The Mercedes-Benz E 300d 9G-TRONIC, produced from February 2018 to 2020, represents a significant iteration within the W213 E-Class generation. Positioned as a premium mid-size executive sedan, the E 300d aimed to blend performance, efficiency, and luxury. This variant utilized a modern diesel engine paired with a sophisticated nine-speed automatic transmission, catering to drivers seeking a refined driving experience with strong fuel economy. It occupied a key position in the E-Class lineup, offering a step up in performance and features from the base E 200d models while remaining more accessible than the higher-performance E 450 or AMG variants.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W213) |
| Type (Engine) | E 300d (245 Hp) 9G-TRONIC |
| Start of production | February, 2018 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption at Low speed (WLTP) | 5.9 l/100 km (39.9 US mpg, 47.9 UK mpg, 16.9 km/l) |
| Fuel consumption at very high speed (WLTP) | 6.8 l/100 km (34.6 US mpg, 41.5 UK mpg, 14.7 km/l) |
| CO2 emissions (WLTP) | 155-179 g/km |
| Fuel consumption (economy) – urban | 5.8-6.1 l/100 km (40.6 – 38.6 US mpg, 48.7 – 46.3 UK mpg, 17.2 – 16.4 km/l) |
| Fuel consumption (economy) – extra urban | 4.4-4.5 l/100 km (53.5 – 52.3 US mpg, 64.2 – 62.8 UK mpg, 22.7 – 22.2 km/l) |
| Fuel consumption (economy) – combined | 4.9-5.7 l/100 km (48 – 41.3 US mpg, 57.6 – 49.6 UK mpg, 20.4 – 17.5 km/l) |
| CO2 emissions | 130-135 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 6.2 sec |
| Acceleration 0 – 62 mph | 6.2 sec |
| Acceleration 0 – 60 mph | 5.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d-TEMP-EVAP-ISC |
| Weight-to-power ratio | 6.8 kg/Hp, 147.6 Hp/tonne |
| Weight-to-torque ratio | 3.3 kg/Nm, 301.2 Nm/tonne |
| Power | 245 Hp |
| Power per litre | 125.6 Hp/l |
| Torque | 500 Nm @ 1600-2400 rpm (368.78 lb.-ft. @ 1600-2400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 654.920 |
| Engine displacement | 1950 cm3 (119 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 6.8 l (7.19 US qt | 5.98 UK qt) |
| Coolant | 12.5 l (13.21 US qt | 11 UK qt) |
| Kerb Weight | 1660 kg (3659.67 lbs.) |
| Max. weight | 2370 kg (5224.96 lbs.) |
| Max load | 710 kg (1565.28 lbs.) |
| Trunk (boot) space – minimum | 540 l (19.07 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Permitted trailer load with brakes (12%) | 2100 kg (4629.71 lbs.) |
| Length | 4923 mm (193.82 in.) |
| Width | 1852 mm (72.91 in.) |
| Width including mirrors | 2065 mm (81.3 in.) |
| Height | 1468 mm (57.8 in.) |
| Wheelbase | 2939 mm (115.71 in.) |
| Front overhang | 841 mm (33.11 in.) |
| Rear overhang | 1143 mm (45 in.) |
| Ride height (ground clearance) | 103 mm (4.06 in.) |
| Approach angle | 15.2° |
| Departure angle | 12.4° |
| Ramp-over (brakeover) angle | 8.7° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 9 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 |
Powertrain & Engine Architecture
The E 300d is powered by the OM 654.920, a 2.0-liter inline-four cylinder diesel engine. This engine is a key component of Mercedes-Benz’s modular engine family, known for its lightweight construction and advanced technology. It features a steel piston block with aluminum cylinder heads, contributing to reduced weight and improved thermal management. The engine utilizes a sophisticated common-rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A two-stage turbocharger with variable geometry turbine (VGT) technology provides both strong low-end torque and high-end power. The engine also incorporates a diesel particulate filter (DPF) and selective catalytic reduction (SCR) system to meet stringent Euro 6d-TEMP emission standards. The 9G-TRONIC nine-speed automatic transmission is integral to the E 300d’s efficiency and driving experience. This transmission offers a wide range of gear ratios, allowing the engine to operate in its optimal efficiency zone more frequently. It features a torque converter lockup clutch for improved fuel economy and a smooth, responsive shift quality.
Driving Characteristics
The E 300d 9G-TRONIC delivers a refined and comfortable driving experience. The 245 horsepower and 368 lb-ft of torque provide ample power for both city driving and highway cruising. Acceleration from 0 to 60 mph takes approximately 5.9 seconds, making it a relatively quick sedan. The nine-speed transmission contributes to relaxed highway cruising with low engine speeds, enhancing fuel economy. Compared to the E 200d, the E 300d offers noticeably more power and responsiveness. While not as sporty as the E 450 or AMG models, the E 300d provides a good balance of performance and efficiency. The automatic transmission is generally smooth and responsive, although some drivers may prefer the more direct control of a manual transmission. The rear-wheel drive configuration provides a balanced handling feel, although it can be less confident in slippery conditions compared to all-wheel drive variants.
Equipment & Trim Levels
The E 300d typically came well-equipped with standard features including Mercedes-Benz’s MBUX infotainment system with a large touchscreen display, dual 12.3-inch displays for instrumentation and infotainment, leather upholstery, automatic climate control, and a suite of safety features such as automatic emergency braking, lane keeping assist, and adaptive cruise control. Optional extras included features like a premium Burmester sound system, panoramic sunroof, ventilated and massaging front seats, and advanced driver assistance systems. Trim levels varied depending on the market, but generally included options like Sport Line, Luxury Line, and AMG Line, each offering different styling cues and equipment packages.
Chassis & Braking
The W213 E-Class features a sophisticated chassis design with an independent multi-link suspension at both the front and rear. This suspension setup provides a comfortable ride quality while maintaining good handling characteristics. The E 300d typically came equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS), electronic stability control (ESC), and traction control are standard safety features. The steering system is a rack-and-pinion type with electric power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The E 300d was generally well-received by automotive critics, who praised its blend of performance, efficiency, and luxury. The diesel engine was noted for its refinement and strong torque output, while the 9G-TRONIC transmission was lauded for its smooth shifting and wide gear range. Compared to the E 200d, the E 300d offered a significant performance upgrade without a substantial increase in fuel consumption. It provided a compelling alternative to gasoline-powered E-Class models, particularly for drivers who prioritize fuel economy and long-distance comfort.
Legacy
The OM 654 engine family, including the version used in the E 300d, has proven to be a reliable and durable powertrain. While diesel engines have faced increased scrutiny in recent years, the OM 654 has generally maintained a good reputation for longevity and relatively low maintenance costs. On the used car market, the E 300d 9G-TRONIC remains a desirable option for buyers seeking a well-equipped, efficient, and comfortable executive sedan. Its combination of performance, luxury, and fuel economy continues to make it a competitive choice in its segment.
