The Mercedes-Benz E-Class T-modell (S212) E 300 CDI BlueEFFICIENCY, equipped with a 3.0-liter V6 diesel engine and the 7G-TRONIC automatic transmission, was produced from February to July 2010. This variant occupied a mid-range position within the S212 wagon lineup, offering a balance between performance, fuel efficiency, and practicality. It represented a key offering for buyers seeking a refined and capable estate car with the benefits of a modern diesel powertrain. The S212 generation, launched in 2009, aimed to blend luxury, technology, and driving dynamics in a practical wagon body style, and the E 300 CDI BlueEFFICIENCY played a significant role in achieving that goal.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class T-modell (S212) |
| Type | E 300 CDI BlueEFFICIENCY V6 (204 Hp) 7G-TRONIC |
| Start of production | February, 2010 |
| End of production | July, 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 8.9-9.4 l/100 km (26.4 – 25 US mpg) |
| Fuel consumption (extra urban) | 5.9-6.1 l/100 km (39.9 – 38.6 US mpg) |
| Fuel consumption (combined) | 7-7.3 l/100 km (33.6 – 32.2 US mpg) |
| CO2 emissions | 185-192 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.3 sec |
| Acceleration 0 – 60 mph | 7.9 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 @ 4000 rpm |
| Torque | 500 Nm @ 1400-2400 rpm (368.78 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 642.850 |
| Engine displacement | 2987 cm3 (182.28 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 15.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Kerb Weight | 1850 kg (4078.55 lbs.) |
| Max. weight | 2500 kg (5511.56 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 | 80 l (21.13 US gal | 17.6 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 | Rear wheel drive |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Air suspension, Transverse stabilizer |
| Front brakes | Ventilated discs, 322 mm |
| Rear brakes | Ventilated discs, 300 mm |
INTRODUCTION
The Mercedes-Benz S212 E 300 CDI BlueEFFICIENCY, produced between February and July 2010, represents a sophisticated iteration of the E-Class wagon. Built on the W212 platform, the S212 T-modell (estate) offered a compelling combination of luxury, practicality, and efficiency. This particular variant, powered by the OM642.850 3.0-liter V6 diesel engine and paired with the 7G-TRONIC seven-speed automatic transmission, was positioned as a strong contender in the premium wagon segment, appealing to buyers who prioritized comfort, space, and fuel economy. The “BlueEFFICIENCY” designation indicated the inclusion of various fuel-saving technologies, aligning with Mercedes-Benz’s commitment to reducing emissions and improving overall efficiency.
Powertrain & Engine Architecture
At the heart of the E 300 CDI BlueEFFICIENCY lies the OM642.850 3.0-liter V6 diesel engine. This engine is a robust and well-regarded unit, known for its durability and strong torque output. It features a common rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. The engine also incorporates a variable geometry turbocharger (VGT) and an intercooler to enhance performance and efficiency. The VGT adjusts the turbine vanes to optimize airflow across a wide range of engine speeds, resulting in improved throttle response and reduced turbo lag. The 7G-TRONIC automatic transmission, a seven-speed unit, provides smooth and efficient gear changes. It features a torque converter lock-up clutch that engages at higher speeds to reduce slippage and improve fuel economy. The transmission offers both manual and automatic shifting modes, allowing drivers to tailor the driving experience to their preferences.
Driving Characteristics
The E 300 CDI BlueEFFICIENCY delivers a refined and comfortable driving experience. The 500 Nm (368.78 lb.-ft.) of torque, available from 1400-2400 rpm, provides ample pulling power for effortless cruising and confident overtaking. While not a sports-oriented variant, the engine offers sufficient acceleration, achieving 0-100 km/h (0-62 mph) in 8.3 seconds. The 7G-TRONIC transmission contributes to smooth and seamless gear changes, enhancing overall driving comfort. Compared to the more powerful E 350 CDI or the gasoline-powered E 350, the E 300 CDI prioritizes fuel efficiency and relaxed cruising over outright performance. The automatic transmission’s gear ratios are optimized for fuel economy, resulting in lower engine speeds at highway speeds. The suspension setup, typically featuring coil springs and multi-link suspension, provides a comfortable ride, absorbing bumps and imperfections in the road surface effectively.
Equipment & Trim Levels
The E 300 CDI BlueEFFICIENCY T-modell came standard with a comprehensive array of features, reflecting its position as a premium vehicle. Standard equipment typically included automatic climate control, a high-quality audio system, power-adjustable front seats, and a leather-wrapped steering wheel. Safety features such as ABS, ESP, and multiple airbags were also standard. Optional extras included features such as a panoramic sunroof, navigation system, premium leather upholstery, and advanced driver-assistance systems like adaptive cruise control and lane-keeping assist. Interior trim levels varied, with options for wood or aluminum accents. The standard upholstery was typically a high-quality cloth, with leather upholstery available as an upgrade.
Chassis & Braking
The S212 E-Class wagon features a robust chassis designed to provide a comfortable and stable ride. The front suspension utilizes a multi-link independent setup with coil springs and a transverse stabilizer bar. The rear suspension also employs a multi-link independent design, often with optional air suspension for enhanced ride comfort and load leveling. The braking system consists of ventilated disc brakes on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) and ESP (Electronic Stability Program) are standard features, enhancing safety and control. The E 300 CDI, due to its weight, typically featured slightly larger brake components compared to lower-powered variants.
Market Reception & Comparison
The E 300 CDI BlueEFFICIENCY T-modell was generally well-received by automotive critics. It was praised for its comfortable ride, spacious interior, and fuel-efficient engine. Critics noted that while it wasn’t the sportiest wagon on the market, it offered a compelling blend of practicality and refinement. Compared to the E 350 CDI, the E 300 CDI offered similar levels of luxury and practicality but with slightly lower performance and fuel consumption. The E 300 CDI also represented a more affordable option, making it accessible to a wider range of buyers. Its fuel economy figures were competitive with other diesel wagons in its class, and its reliability was generally considered to be good.
Legacy
The OM642 engine family, including the OM642.850 found in the E 300 CDI, has a reputation for durability and longevity. With proper maintenance, these engines can reliably exceed 200,000 miles. The 7G-TRONIC transmission is also generally considered to be a reliable unit, although regular fluid changes are essential for maintaining its performance. In the used car market, the S212 E 300 CDI T-modell remains a popular choice for buyers seeking a practical and refined wagon. Its combination of space, comfort, and fuel efficiency continues to appeal to a wide range of drivers. 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.
