The Mercedes-Benz E-Class T-modell (S212) E 250 CDI BlueEFFICIENCY 4MATIC, produced from February to August 2011, represents a compelling blend of practicality, efficiency, and luxury within the E-Class range. This variant, equipped with a 2.1-liter turbocharged diesel engine producing 204 horsepower and paired with a 7G-TRONIC automatic transmission and all-wheel drive, occupied a significant middle ground in the S212 lineup, appealing to buyers seeking a balance between performance and fuel economy in a spacious, versatile wagon body style. It was part of the fifth generation of the E-Class estate, known for its refined driving experience and advanced technology.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class T-modell (S212) |
| Type | E 250 CDI BlueEFFICIENCY (204 Hp) 4MATIC 7G-TRONIC |
| Start of production | February, 2011 |
| End of production | August, 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 8.4-8.5 l/100 km (28 – 27.7 US mpg) |
| Fuel consumption (extra urban) | 5.6-5.7 l/100 km (42 – 41.3 US mpg) |
| Fuel consumption (combined) | 6.6-6.8 l/100 km (35.6 – 34.6 US mpg) |
| CO2 emissions | 174-177 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.1 sec |
| Acceleration 0 – 62 mph | 8.1 sec |
| Acceleration 0 – 60 mph | 7.7 sec |
| Maximum speed | 230 km/h (142.92 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.1 kg/Hp |
| Weight-to-torque ratio | 3.7 kg/Nm |
| 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) |
| Coolant capacity | 8.6 l (9.09 US qt | 7.57 UK qt) |
| Kerb Weight | 1855 kg (4089.57 lbs.) |
| Max. weight | 2505 kg (5522.58 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%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 84 kg (185.19 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 track | 1604 mm (63.15 in.) |
| Front overhang | 841 mm (33.11 in.) |
| Rear overhang | 1180 mm (46.46 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle | 11.25 m (36.91 ft.) |
| Drivetrain Architecture | All wheel drive (4×4) |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer, Air Suspension – Optional |
| Rear suspension | Independent multi-link suspension, Air suspension, Transverse stabilizer |
| Front brakes | Ventilated discs, 322 mm |
| Rear brakes | Disc, 300 mm |
Powertrain & Engine Architecture
The heart of the E 250 CDI BlueEFFICIENCY is the OM 651.924, a 2.1-liter inline-four cylinder diesel engine. This engine is a highly refined unit, featuring common-rail direct injection and a sophisticated two-stage turbocharging system. The first turbocharger is a variable geometry turbo (VGT) providing boost at lower engine speeds, while the second, smaller turbocharger kicks in at higher RPMs to maintain power output. This bi-turbo setup effectively eliminates turbo lag and delivers a broad, flat torque curve. The engine also incorporates an intercooler to further enhance performance. The 7G-TRONIC automatic transmission, a seven-speed unit, is known for its smooth and responsive shifts. It features a torque converter lock-up clutch that engages in most gears, improving fuel efficiency. The 4MATIC all-wheel-drive system provides enhanced traction and stability, particularly in adverse weather conditions.
Driving Characteristics
The E 250 CDI 4MATIC offers a comfortable and refined driving experience. While not overtly sporty, the 204 horsepower and 368 lb-ft of torque provide ample power for everyday driving and highway cruising. Acceleration from 0 to 60 mph takes around 7.7 seconds. The 7G-TRONIC transmission is well-matched to the engine, providing smooth and timely gear changes. Compared to the more powerful E 350 models, the E 250 CDI offers a more relaxed and fuel-efficient driving experience. The automatic transmission, while convenient, doesn’t offer the same level of driver engagement as a manual gearbox. However, it contributes to the car’s overall ease of use and comfort.
Equipment & Trim Levels
The E 250 CDI BlueEFFICIENCY 4MATIC typically came well-equipped as standard. Features included automatic climate control, power-adjustable front seats, a multi-function steering wheel, and a high-quality audio system. The interior typically featured cloth upholstery, although leather was available as an option. Optional extras included a sunroof, navigation system, premium sound system, and advanced driver-assistance systems such as lane keeping assist and blind spot monitoring. The “BlueEFFICIENCY” designation indicated the inclusion of fuel-saving technologies such as start-stop functionality and optimized aerodynamics.
Chassis & Braking
The S212 E-Class wagon features a sophisticated suspension system designed to provide a comfortable ride and precise handling. The front suspension utilizes coil springs and an independent multi-link setup, while the rear suspension employs an independent multi-link design as well. Air suspension was available as an option, further enhancing ride comfort. The braking system consists of ventilated discs at the front and solid discs at the rear. Anti-lock brakes (ABS) and electronic stability control (ESC) are standard features, providing enhanced safety and control.
Market Reception & Comparison
The E 250 CDI BlueEFFICIENCY 4MATIC was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and spacious interior. Compared to other trims in the E-Class lineup, the E 250 CDI offered a compelling value proposition for buyers prioritizing economy and practicality. While the more powerful E 350 models offered more exhilarating performance, the E 250 CDI provided a more sensible and affordable option. Its fuel economy figures were notably better than those of the gasoline-powered E 350, making it an attractive choice for drivers covering long distances.
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. In the used car market, the E 250 CDI 4MATIC remains a popular choice, offering a good balance of practicality, comfort, and fuel efficiency. 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 trips. Regular maintenance and the use of high-quality diesel fuel are essential for ensuring the long-term reliability of this powertrain.
