The Mercedes-Benz E 350 BlueTEC V6, produced between 2009 and January 2013, represented a significant offering within the W212 E-Class range. Positioned as a diesel-powered, mid-to-upper trim level, it aimed to deliver a blend of performance, efficiency, and luxury. This variant utilized a 3.0-liter V6 turbodiesel engine paired with the 7G-TRONIC PLUS seven-speed automatic transmission, catering to buyers seeking a refined and capable grand tourer. The W212 generation E-Class, launched in 2009, was a crucial model for Mercedes-Benz, continuing the lineage of a vehicle known for its engineering excellence and sophisticated design.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W212) |
| Type | E 350 BlueTEC V6 (211 Hp) 7G-TRONIC PLUS |
| Start of production | 2009 |
| End of production | January, 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 9.7-10 l/100 km (24.2 – 23.5 US mpg) |
| Fuel consumption (extra urban) | 5.2-5.6 l/100 km (45.2 – 42 US mpg) |
| Fuel consumption (combined) | 6.8-7.2 l/100 km (34.6 – 32.7 US mpg) |
| CO2 emissions | 180-188 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 | 240 km/h (149.13 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.4 kg/Hp |
| Weight-to-torque ratio | 3.3 kg/Nm |
| Power | 211 Hp @ 3400 rpm |
| Torque | 540 Nm @ 1600-2400 rpm (398.28 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 | 16.5:1 |
| 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 | 1770 kg (3902.18 lbs.) |
| Max. weight | 2370 kg (5224.96 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space | 540 l (19.07 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 (braked) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load (unbraked) | 750 kg (1653.47 lbs.) |
| Length | 4868 mm (191.65 in.) |
| Width | 1854 mm (72.99 in.) |
| Width (with mirrors) | 2071 mm (81.54 in.) |
| Height | 1470 mm (57.87 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1600 mm (62.99 in.) |
| Rear track | 1619 mm (63.74 in.) |
| Front overhang | 841 mm (33.11 in.) |
| Rear overhang | 1153 mm (45.39 in.) |
| Drag coefficient (Cd) | 0.27 |
| Turning circle | 11.25 m (36.91 ft.) |
| Drivetrain | Rear wheel drive |
| Gearbox | 7 gears, automatic transmission G-TRONIC |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic |
| Tires size | 225/55 R16 |
| Wheel rims size | 7.5J x 16 |
Powertrain & Engine Architecture
The heart of the E 350 BlueTEC was the OM 642.850 3.0-liter V6 diesel engine. This engine was a sophisticated design featuring a common rail direct injection system, a variable geometry turbocharger, and an intercooler. The common rail system allowed for precise fuel delivery, optimizing combustion efficiency and reducing emissions. The V6 configuration provided inherent smoothness and balance, contributing to the refined driving experience. The engine produced 211 horsepower at 3400 rpm and a substantial 540 Nm (398 lb-ft) of torque between 1600 and 2400 rpm. This torque output was a key characteristic, providing strong acceleration and effortless cruising. The 7G-TRONIC PLUS seven-speed automatic transmission was specifically tuned to complement the engine’s characteristics, offering smooth and responsive gear changes. It featured a torque converter lock-up clutch to improve efficiency at cruising speeds.
Driving Characteristics
The E 350 BlueTEC V6 Automatic offered a comfortable and refined driving experience. The abundance of low-end torque meant that the car felt responsive in everyday driving situations, with minimal need for downshifting. While not a sports car, the engine provided ample power for overtaking and highway cruising. The 7G-TRONIC transmission contributed to a seamless driving experience, with well-spaced gear ratios. Compared to the E 350 gasoline variants, the BlueTEC offered superior fuel economy and a more relaxed driving style. Compared to the higher-performance E 500 or E 63 AMG models, the E 350 BlueTEC prioritized efficiency and comfort over outright speed. The automatic transmission, while smooth, didn’t offer the same level of driver engagement as a manual gearbox.
Equipment & Trim Levels
The E 350 BlueTEC typically came well-equipped, reflecting its position in the E-Class lineup. Standard features often included leather upholstery, automatic climate control, a premium audio system, and a host of safety features such as ABS, ESP, and multiple airbags. Optional extras could include a navigation system, a panoramic sunroof, adaptive cruise control, and parking assistance systems. Interior trim levels varied, with options for wood or aluminum accents. The overall interior design emphasized luxury and sophistication, with high-quality materials and a focus on ergonomics.
Chassis & Braking
The W212 E-Class featured a sophisticated chassis design with an independent multi-link suspension at both the front and rear. This suspension setup provided a comfortable ride while maintaining good handling characteristics. The E 350 BlueTEC typically came equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The braking system was enhanced by ABS (Anti-lock Braking System) and ESP (Electronic Stability Program) to ensure safe and controlled braking in various conditions. Steering was via a hydraulic power steering system, offering a balanced feel and precise control.
Market Reception & Comparison
The E 350 BlueTEC V6 was generally well-received by automotive critics. It was praised for its fuel efficiency, refined driving experience, and comfortable interior. The diesel engine was noted for its quiet operation and strong torque output. Compared to other E-Class variants, the BlueTEC offered a compelling alternative for buyers prioritizing economy and long-distance comfort. Fuel economy figures consistently outperformed those of the gasoline-powered E 350, making it an attractive option for high-mileage drivers. Reliability was generally good, although diesel engines can be more complex to maintain than their gasoline counterparts.
Legacy
The OM 642 engine family, including the OM 642.850 found in the E 350 BlueTEC, has proven to be a durable and reliable powertrain. While diesel engines require diligent maintenance, these engines are known for their longevity. On the used car market, the E 350 BlueTEC V6 remains a desirable option for buyers seeking a comfortable, efficient, and well-equipped luxury sedan. However, potential buyers should be aware of the potential costs associated with diesel emissions systems maintenance, particularly the diesel particulate filter (DPF). Overall, the E 350 BlueTEC V6 represents a well-engineered and capable vehicle that continues to offer a compelling value proposition in the used car market.
