The Mercedes-Benz E-Class T-modell (S212) E 350 CDI BlueEFFICIENCY V6 4MATIC, produced from February to October 2010, represents a compelling blend of performance, practicality, and efficiency within the fifth generation of the E-Class estate (wagon) range. Positioned as a mid-to-upper trim level, this variant offered a sophisticated diesel powertrain coupled with Mercedes-Benz’s renowned 4MATIC all-wheel-drive system and the 7G-TRONIC automatic transmission. It catered to buyers seeking a luxurious and capable vehicle for both daily commuting and long-distance travel, particularly those requiring substantial cargo space. The S212 generation, introduced in 2009, aimed to modernize the E-Class while retaining its core values of comfort and engineering excellence.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class T-modell (S212) |
| Type | E 350 CDI BlueEFFICIENCY V6 (231 Hp) 4MATIC 7G-TRONIC |
| Start of production | February, 2010 |
| End of production | October, 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 9.4-9.5 l/100 km (25 – 24.8 US mpg) |
| Fuel consumption (extra urban) | 6.4-6.5 l/100 km (36.8 – 36.2 US mpg) |
| Fuel consumption (combined) | 7.6-7.7 l/100 km (30.9 – 30.5 US mpg) |
| CO2 emissions | 200-203 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.5 sec |
| Acceleration 0 – 62 mph | 7.5 sec |
| Acceleration 0 – 60 mph | 7.1 sec |
| Maximum speed | 235 km/h (146.02 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 8.3 kg/Hp, 120.6 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 282 Nm/tonne |
| Power | 231 Hp @ 3800 rpm |
| Torque | 540 Nm @ 1600-2400 rpm (398.28 lb.-ft. @ 1600-2400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 642.856 |
| 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 | 1915 kg (4221.85 lbs.) |
| Max. weight | 2565 kg (5654.86 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.) |
| 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 | Ventilated discs, 300 mm |
Powertrain & Engine Architecture
The heart of the E 350 CDI BlueEFFICIENCY is the OM 642.856 3.0-liter V6 diesel engine. This engine, a mainstay of Mercedes-Benz’s diesel offerings, utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. The engine features a single turbocharger with an intercooler, boosting power and torque while improving efficiency. The valvetrain employs double overhead camshafts (DOHC) with four valves per cylinder, contributing to its responsive nature. The 7G-TRONIC automatic transmission, a seven-speed unit, provides smooth and efficient gear changes. This transmission was known for its adaptability, offering both comfort-oriented and sport-tuned shift programs. The 4MATIC all-wheel-drive system distributes power between the front and rear axles, enhancing traction and stability, particularly in adverse weather conditions.
Driving Characteristics
The E 350 CDI 4MATIC offered a refined and capable driving experience. The 540 Nm (398 lb-ft) of torque, available from a low 1600 rpm, provided strong acceleration and effortless cruising. While not a sports car, the 7.5-second 0-60 mph time was respectable for a large estate. The 7G-TRONIC transmission contributed to a seamless power delivery, and the 4MATIC system instilled confidence in various driving conditions. Compared to the base E 250 CDI, the E 350 CDI offered significantly more power and a more relaxed driving experience, especially when fully loaded or towing. Compared to the petrol-powered E 350, the CDI offered superior fuel economy and a broader torque curve, making it ideal for long journeys.
Equipment & Trim Levels
The E 350 CDI BlueEFFICIENCY 4MATIC typically came standard with a comprehensive list of features, including leather upholstery, automatic climate control, a premium audio system, and parking sensors. Optional extras included a panoramic sunroof, advanced navigation system, adaptive cruise control, and upgraded interior trim options. The “BlueEFFICIENCY” designation indicated the inclusion of fuel-saving technologies, such as optimized aerodynamics and low-rolling-resistance tires. Interior appointments were generally luxurious, with high-quality materials and a focus on comfort and ergonomics.
Chassis & Braking
The S212 E-Class utilized a sophisticated chassis design featuring a multi-link independent suspension at all four corners. The front suspension employed coil springs, while the rear suspension often included optional air suspension for enhanced ride comfort and load leveling. Braking duties were handled by ventilated disc brakes on all wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESP) were standard features, enhancing safety and control. Stabilizer bars were fitted front and rear to minimize body roll during cornering.
Market Reception & Comparison
The E 350 CDI BlueEFFICIENCY 4MATIC was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and practical estate body style. Fuel economy was a strong point, particularly compared to petrol-powered alternatives. However, some critics noted that the diesel engine could be slightly noisy compared to its petrol counterparts. Compared to the E 250 CDI, the E 350 CDI offered a noticeable performance upgrade, justifying the higher price tag for buyers prioritizing power and refinement. The 4MATIC system added a premium over rear-wheel-drive models, but provided added security and capability in inclement weather.
Legacy
The OM 642 engine family, including the OM 642.856 found in the E 350 CDI, has proven to be remarkably durable and reliable. With proper maintenance, these engines can accumulate high mileage without major issues. The 7G-TRONIC transmission is also generally considered reliable, although fluid changes are crucial for longevity. Today, the S212 E-Class T-modell E 350 CDI 4MATIC represents a compelling value proposition in the used car market, offering a blend of luxury, practicality, and fuel efficiency. Its robust powertrain and well-engineered chassis ensure that it remains a capable and comfortable vehicle for years to come.
