Hp) 7G-TRONIC PLUS |
| Start of production | 2011 |
| End of production | January, 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.4-6.6 l/100 km (36.8 – 35.6 US mpg, 44.1 – 42.8 UK mpg, 15.6 – 15.2 km/l) |
| Fuel consumption (extra urban) | 4.6-4.8 l/100 km (51.1 – 49 US mpg, 61.4 – 58.9 UK mpg, 21.7 – 20.8 km/l) |
| Fuel consumption (combined) | 5.3-5.5 l/100 km (44.4 – 42.8 US mpg, 53.3 – 51.4 UK mpg, 18.9 – 18.2 km/l) |
| CO2 emissions | 139-143 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 | 232 km/h (144.16 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 |
| Power per litre | 95.2 Hp/l |
| 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 | 2445 kg (5390.3 lbs.) |
| Max load | 675 kg (1488.12 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%) | 2100 kg (4629.71 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 | 1515 mm (59.65 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1583 mm (62.32 in.) |
| Rear 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 | 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, Air 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 heart of the E 250 CDI BlueEFFICIENCY was the OM 651.924 2.1-liter inline-four diesel engine. This engine was a highly advanced design for its time, featuring common-rail direct injection and a sophisticated bi-turbocharger system. The two-stage turbocharging – a smaller turbo for quick response at low engine speeds and a larger turbo for increased power at higher speeds – minimized turbo lag and provided a broad, usable torque curve. The engine boasted a high compression ratio of 16.2:1, contributing to its efficiency. The 7G-TRONIC PLUS automatic transmission, a seven-speed unit, was known for its smooth and quick shifts. It featured a torque converter lock-up clutch that engaged in most gears, further improving fuel economy. The transmission offered selectable driving modes, allowing drivers to prioritize comfort or performance.
Driving Characteristics
The E 250 CDI T-modell offered a refined and comfortable driving experience. While not overtly sporty, the 204 horsepower and 368 lb-ft of torque provided ample power for everyday driving and even for carrying a full load of passengers and luggage. Acceleration from 0-60 mph took around 7.4 seconds, which was respectable for a wagon of this size. The 7G-TRONIC PLUS transmission was well-matched to the engine, providing smooth and seamless gear changes. Compared to the more powerful E 350 models, the E 250 CDI prioritized fuel efficiency and relaxed cruising. The gear ratios were tuned for optimal fuel economy, meaning it wasn’t as eager to rev as some of its siblings. However, the abundant low-end torque made it easy to maintain highway speeds and overtake slower vehicles without requiring aggressive downshifts.
Equipment & Trim Levels
The E 250 CDI BlueEFFICIENCY T-modell came standard with a generous array of features, including automatic climate control, power windows and locks, a multi-function steering wheel, and a high-quality audio system. Interior upholstery was typically a combination of fabric and leatherette, with full leather options available as an upgrade. Optional extras included a navigation system, a panoramic sunroof, heated seats, and advanced driver-assistance systems such as lane keeping assist and blind spot monitoring. The “BlueEFFICIENCY” designation indicated the inclusion of fuel-saving technologies like start-stop functionality and optimized aerodynamics.
Chassis & Braking
The S212 E-Class T-modell featured a sophisticated chassis design. Front suspension utilized an independent multi-link setup, while the rear suspension employed an independent multi-link system, often with optional air suspension for enhanced ride comfort. The E 250 CDI typically came equipped with ventilated disc brakes at the front and solid discs at the rear. Anti-lock braking system (ABS) and electronic stability control (ESP) were standard safety features. The suspension tuning was geared towards providing a comfortable ride, with a focus on absorbing bumps and minimizing body roll.
Market Reception & Comparison
The E 250 CDI BlueEFFICIENCY T-modell was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and spacious interior. Compared to the E 350 T-modell, the E 250 CDI offered significantly better fuel economy, making it a more practical choice for drivers who covered long distances. However, the E 350 provided more exhilarating performance. Against competitors like the Audi A6 Avant and BMW 5 Series Touring, the E 250 CDI held its own, offering a compelling combination of luxury, practicality, and efficiency. Reliability was generally good, although diesel particulate filter (DPF) issues could occasionally arise, particularly with vehicles primarily used for short trips.
Legacy
The OM 651 engine family, including the 2.1-liter variant used in the E 250 CDI, proved 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 for buyers seeking a practical and refined wagon. 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 combination of fuel efficiency, space, and Mercedes-Benz build quality continues to make this variant a desirable option for those seeking a premium estate car.
