The Mercedes-Benz E-Class Coupe (C238) facelift, specifically the E 450 4MATIC variant produced from 2020 to 2023, represents a sophisticated blend of performance, luxury, and efficiency within the mid-size coupe segment. This model year saw a significant refresh of the C238 generation, introducing updated styling, enhanced technology, and a refined powertrain. The E 450 4MATIC occupied the upper echelon of the coupe lineup, positioned as a premium offering above the E 350 models and serving as a more sporting alternative to the E-Class Sedan. It was primarily marketed towards buyers seeking a luxurious grand tourer with capable all-weather performance.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class Coupe (C238, facelift 2020) |
| Type | E 450 (367 Hp) EQ Boost 4MATIC 9G-TRONIC |
| Start of production | 2020 |
| End of production | 2023 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 11.1-11.6 l/100 km (21.2 – 20.3 US mpg) |
| Fuel consumption (extra urban) | 6.2-6.5 l/100 km (37.9 – 36.2 US mpg) |
| Fuel consumption (combined) | 8.0-8.4 l/100 km (29.4 – 28 US mpg) |
| CO2 emissions | 184-192 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.0 sec |
| Acceleration 0 – 62 mph | 5.0 sec |
| Acceleration 0 – 60 mph | 4.8 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | EURO 6d-ISC-FCM |
| Weight-to-power ratio | 5.1 kg/Hp |
| Weight-to-torque ratio | 3.8 kg/Nm |
| Gross battery capacity | 0.9 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 22 Hp |
| Electric motor Torque | 250 Nm (184.39 lb.-ft.) |
| Power | 367 Hp |
| Torque | 500 Nm @ 1600-4500 rpm (368.78 lb.-ft. @ 1600-4500 rpm) |
| Engine displacement | 2999 cm3 (183.01 cu. in.) |
| Number of cylinders | 6 |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 256 |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92.4 mm (3.64 in.) |
| Engine oil capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1890 kg (4166.74 lbs.) |
| Max. weight | 2505 kg (5522.58 lbs.) |
| Max load | 615 kg (1355.84 lbs.) |
| Trunk (boot) space (minimum) | 405 l (14.3 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| Permitted trailer load (with brakes) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load (without brakes) | 750 kg (1653.47 lbs.) |
| Length | 4835 mm (190.35 in.) |
| Width | 1860 mm (73.23 in.) |
| Width including mirrors | 2055 mm (80.91 in.) |
| Height | 1428 mm (56.22 in.) |
| Wheelbase | 2873 mm (113.11 in.) |
| Front track | 1605 mm (63.19 in.) |
| Rear track | 1609 mm (63.35 in.) |
| Number of gears | 9 |
| Gearbox type | Automatic (9G-TRONIC) |
Powertrain & Engine Architecture
The heart of the E 450 4MATIC is the M 256 3.0-liter inline-six engine. This engine is a marvel of modern engineering, featuring direct injection, a twin-scroll turbocharger, and an intercooler. The M 256 utilizes a NANOSLIDE cylinder coating, reducing friction and improving efficiency. Crucially, this engine incorporates Mercedes-Benz’s EQ Boost mild-hybrid system. This system employs a 48-volt electrical architecture and integrates a 22 horsepower electric motor between the engine and the transmission. The EQ Boost system provides several benefits, including smoother start/stop operation, energy recovery during deceleration, and a small power boost under acceleration. The engine is paired with Mercedes-Benz’s 9G-TRONIC nine-speed automatic transmission, known for its smooth shifts and wide gear ratio spread. The 4MATIC all-wheel-drive system distributes power between the front and rear axles, enhancing traction and stability in various driving conditions.
Driving Characteristics
The E 450 4MATIC delivers a refined and powerful driving experience. The combination of the inline-six engine and the EQ Boost system provides ample torque throughout the rev range, resulting in brisk acceleration – 0 to 60 mph in approximately 4.8 seconds. The 9G-TRONIC transmission contributes to smooth and seamless gear changes, enhancing comfort during both city driving and highway cruising. While not as overtly sporty as some competitors, the E 450 offers a balanced and engaging driving experience. The 4MATIC system provides confident handling and stability, particularly in inclement weather. Compared to the E 350 models, the E 450 offers a noticeable increase in performance and a more luxurious feel. It lacks the raw performance of the AMG-tuned E 53, but provides a more comfortable and refined grand touring experience.
Equipment & Trim Levels
The E 450 4MATIC came standard with a comprehensive array of features, including leather upholstery, heated and ventilated front seats, a premium sound system, and a large infotainment display with Mercedes-Benz’s MBUX system. MBUX offered voice control, augmented reality navigation, and a customizable user interface. Optional extras included a panoramic sunroof, advanced driver-assistance systems (such as adaptive cruise control and lane-keeping assist), and various interior trim options. The interior design emphasized luxury and sophistication, with high-quality materials and meticulous attention to detail. Dashboard configurations were typically dominated by dual 12.3-inch displays, creating a modern and integrated cockpit.
Chassis & Braking
The E 450 4MATIC features a sophisticated chassis designed to balance comfort and handling. The suspension utilizes a multi-link setup at both the front and rear, providing a smooth and controlled ride. The standard braking system consists of ventilated discs on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESC) are standard features. The steering system is a rack-and-pinion setup with electric power assistance, offering precise and responsive steering feel. The E 450 typically featured slightly stiffer suspension components compared to the base E-Class models, contributing to improved handling characteristics.
Market Reception & Comparison
The E 450 4MATIC was generally well-received by automotive critics, who praised its refined powertrain, luxurious interior, and advanced technology. Fuel economy was considered respectable for a vehicle of its size and performance, averaging around 29.4 mpg combined. Reliability reports have been generally positive, although some owners have reported minor issues with the infotainment system. Compared to rivals such as the BMW 5 Series and Audi A6, the E 450 4MATIC offered a compelling combination of luxury, performance, and technology. The EQ Boost system was seen as a significant advantage, providing a smoother and more efficient driving experience.
Legacy
The M 256 engine and 9G-TRONIC transmission have proven to be reliable and durable powertrains. The E 450 4MATIC continues to hold its value well in the used car market, appealing to buyers seeking a luxurious and capable grand tourer. The integration of mild-hybrid technology in this model foreshadowed Mercedes-Benz’s broader commitment to electrification. While newer E-Class models offer even more advanced features and technology, the C238 facelift E 450 4MATIC remains a desirable and well-regarded vehicle, representing a high point in the evolution of the E-Class Coupe.
