2014-2016 Mercedes-Benz E-class T-modell (S212 facelift ) E 350 BlueTEC V6 (258 Hp) 9G-TRONIC

The Mercedes-Benz E 350 BlueTEC T-modell (S212 facelift), produced from July 2014 to July 2016, represents a compelling blend of luxury, practicality, and diesel efficiency within the E-Class range. Positioned as a mid-to-upper trim level within the S212 wagon lineup, it offered a sophisticated alternative to the gasoline-powered E 350 and served as a more economical option compared to the high-performance E 63 AMG. This variant combined a potent V6 turbodiesel engine with Mercedes-Benz’s advanced 9G-TRONIC nine-speed automatic transmission, targeting buyers seeking a refined long-distance cruiser with ample cargo space and strong fuel economy. The “facelift” designation refers to the styling and technological updates applied to the S212 E-Class in 2013, enhancing its overall appeal.

Technical Specifications

Powertrain & Engine Architecture

The heart of the E 350 BlueTEC T-modell is the OM 642.852 3.0-liter V6 turbodiesel engine. This engine is a sophisticated design featuring a common-rail direct fuel injection system, delivering fuel at extremely high pressure for optimized combustion. The engine utilizes a variable geometry turbocharger (VGT) and an intercooler to maximize power and efficiency. The DOHC (Double Overhead Camshaft) valvetrain, with four valves per cylinder, further enhances breathing and performance. The “BlueTEC” designation signifies the inclusion of advanced emissions control technologies, including a selective catalytic reduction (SCR) system utilizing AdBlue (diesel exhaust fluid) to reduce nitrogen oxide (NOx) emissions, ensuring compliance with stringent Euro 6 standards. The 9G-TRONIC nine-speed automatic transmission is a key component, offering a wide range of gear ratios for improved fuel economy and smooth acceleration. This transmission features a torque converter lockup clutch that engages in most gears, minimizing slippage and maximizing efficiency.

Driving Characteristics

The E 350 BlueTEC T-modell delivers a refined and effortless driving experience. The 620 Nm (457 lb-ft) of torque, available from a low 1600 rpm, provides strong acceleration in virtually any gear. While not as overtly sporty as some of its gasoline-powered siblings, the E 350 BlueTEC offers a 0-60 mph time of around 6.3 seconds, which is more than adequate for most driving situations. The 9G-TRONIC transmission contributes to smooth gear changes and helps keep the engine in its optimal power band. The long gear ratios prioritize fuel efficiency, especially during highway cruising. Compared to the E 350 with the gasoline V6, the BlueTEC variant offers significantly better fuel economy, but with a slight trade-off in outright acceleration. The diesel engine’s inherent torque advantage makes it particularly well-suited for towing and carrying heavy loads.

Equipment & Trim Levels

The E 350 BlueTEC T-modell typically came well-equipped as standard. Features included leather upholstery, automatic climate control, a premium audio system, and a comprehensive suite of safety technologies such as adaptive cruise control, lane keeping assist, and automatic emergency braking. The interior featured high-quality materials and a sophisticated design. Optional extras included a panoramic sunroof, upgraded leather packages, a rear-seat entertainment system, and advanced driver assistance features like blind-spot monitoring. Trim levels varied slightly by market, but generally offered options for enhanced interior trim and exterior styling.

Chassis & Braking

The S212 E-Class wagon utilized a sophisticated suspension system designed to balance comfort and handling. The front suspension featured a multi-link setup with coil springs, while the rear suspension employed an independent multi-link design. Air suspension was available as an option, providing adjustable ride height and improved ride comfort. Braking duties were handled by ventilated discs on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESC) were standard features, enhancing safety and control. The E 350 BlueTEC, due to its increased weight compared to some other E-Class variants, often featured slightly stiffer suspension components to maintain handling balance.

Market Reception & Comparison

The E 350 BlueTEC T-modell was generally well-received by automotive critics. It was praised for its refined driving experience, strong fuel economy, and spacious interior. Compared to the gasoline-powered E 350, the BlueTEC variant offered a significant advantage in fuel efficiency, making it a popular choice for drivers who frequently cover long distances. However, some critics noted that the diesel engine was slightly noisier than the gasoline engine. Compared to the E 250 BlueTEC, the E 350 BlueTEC offered a substantial power increase, justifying its higher price point. Reliability reports generally indicate that the OM 642 engine is robust and durable, although maintenance costs can be higher than for gasoline engines due to the complexity of the emissions control system.

Legacy

The Mercedes-Benz E 350 BlueTEC T-modell (S212 facelift) remains a desirable used car option today. The OM 642 engine is known for its longevity and relatively straightforward maintenance, although preventative maintenance of the emissions systems is crucial. The 9G-TRONIC transmission has also proven to be reliable. These wagons offer a compelling combination of luxury, practicality, and fuel efficiency, making them a popular choice for families and drivers who appreciate a refined driving experience. The availability of parts and qualified mechanics ensures that these vehicles can be kept on the road for many years to come. The S212 E-Class wagon, in general, is considered a well-built and durable vehicle, and the E 350 BlueTEC variant represents a particularly well-rounded and capable option.