The Mercedes-Benz E-Class W214 E 350 4MATIC, introduced in 2023, represents the latest iteration of Mercedes-Benz’s mid-size executive car. This variant, equipped with a 2.0-liter turbocharged inline-four engine and a 48-volt mild hybrid system, occupies a central position within the W214 lineup, offering a balance between performance, efficiency, and luxury. It’s designed to appeal to buyers seeking a refined driving experience with all-wheel drive capability and modern technology. The E 350 4MATIC utilizes the 9G-TRONIC nine-speed automatic transmission and is positioned above the base E 300 models but below the more powerful E 450 and AMG variants.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class (W214) |
| Type | E 350 (255 Hp) Mild Hybrid 4MATIC 9G-TRONIC |
| Start of production | 2023 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 9.8 l/100 km (24 US mpg) |
| Fuel consumption (extra urban) | 7.1 l/100 km (33.1 US mpg) |
| Fuel consumption (combined) | 8.7 l/100 km (27 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 6.1 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Emission standard | SULEV20 |
| Weight-to-power ratio | 7.5 kg/Hp |
| Weight-to-torque ratio | 4.8 kg/Nm |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 23 Hp |
| Electric motor Torque | 205 Nm (151.2 lb.-ft.) |
| Engine Power | 255 Hp @ 5800 rpm |
| Engine Torque | 400 Nm @ 2000-3200 rpm (295.02 lb.-ft. @ 2000-3200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 254 |
| Engine displacement | 1999 cm3 (121.99 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92.4 mm (3.64 in.) |
| Compression ratio | 10:1 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | DOHC, CAMTRONIC |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Coolant capacity | 14 l (14.79 US qt | 12.32 UK qt) |
| Kerb Weight | 1900 kg (4188.78 lbs.) |
| Trunk (boot) space | 540 l (19.07 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| Length | 4949 mm (194.84 in.) |
| Width | 1880 mm (74.02 in.) |
| Width including mirrors | 2065 mm (81.3 in.) |
| Height | 1468 mm (57.8 in.) |
| Wheelbase | 2961 mm (116.57 in.) |
| Front track | 1628 mm (64.09 in.) |
| Rear track | 1643 mm (64.69 in.) |
| Drag coefficient (Cd) | 0.23 |
| Minimum turning circle | 12 m (39.37 ft.) |
| Drivetrain Architecture | All wheel drive (4×4) |
| Number of gears | 9 |
| Gearbox type | Automatic transmission G-TRONIC |
INTRODUCTION
The W214 E-Class, launched in 2023, builds upon the established reputation of its predecessors, offering a blend of luxury, technology, and performance. The E 350 4MATIC variant specifically caters to drivers who desire a sophisticated sedan with all-weather capability. It represents a significant step forward in terms of digitalization and driver assistance systems compared to the previous W213 generation. The 4MATIC all-wheel-drive system is a key feature, providing enhanced traction and stability, particularly in inclement weather conditions. This model is a core offering in the E-Class range, designed to appeal to a broad customer base.
Powertrain & Engine Architecture
At the heart of the E 350 4MATIC lies the M 254 engine, a 2.0-liter inline-four cylinder gasoline engine. This engine benefits from a single twin-scroll turbocharger and direct fuel injection, delivering a power output of 255 horsepower at 5800 rpm and 400 Nm (295 lb-ft) of torque between 2000 and 3200 rpm. The engine incorporates CAMTRONIC variable valve timing for optimized efficiency and performance. Crucially, the E 350 utilizes a 48-volt mild hybrid system. This system features an integrated starter-generator (ISG) that provides a power boost of up to 23 horsepower and 205 Nm (151 lb-ft) of torque, assisting the engine during acceleration and enabling smoother start/stop functionality. The 9G-TRONIC nine-speed automatic transmission is standard, offering smooth and efficient gear changes. This transmission is known for its wide gear ratio spread, contributing to both fuel economy and responsive acceleration.
Driving Characteristics
The E 350 4MATIC delivers a refined and comfortable driving experience. The mild hybrid system provides a noticeable boost in responsiveness, particularly during initial acceleration. The 9G-TRONIC transmission is well-tuned, offering seamless shifts and keeping the engine within its optimal power band. While not as overtly sporty as the AMG-tuned models, the E 350 provides ample power for everyday driving and highway cruising. The 4MATIC all-wheel-drive system inspires confidence in various road conditions, providing enhanced grip and stability. Compared to the base E 300, the E 350 offers a more substantial power increase, resulting in quicker acceleration and a more relaxed driving experience, especially when fully loaded. It doesn’t possess the raw performance of the E 450, but offers a compelling balance of power and efficiency.
Equipment & Trim Levels
The E 350 4MATIC comes standard with a comprehensive suite of features, including Mercedes-Benz User Experience (MBUX) infotainment system with a large touchscreen display, premium upholstery, automatic climate control, and a range of driver assistance systems such as adaptive cruise control and lane keeping assist. Optional extras include a Burmester surround sound system, panoramic sunroof, ventilated and massaging front seats, and advanced driver assistance packages. Interior trim options typically include wood, aluminum, and carbon fiber accents. The standard upholstery is usually a high-quality leatherette, with genuine leather available as an upgrade.
Chassis & Braking
The W214 E-Class utilizes a sophisticated chassis design featuring an independent multi-link suspension at both the front and rear. The suspension is tuned for comfort and stability, providing a smooth ride even on uneven surfaces. Air suspension is available as an option, further enhancing ride quality and allowing for adjustable ride height. The E 350 4MATIC is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS), electronic stability control (ESC), and traction control are standard safety features. Steering is via a power-assisted rack and pinion system, offering precise and responsive handling.
Market Reception & Comparison
The W214 E 350 4MATIC has been generally well-received by automotive critics, praised for its refined driving experience, luxurious interior, and advanced technology. Fuel economy is competitive for its class, with the mild hybrid system contributing to improved efficiency. Compared to the E 300, the E 350 offers a noticeable performance upgrade without significantly compromising fuel economy. Against rivals such as the BMW 5 Series and Audi A6, the E 350 4MATIC holds its own, offering a compelling combination of luxury, technology, and performance. Reliability is expected to be in line with other Mercedes-Benz models, with the M 254 engine proving to be a robust and dependable unit.
Legacy
The M 254 engine, coupled with the 9G-TRONIC transmission and 4MATIC all-wheel drive, represents a significant advancement in Mercedes-Benz’s powertrain technology. The mild hybrid system enhances both performance and efficiency, while the 4MATIC system provides all-weather capability. As the W214 E-Class ages, the E 350 4MATIC is expected to maintain strong resale value due to its desirable combination of features and performance. The long-term reliability of this powertrain is anticipated to be good, making it a potentially attractive option in the used car market.
