Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class All-Terrain (S213, facelift 2020) |
| Type (Engine) | E 400d (330 Hp) 4MATIC 9G-TRONIC |
| Start of production | 2020 |
| End of production | 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate), Crossover |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 8.2-8.4 l/100 km (28.7 – 28 US mpg, 34.4 – 33.6 UK mpg, 12.2 – 11.9 km/l) |
| Fuel consumption (extra urban) | 5.7-5.8 l/100 km (41.3 – 40.6 US mpg, 49.6 – 48.7 UK mpg, 17.5 – 17.2 km/l) |
| Fuel consumption (combined) | 6.6-6.7 l/100 km (35.6 – 35.1 US mpg, 42.8 – 42.2 UK mpg, 15.2 – 14.9 km/l) |
| CO2 emissions | 174-177 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 5.4 sec |
| Acceleration 0 – 62 mph | 5.4 sec |
| Acceleration 0 – 60 mph | 5.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | EURO 6d-ISC-FCM |
| Weight-to-power ratio | 6 kg/Hp, 166.2 Hp/tonne |
| Weight-to-torque ratio | 2.8 kg/Nm, 352.6 Nm/tonne |
| Power | 330 Hp |
| Power per litre | 112.8 Hp/l |
| Torque | 700 Nm @ 1200-3200 rpm (516.29 lb.-ft. @ 1200-3200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 656 D 29 SCR |
| Engine displacement | 2925 cm3 (178.49 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Kerb Weight | 1985 kg (4376.18 lbs.) |
| Max. weight | 2685 kg (5919.41 lbs.) |
| Max load | 700 kg (1543.24 lbs.) |
| Trunk (boot) space – minimum | 640 l (22.6 cu. ft.) |
| Trunk (boot) space – maximum | 1820 l (64.27 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.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4947 mm (194.76 in.) |
| Width | 1861 mm (73.27 in.) |
| Height | 1497 mm (58.94 in.) |
| Wheelbase | 2939 mm (115.71 in.) |
| Front track | 1607 mm (63.27 in.) |
| Front overhang | 855 mm (33.66 in.) |
| Rear overhang | 1153 mm (45.39 in.) |
| Ride height (ground clearance) | 136 mm (5.35 in.) |
| Approach angle | 17.3° |
| Departure angle | 16.9° |
| Ramp-over (brakeover) angle | 13.5° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission G-TRONIC |
| 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 |
The Mercedes-Benz E-Class All-Terrain E 400d 4MATIC, produced from 2020 to 2023 as a facelift of the S213 generation, represents a unique blend of luxury, practicality, and all-weather capability. Positioned as a premium crossover-estate, it aimed to provide E-Class refinement with increased ground clearance and all-wheel drive for enhanced versatility. This variant, powered by a potent diesel engine and a sophisticated 9-speed automatic transmission, occupied the upper echelon of the All-Terrain lineup, offering a compelling alternative to traditional SUVs.
Powertrain & Engine Architecture
The heart of the E 400d All-Terrain is the OM 656 D 29 SCR, a 2.9-liter inline-six cylinder diesel engine. This engine represents a significant advancement in Mercedes-Benz diesel technology, featuring a sophisticated commonrail direct injection system operating at pressures up to 2,700 bar. The engine utilizes a two-stage turbocharging system with variable turbine geometry (VTG) to deliver a broad torque curve and exceptional responsiveness. The SCR (Selective Catalytic Reduction) system effectively reduces NOx emissions, ensuring compliance with stringent Euro 6d-ISC-FCM standards. The engine produces 330 horsepower and a substantial 700 Nm (516 lb-ft) of torque, available from a low 1200 rpm, providing effortless acceleration and strong pulling power. Paired with the engine is the 9G-TRONIC nine-speed automatic transmission. This transmission is known for its smooth shifts, wide gear ratios, and efficiency. The 9G-TRONIC allows the engine to operate in its optimal rev range, maximizing fuel economy and minimizing noise.
Driving Characteristics
The E 400d All-Terrain delivers a refined and composed driving experience. The abundant torque from the diesel engine provides strong acceleration in all gears, making overtaking effortless. The 9G-TRONIC transmission contributes to smooth and seamless gear changes, enhancing comfort. While not a sports car, the E 400d offers a surprisingly agile feel for its size and weight, thanks to the 4MATIC all-wheel-drive system. Compared to the E 220d All-Terrain, the E 400d offers significantly more power and torque, resulting in a noticeably quicker 0-60 mph time (5.1 seconds vs. around 7.8 seconds). The higher output also provides a more confident experience when fully loaded or towing. The All-Terrain’s raised suspension and all-wheel drive provide increased confidence on unpaved roads and in inclement weather conditions.
Equipment & Trim Levels
The E 400d All-Terrain typically came well-equipped as standard. Features included leather upholstery, heated front seats, a large infotainment screen with Mercedes-Benz’s MBUX system, and a comprehensive suite of safety features such as adaptive cruise control, lane keeping assist, and automatic emergency braking. Optional extras included air suspension (AIRMATIC), a panoramic sunroof, premium Burmester sound system, and various interior trim options. The interior design mirrored that of the standard E-Class, emphasizing luxury and sophistication. The All-Terrain specific touches included brushed aluminum trim and durable rubber floor mats.
Chassis & Braking
The E 400d All-Terrain features a robust chassis designed to handle the increased weight and demands of all-terrain driving. The suspension utilizes a multi-link setup at both the front and rear, providing a comfortable ride and good handling characteristics. The All-Terrain model boasts increased ground clearance compared to the standard E-Class wagon. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability program (ESP) and anti-lock braking system (ABS) work in conjunction to enhance safety and control.
Market Reception & Comparison
The E 400d All-Terrain was generally well-received by automotive critics. It was praised for its luxurious interior, powerful engine, and all-weather capability. The diesel engine’s fuel economy was also a significant selling point, offering a good balance between performance and efficiency. Compared to the E 220d All-Terrain, the E 400d commanded a higher price but offered a substantial performance upgrade. Against competitors like the Audi A6 allroad and Volvo V90 Cross Country, the E 400d All-Terrain stood out with its refined driving experience and advanced technology.
Legacy
The OM 656 diesel engine has proven to be a reliable and durable powerplant. While diesel engines, in general, have faced increased scrutiny in recent years, the OM 656’s advanced emissions control systems have helped it meet stringent regulations. On the used car market, the E 400d All-Terrain holds its value well, attracting buyers who appreciate its blend of luxury, performance, and practicality. Properly maintained examples are expected to provide many years of reliable service, making it a compelling choice for those seeking a versatile and refined all-weather vehicle.
