2020-2023 Mercedes-Benz E-class (W213 facelift ) E 300de (306 Hp) Plug-in Hybrid 4MATIC 9G-TRONIC

The Mercedes-Benz E 300de, introduced in June 2020 as part of the W213 facelift, represents a significant step in the brand’s push towards electrified luxury. This plug-in hybrid (PHEV) variant combines a diesel engine with an electric motor, offering a blend of efficiency, performance, and reduced emissions. Produced through 2023, the E 300de was primarily aimed at the European market, where diesel engines remained popular and government incentives favored plug-in hybrid technology. It slots into the mid-to-upper range of the W213 E-Class lineup, offering a more sophisticated and environmentally conscious alternative to the traditional gasoline-powered models.

Technical Specifications

Powertrain & Engine Architecture

The E 300de’s powertrain centers around the OM 654.920, a 2.0-liter inline-four diesel engine. This engine is a member of Mercedes-Benz’s modular engine family, known for its efficiency and refinement. It utilizes a common-rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. A turbocharger with an intercooler further enhances performance. The engine produces 194 horsepower and 400 Nm (295 lb-ft) of torque. Coupled with this is a 122 horsepower electric motor, integrated between the engine and the 9G-TRONIC nine-speed automatic transmission. The electric motor contributes an additional 440 Nm (324 lb-ft) of torque. The combined system output is 306 horsepower and 700 Nm (516 lb-ft) of torque. The 9G-TRONIC transmission is specifically calibrated to work seamlessly with the electric motor, providing smooth and efficient gear changes. The 13.5 kWh lithium-ion battery pack is located under the trunk floor, reducing cargo space slightly.

Driving Characteristics

The E 300de offers a surprisingly refined driving experience. In electric-only mode, it provides near-silent operation and brisk acceleration for city driving, with a range of 44-54 km (27-34 miles) on the WLTP cycle. When the diesel engine engages, the transition is almost imperceptible. The combined power output delivers strong acceleration, achieving 0-60 mph in around 5.6 seconds. The 9G-TRONIC transmission is well-tuned, offering quick and smooth shifts. Compared to the gasoline-powered E 300, the E 300de feels slightly heavier due to the battery pack, but the added torque from the electric motor compensates for this. Compared to the E 300d (diesel only), the E 300de offers similar performance but with the added benefit of electric driving capability. The E 300de is not as sporty as the E 450 or AMG variants, but it provides a comfortable and capable driving experience.

Equipment & Trim Levels

The E 300de typically came well-equipped, reflecting its position as a premium model. Standard features included Mercedes-Benz’s MBUX infotainment system with a large touchscreen display, leather upholstery, automatic climate control, and a suite of driver-assistance systems such as adaptive cruise control and lane-keeping assist. Optional extras included a panoramic sunroof, premium sound system, and various interior trim upgrades. The interior design mirrored that of other W213 E-Class models, with a focus on luxury and technology. Trim levels varied slightly depending on the market, but generally offered options for different interior color schemes and exterior styling packages.

Chassis & Braking

The E 300de utilizes a sophisticated suspension system designed for comfort and handling. It features a four-link front suspension and a multi-link rear suspension, both with coil springs and stabilizer bars. The suspension is tuned to provide a smooth ride while maintaining good body control. Braking duties are handled by ventilated disc brakes on all four wheels. The E 300de also incorporates regenerative braking, which helps to recharge the battery during deceleration. The 4MATIC all-wheel-drive system provides excellent traction in all weather conditions.

Market Reception & Comparison

The E 300de was generally well-received by automotive critics, who praised its fuel efficiency, refined driving experience, and advanced technology. It was seen as a compelling alternative to traditional gasoline and diesel vehicles, particularly in markets with strong incentives for plug-in hybrids. Compared to the E 300d, the E 300de offered lower running costs and the ability to drive in electric-only mode, but it came with a higher purchase price. Compared to the E 300 gasoline model, the E 300de offered significantly better fuel economy and lower emissions.

Legacy

The Mercedes-Benz E 300de represents an important step in the brand’s transition to electrification. The OM 654 diesel engine, combined with the electric motor and 9G-TRONIC transmission, proved to be a reliable and efficient powertrain. On the used car market, the E 300de holds its value well, particularly in Europe. The longevity of the battery pack remains a key consideration for potential buyers, but Mercedes-Benz offers extended warranties on the battery to provide peace of mind. The E 300de paved the way for future generations of Mercedes-Benz plug-in hybrid models, demonstrating the brand’s commitment to sustainable mobility.