2010-2013 Mercedes-Benz E-class T-modell (S212) E 350 CDI BlueEFFICIENCY V6 (265 Hp) 7G-TRONIC PLUS

The Mercedes-Benz E-Class T-modell (S212) E 350 CDI BlueEFFICIENCY, produced from July 2010 to January 2013, represents a compelling blend of practicality, performance, and efficiency within the E-Class range. This variant, a diesel-powered station wagon (estate), occupied a mid-to-upper position in the S212 lineup, offering a significant step up in power and refinement compared to the entry-level models while remaining more accessible than the high-performance AMG versions. It was primarily marketed towards buyers seeking a luxurious and capable family vehicle with long-distance cruising comfort and respectable fuel economy. The “BlueEFFICIENCY” designation highlights Mercedes-Benz’s efforts to improve fuel consumption and reduce emissions through various technological enhancements.

Technical Specifications

Powertrain & Engine Architecture

The heart of the E 350 CDI BlueEFFICIENCY is the OM 642.852 3.0-liter V6 diesel engine. This engine is a sophisticated design featuring a common rail direct injection system, a variable geometry turbocharger, and an intercooler. The common rail system, operating at extremely high pressures, allows for precise fuel metering and optimized combustion. The V6 configuration provides inherent smoothness and balance, contributing to a refined driving experience. The engine produces 265 horsepower at 3800 rpm and a substantial 620 Nm (457 lb-ft) of torque between 1600 and 2400 rpm. This broad torque curve is a hallmark of modern diesel engines, providing strong acceleration in virtually any gear. The engine is longitudinally mounted in the front of the vehicle, driving the rear wheels. Paired with the engine is the 7G-TRONIC PLUS seven-speed automatic transmission. This transmission is known for its smooth and quick shifts, contributing to both performance and fuel efficiency. It features a torque converter lock-up clutch that engages at higher speeds to reduce slippage and improve fuel economy.

Driving Characteristics

The E 350 CDI BlueEFFICIENCY offers a compelling driving experience characterized by strong acceleration and relaxed cruising. The high torque output of the diesel engine means that brisk acceleration is available from low engine speeds, making overtaking and merging onto highways effortless. The 7G-TRONIC PLUS transmission complements the engine well, providing smooth and timely gear changes. While not a sports car, the E 350 CDI offers a confident and composed feel on the road. Compared to the 1.8L gasoline variants, the E 350 CDI provides significantly more power and torque, resulting in noticeably quicker acceleration and a more relaxed driving experience, especially when fully loaded or towing. Compared to the E 350 gasoline model, the CDI offers superior fuel economy and a more robust low-end torque delivery, but lacks the higher-revving character of the gasoline engine.

Equipment & Trim Levels

The E 350 CDI BlueEFFICIENCY typically came well-equipped as standard. Common features included leather upholstery, automatic climate control, a premium audio system, power-adjustable front seats, and a multi-function steering wheel. Optional extras included features like a panoramic sunroof, advanced parking assist systems, adaptive cruise control, and upgraded interior trim options. The “BlueEFFICIENCY” package itself included features like optimized aerodynamics and low-rolling-resistance tires to further improve fuel economy. Trim levels varied slightly by market, but generally offered options for different wheel designs, interior color schemes, and exterior accents.

Chassis & Braking

The S212 E-Class featured a sophisticated chassis design. The front suspension utilized a multi-link independent setup with coil springs and a stabilizer bar. The rear suspension also employed a multi-link independent design, often with optional air suspension for improved ride comfort and load leveling. Braking duties were handled by ventilated disc brakes on all four wheels. Anti-lock braking system (ABS) and electronic stability control (ESP) were standard features, providing enhanced safety and control. The E 350 CDI, due to its higher weight and performance, often featured slightly upgraded brake components compared to the lower-powered models.

Market Reception & Comparison

The E 350 CDI BlueEFFICIENCY was generally well-received by automotive critics. It was praised for its powerful and efficient engine, comfortable ride, and spacious interior. Critics noted the excellent balance between performance and fuel economy, making it a practical choice for long-distance drivers. Compared to other diesel variants in the E-Class range, the E 350 CDI offered a significant power upgrade over the E 250 CDI while remaining more affordable than the E 350 gasoline model. Its fuel economy was competitive with other diesel station wagons in its class.

Legacy

The OM 642 engine family, including the OM 642.852 found in the E 350 CDI, is known for its durability and reliability. With proper maintenance, these engines can accumulate high mileage without major issues. The 7G-TRONIC PLUS transmission is also generally considered reliable, although regular fluid changes are essential. On the used car market, the S212 E 350 CDI BlueEFFICIENCY remains a desirable option for buyers seeking a luxurious and capable station wagon. However, potential buyers should be aware of the potential for diesel particulate filter (DPF) issues, particularly if the vehicle has been primarily used for short trips. Overall, the E 350 CDI BlueEFFICIENCY represents a well-engineered and refined vehicle that continues to offer a compelling combination of performance, efficiency, and practicality.