The Mercedes-Benz S 300 BlueTEC HYBRID, produced between 2013 and 2017, was a long-wheelbase (V222) variant of the flagship S-Class sedan. Positioned as a fuel-efficient alternative within the S-Class range, it combined a diesel engine with a mild hybrid system. This model aimed to deliver the luxury and refinement expected of an S-Class while significantly improving fuel economy compared to its gasoline-powered siblings. It was primarily marketed in Europe and other regions where diesel engines were popular, offering a compelling blend of performance and efficiency in the luxury segment.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-class |
| Generation | S-class Long (V222) |
| Type | S 300 BlueTEC (231 Hp) HYBRID G-TRONIC |
| Start of production | 2013 |
| End of production | 2017 |
| Powertrain Architecture | FHEV (Full Hybrid Electric Vehicle) |
| Body type | Sedan |
| Seats | 4 |
| Doors | 4 |
| Fuel consumption (urban) | 4.7-4.8 l/100 km (50-49 US mpg, 60.1-58.9 UK mpg, 21.3-20.8 km/l) |
| Fuel consumption (extra urban) | 4.3-4.6 l/100 km (54.7-51.1 US mpg, 65.7-61.4 UK mpg, 23.3-21.7 km/l) |
| Fuel consumption (combined) | 4.4-4.7 l/100 km (53.5-50 US mpg, 64.2-60.1 UK mpg, 22.7-21.3 km/l) |
| CO2 emissions | 115-124 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.6 sec |
| Acceleration 0 – 62 mph | 7.6 sec |
| Acceleration 0 – 60 mph | 7.2 sec |
| Maximum speed | 240 km/h (149.13 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.8 kg/Hp, 113.5 Hp/tonne |
| Weight-to-torque ratio | 4.1 kg/Nm, 245.7 Nm/tonne |
| Gross battery capacity | 0.8 kWh |
| Electric motor power | 27 Hp |
| Electric motor Torque | 250 Nm (184.39 lb.-ft.) |
| System power | 231 Hp |
| Engine Power | 204 Hp @ 3800 rpm |
| Power per litre | 95.2 Hp/l |
| Torque | 500 Nm @ 1600-1800 rpm (368.78 lb.-ft. @ 1600-1800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 651.921 |
| Engine displacement | 2143 cm3 (130.77 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Compression ratio | 16.2:1 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 2035 kg (4486.41 lbs.) |
| Max. weight | 2750 kg (6062.71 lbs.) |
| Max load | 715 kg (1576.31 lbs.) |
| Trunk (boot) space – minimum | 510 l (18.01 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 5246 mm (206.54 in.) |
| Width | 1899 mm (74.76 in.) |
| Height | 1496 mm (58.9 in.) |
| Wheelbase | 3165 mm (124.61 in.) |
| Front track | 1624 mm (63.94 in.) |
| Rear (Back) track | 1637 mm (64.45 in.) |
| Front overhang | 888 mm (34.96 in.) |
| Rear overhang | 1193 mm (46.97 in.) |
| Minimum turning circle | 12.3 m (40.35 ft.) |
| Drive wheel | Rear wheel drive |
| Number of gears | 7 |
| Gearbox type | automatic transmission G-TRONIC PLUS |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/55 R17 |
| Wheel rims size | 17 |
INTRODUCTION
The Mercedes-Benz S 300 BlueTEC HYBRID, part of the V222 S-Class generation produced from 2013 to 2017, represented a significant step towards greater efficiency in the luxury sedan segment. The V222 generation S-Class, launched in 2013, was a technological tour-de-force, introducing numerous innovations in safety, comfort, and performance. The S 300 BlueTEC HYBRID specifically targeted buyers seeking a balance between the S-Class experience and reduced running costs. It occupied a middle ground in the S-Class lineup, positioned above the base S 300 but below the more powerful S 500 and AMG variants. The “Long” designation indicates an extended wheelbase, providing increased rear passenger legroom, a particularly important feature in markets like China and other parts of Asia.
