The Mercedes-Benz E-Class All-Terrain (S214) E 450 4MATIC, introduced in September 2023, represents the pinnacle of the fourth-generation E-Class All-Terrain lineup. Positioned as the premium variant, it combines the practicality of a station wagon (estate) with the capability of an all-wheel-drive crossover. This model builds upon the W214 E-Class platform, offering a luxurious and technologically advanced experience geared towards drivers seeking both comfort and performance in a versatile package. The E 450 4MATIC utilizes a mild hybrid powertrain to enhance efficiency and responsiveness.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class All-Terrain (S214) |
| Type | E 450 (381 Hp) Mild Hybrid 4MATIC 9G-TRONIC |
| Start of production | September, 2023 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Station wagon (estate), Crossover |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 8-8.7 l/100 km (29.4 – 27 US mpg, 35.3 – 32.5 UK mpg, 12.5 – 11.5 km/l) |
| CO2 emissions (WLTP) | 180-198 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.7 sec |
| Acceleration 0 – 62 mph | 4.7 sec |
| Acceleration 0 – 60 mph | 4.5 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6d-ISC-FCM |
| Weight-to-power ratio | 5.2 kg/Hp, 191.5 Hp/tonne |
| Weight-to-torque ratio | 4 kg/Nm, 251.3 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 | 9.9 l (10.46 US qt | 8.71 UK qt) |
| Kerb Weight | 1990 kg (4387.2 lbs.) |
| Max. weight | 2650 kg (5842.25 lbs.) |
| Max load | 660 kg (1455.05 lbs.) |
| Trunk (boot) space – minimum | 615 l (21.72 cu. ft.) |
| Trunk (boot) space – maximum | 1830 l (64.63 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 | 4950 mm (194.88 in.) |
| Width | 1889 mm (74.37 in.) |
| Width including mirrors | 2065 mm (81.3 in.) |
| Height | 1497 mm (58.94 in.) |
| Wheelbase | 2961 mm (116.57 in.) |
| Front track | 1626 mm (64.02 in.) |
| Rear (Back) track | 1641 mm (64.61 in.) |
| Front overhang | 848 mm (33.39 in.) |
| Rear overhang | 1141 mm (44.92 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle (turning diameter) | 12 m (39.37 ft.) |
| Drivetrain Architecture | ICE and electric motor drive all four wheels, mixed mode operation |
| 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 |
| Rear suspension | Independent multi-link suspension, Air suspension, Transverse stabilizer |
| 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 | 255/45 R19 |
| Wheel rims size | 19 |
INTRODUCTION
The S214 E-Class All-Terrain E 450 4MATIC, launched in late 2023, represents a significant evolution in Mercedes-Benz’s all-road wagon offerings. Built on the foundation of the W214 E-Class, it aims to bridge the gap between a traditional luxury sedan and a more rugged, capable vehicle. The All-Terrain variant, specifically, is designed to appeal to European markets where demand for such vehicles is high, though it is also available in the US. It offers increased ground clearance, standard 4MATIC all-wheel drive, and a more robust exterior appearance compared to the standard E-Class wagon. The E 450 4MATIC sits at the top of the All-Terrain range, offering the most powerful engine option and a comprehensive suite of standard features.
Powertrain & Engine Architecture
At the heart of the E 450 4MATIC lies the M 256 3.0-liter inline-six cylinder engine. This engine benefits from a mild hybrid system, incorporating a 48-volt electrical architecture and an integrated starter-generator (ISG). The ISG allows for functions like regenerative braking, extended coasting, and a smoother start/stop experience. The engine utilizes direct injection and a twin-scroll turbocharger with an intercooler to produce 381 horsepower at 5800-6100 rpm and 500 Nm (368.78 lb.-ft.) of torque between 1800-5000 rpm. The engine’s CAMTRONIC valve lift adjustment system optimizes performance and efficiency. Power is transmitted to all four wheels via Mercedes-Benz’s 9G-TRONIC nine-speed automatic transmission. This transmission is known for its smooth shifting and wide gear ratios, contributing to both fuel efficiency and responsive acceleration.
Driving Characteristics
The E 450 4MATIC delivers a refined and capable driving experience. The mild hybrid system provides a noticeable boost in responsiveness, particularly during acceleration. The 9G-TRONIC transmission is well-tuned, offering seamless gear changes and keeping the engine within its optimal power band. While not a dedicated performance vehicle, the E 450 4MATIC’s 4.5-second 0-60 mph acceleration time is impressive for a wagon of its size and weight. The All-Terrain’s increased ride height and all-wheel-drive system provide enhanced stability and confidence on varied road surfaces, including gravel and light off-road conditions. Compared to lower-powered E-Class All-Terrain variants, the E 450 offers a significantly more engaging and effortless driving experience.
Equipment & Trim Levels
The E 450 4MATIC comes standard with a generous array of features. Interior appointments include premium leather upholstery, wood trim, and ambient lighting. Standard technology includes the latest generation of Mercedes-Benz’s MBUX infotainment system with a large touchscreen display, a digital instrument cluster, and a comprehensive suite of driver-assistance features such as adaptive cruise control, lane-keeping assist, and automatic emergency braking. Optional extras include features like a Burmester surround sound system, a panoramic sunroof, and advanced driver-assistance packages. The All-Terrain trim also includes unique exterior styling elements, such as flared wheel arches, protective side cladding, and a chrome front grille.
Chassis & Braking
The E 450 4MATIC features a sophisticated chassis designed to balance comfort and handling. The front suspension utilizes an independent multi-link setup with a transverse stabilizer and air suspension, while the rear suspension also employs an independent multi-link design with air suspension. The air suspension allows for adjustable ride height, further enhancing the All-Terrain’s versatility. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. The standard ABS (Anti-lock braking system) and electronic stability control systems enhance safety and control.
Market Reception & Comparison
The S214 E-Class All-Terrain E 450 4MATIC has been generally well-received by automotive critics. Reviewers praise its luxurious interior, refined driving experience, and versatile capabilities. Compared to other trims in the E-Class All-Terrain lineup, the E 450 offers a significant performance advantage. While fuel economy is respectable for a vehicle of its size and power (8-8.7 l/100 km), it is slightly lower than the more fuel-efficient four-cylinder variants. However, the E 450’s superior performance and features justify the price premium for many buyers.
Legacy
The M 256 engine family, used in the E 450 4MATIC, is known for its reliability and durability. The 9G-TRONIC transmission has also proven to be a robust and dependable unit. While long-term reliability data for the S214 generation is still emerging, the E-Class has a long-standing reputation for build quality and longevity. The E 450 4MATIC is expected to hold its value well in the used car market, appealing to buyers seeking a luxurious, capable, and technologically advanced all-road wagon.
