The Mercedes-Benz E 450 4MATIC, introduced with the W214 E-Class generation in 2023, represents a significant evolution in the mid-size luxury sedan segment. Positioned as a high-performance variant within the lineup, it combines a potent inline-six cylinder engine with mild hybrid technology and a sophisticated all-wheel-drive system. This model aims to deliver a balance of exhilarating performance, refined comfort, and improved fuel efficiency, catering to buyers seeking a premium driving experience. The E 450 4MATIC serves as a step up from the base E 350 models, offering increased power and a more dynamic driving character, while remaining below the more focused AMG-tuned variants.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W214) |
| Type | E 450 (381 Hp) Mild Hybrid 4MATIC 9G-TRONIC |
| Start of production | 2023 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Combined fuel consumption (WLTP) | 7.6-8.4 l/100 km (30.9 – 28 US mpg, 37.2 – 33.6 UK mpg, 13.2 – 11.9 km/l) |
| CO2 emissions (WLTP) | 171-190 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.5 sec |
| Acceleration 0 – 62 mph | 4.5 sec |
| Acceleration 0 – 60 mph | 4.3 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6d-ISC-FCM |
| Weight-to-power ratio | 5 kg/Hp, 201.1 Hp/tonne |
| Weight-to-torque ratio | 3.8 kg/Nm, 263.9 Nm/tonne |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 23 Hp |
| Electric motor Torque | 205 Nm (151.2 lb.-ft.) |
| Electric motor location | Between the combustion engine and the transmission |
| Power | 381 Hp @ 5800-6100 rpm |
| Torque | 500 Nm @ 1800-5000 rpm (368.78 lb.-ft. @ 1800-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 256 |
| Engine displacement | 2999 cm3 (183.01 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92.4 mm (3.64 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | DOHC, CAMTRONIC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Kerb Weight | 1895 kg (4177.76 lbs.) |
| Max. weight | 2585 kg (5698.95 lbs.) |
| Max load | 690 kg (1521.19 lbs.) |
| Trunk (boot) space – minimum | 540 l (19.07 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 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 | 4949 mm (194.84 in.) |
| Width | 1880 mm (74.02 in.) |
| Width including mirrors | 2065 mm (81.3 in.) |
| Height | 1469 mm (57.83 in.) |
| Wheelbase | 2961 mm (116.57 in.) |
| Front track | 1629 mm (64.13 in.) |
| Rear (Back) track | 1643 mm (64.69 in.) |
| Front overhang | 848 mm (33.39 in.) |
| Rear overhang | 1140 mm (44.88 in.) |
| Drag coefficient (Cd) | 0.23 |
| Minimum turning circle (turning diameter) | 12 m (39.37 ft.) |
| Drivetrain Architecture | ICE and electric motor drive all four wheels, operating in mixed mode. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission G-TRONIC |
| Front suspension | Independent multi-link suspension, Transverse stabilizer, Air Suspension – Optional |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer, Air Suspension – Optional |
| 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 | Front: 225/55 R18; 245/45 R19, Rear: 225/55 R18; 245/45 R19; 275/40 R19 |
| Wheel rims size | Front: 8J x 18; 8.5J x 19, Rear: 8J x 18; 8.5J x 19; 9.5J x 19 |
Powertrain & Engine Architecture
At the heart of the E 450 4MATIC lies the M 256 3.0-liter inline-six cylinder engine. This engine utilizes direct injection and a twin-scroll turbocharger with an intercooler to deliver a substantial 381 horsepower and 500 Nm (368.78 lb.-ft.) of torque. The engine’s CAMTRONIC valve lift adjustment system optimizes performance and efficiency across a wide range of driving conditions. Integrated into this powertrain is a 48-volt mild hybrid system, featuring a 23 hp electric motor and a 48V lithium-ion battery. This system provides a power boost during acceleration, enables smoother start/stop functionality, and allows for regenerative braking to recoup energy. The engine is paired with Mercedes-Benz’s 9G-TRONIC nine-speed automatic transmission, known for its smooth shifts and wide gear ratios. This transmission is specifically calibrated for the E 450 to optimize performance and fuel economy.
Driving Characteristics
The E 450 4MATIC delivers a refined yet assertive driving experience. The combination of the inline-six engine and mild hybrid system provides strong and readily available power throughout the rev range. Acceleration from 0 to 60 mph is achieved in approximately 4.3 seconds. The 9G-TRONIC transmission contributes to smooth and seamless gear changes, enhancing both comfort and performance. Compared to the base E 350 models, the E 450 offers a noticeably more responsive and engaging driving experience. While not as overtly sporty as the AMG variants, the E 450 strikes a compelling balance between performance and luxury. The 4MATIC all-wheel-drive system provides excellent traction and stability in various weather conditions.
Equipment & Trim Levels
The E 450 4MATIC typically comes well-equipped with standard features including Mercedes-Benz User Experience (MBUX) infotainment system with a large touchscreen display, premium upholstery, ambient lighting, and a comprehensive suite of driver-assistance systems. Optional extras include advanced driver-assistance packages, upgraded sound systems, panoramic sunroof, and various interior trim options. The interior design emphasizes luxury and technology, with high-quality materials and a modern aesthetic. Trim levels often offer different wheel designs, exterior styling elements, and interior finishes.
Chassis & Braking
The W214 E-Class utilizes an independent multi-link suspension setup for both the front and rear axles. The E 450 often features a sport-tuned suspension as standard, offering a more controlled and responsive ride. Optional air suspension is available, providing adjustable ride height and enhanced comfort. Braking duties are handled by ventilated discs on all four wheels, coupled with ABS, electronic brake-force distribution, and brake assist systems. The chassis is designed to provide a balance of comfort, stability, and handling precision.
Market Reception & Comparison
The E 450 4MATIC has been generally well-received by automotive critics, praised for its powerful engine, refined ride quality, and advanced technology. Compared to its siblings, the E 350, the E 450 offers a significant performance upgrade, justifying its higher price point for buyers prioritizing power and responsiveness. Fuel economy is respectable for a vehicle of this class, benefiting from the mild hybrid system. Reliability is generally considered good, consistent with Mercedes-Benz’s reputation for build quality. However, the complexity of the powertrain and advanced technology may result in higher maintenance costs compared to simpler models.
Legacy
The W214 E 450 4MATIC represents a continuation of Mercedes-Benz’s commitment to blending luxury, performance, and technology. The M 256 engine, with its mild hybrid integration, is expected to be a durable and reliable powertrain. As the W214 generation ages, the E 450 4MATIC is likely to hold its value well in the used car market, appealing to buyers seeking a well-equipped and capable luxury sedan. Its advanced features and strong performance will ensure its continued relevance in the years to come.