Powertrain & Engine Architecture
At the heart of the S 300 BlueTEC HYBRID lies the OM 651.921, a 2.1-liter inline-four cylinder diesel engine. This engine, a mainstay of the Mercedes-Benz lineup, is renowned for its efficiency and durability. It features a sophisticated commonrail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A turbocharger with an intercooler further enhances performance, boosting power output to 204 horsepower at 3800 rpm and 500 Nm (368.78 lb-ft) of torque between 1600 and 1800 rpm. The “BlueTEC” designation signifies the inclusion of advanced emissions control technologies, including a selective catalytic reduction (SCR) system that uses AdBlue (diesel exhaust fluid) to reduce nitrogen oxide (NOx) emissions.
The hybrid component consists of a 27 horsepower electric motor integrated into the powertrain. This motor isn’t designed for extended electric-only driving; instead, it provides assistance during acceleration, regenerative braking to recapture energy, and enables a smooth start-stop function. The system utilizes a 0.8 kWh battery pack. The transmission is a 7-speed G-TRONIC PLUS automatic, known for its smooth and responsive shifts. This transmission is specifically tuned to work seamlessly with both the diesel engine and the electric motor, optimizing fuel efficiency and driveability.
Driving Characteristics
The S 300 BlueTEC HYBRID delivers a refined and comfortable driving experience, characteristic of the S-Class. While not as overtly powerful as its six or eight-cylinder counterparts, the 231 combined system horsepower provides ample performance for everyday driving and highway cruising. Acceleration from 0 to 100 km/h (0-62 mph) takes 7.6 seconds. The electric motor provides an immediate boost of torque, filling in gaps in the diesel engine’s power delivery and contributing to a surprisingly responsive feel. The G-TRONIC PLUS transmission shifts smoothly and intelligently, selecting the optimal gear for any given situation. The long wheelbase and sophisticated suspension contribute to a remarkably smooth ride, even on uneven surfaces. Compared to the more powerful S-Class models, the S 300 BlueTEC HYBRID prioritizes efficiency over outright performance, making it a more relaxed and economical choice for those who don’t require blistering acceleration.
Equipment & Trim Levels
The S 300 BlueTEC HYBRID came generously equipped, reflecting its status as a flagship luxury sedan. Standard features typically included leather upholstery, wood trim, automatic climate control, a premium sound system, and a comprehensive suite of safety features, including adaptive cruise control, lane keeping assist, and automatic emergency braking. The long wheelbase provided significantly more rear legroom than the standard S-Class. Optional extras included a panoramic sunroof, massaging seats, a rear entertainment system, and various customization options for interior trim and exterior paint. The interior design was consistent with other V222 S-Class models, featuring a dual-screen display for the infotainment system and instrument cluster, creating a modern and high-tech ambiance.
Chassis & Braking
The S 300 BlueTEC HYBRID utilizes an independent multi-link suspension system at both the front and rear axles, providing a comfortable and controlled ride. The suspension is electronically controlled, adapting to road conditions and driving style. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. The car is equipped with ABS (Anti-lock Braking System), Electronic Stability Program (ESP), and other advanced safety systems. Due to its weight (2035 kg / 4486.41 lbs), the braking system is robust and reliable. Stabilizer bars are fitted front and rear to minimize body roll during cornering.
Market Reception & Comparison
The S 300 BlueTEC HYBRID was generally well-received by automotive critics, who praised its fuel efficiency, comfortable ride, and luxurious interior. However, some reviewers noted that the four-cylinder diesel engine lacked the refinement and power of the larger engines available in the S-Class range. Compared to the S 350 BlueTEC, which featured a V6 diesel engine, the S 300 offered slightly lower performance but significantly better fuel economy. Against gasoline-powered S-Class models, the S 300 BlueTEC HYBRID offered a substantial advantage in fuel efficiency, making it an attractive option for drivers who prioritize economy.
Legacy
The Mercedes-Benz S 300 BlueTEC HYBRID represents an important step in the evolution of the S-Class, demonstrating Mercedes-Benz’s commitment to improving fuel efficiency without compromising luxury or comfort. The OM 651 engine family is known for its durability and reliability, and the hybrid system, while relatively simple, has proven to be robust in service. On the used car market, the S 300 BlueTEC HYBRID offers a compelling value proposition, providing S-Class luxury at a more affordable price point. However, potential buyers should be aware of the maintenance requirements of the diesel emissions system, including the need to regularly replenish the AdBlue fluid. Overall, the S 300 BlueTEC HYBRID remains a desirable and well-regarded luxury sedan.
