The Mercedes-Benz C-Class T-modell (S206) C 300 4MATIC, equipped with EQ Boost and the 9G-TRONIC automatic transmission, represents a significant iteration in the long-running C-Class lineage. Introduced in 2021, this variant occupies a mid-to-upper position within the S206 range, blending performance, efficiency, and practicality in a premium station wagon package. It builds upon the W205 generation, offering enhanced technology and a refined driving experience. The C 300 4MATIC is designed to appeal to buyers seeking a versatile vehicle capable of both comfortable long-distance travel and dynamic handling.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-class |
| Generation | C-class T-modell (S206) |
| Type | C 300 (258 Hp) EQ Boost 4MATIC 9G-TRONIC |
| Start of production | 2021 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 7.3-8.1 l/100 km (32.2 – 29 US mpg) |
| CO2 emissions (WLTP) | 165-185 g/km |
| Fuel consumption (urban – NEDC) | 10.1-10.4 l/100 km (23.3 – 22.6 US mpg) |
| Fuel consumption (extra urban – NEDC) | 5.5-5.9 l/100 km (42.8 – 39.9 US mpg) |
| Fuel consumption (combined – NEDC) | 7.2-7.5 l/100 km (32.7 – 31.4 US mpg) |
| CO2 emissions (NEDC) | 165-173 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.2 sec |
| Acceleration 0 – 62 mph | 6.2 sec |
| Acceleration 0 – 60 mph | 5.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d-ISC-FCM |
| Weight-to-power ratio | 6.6 kg/Hp |
| Weight-to-torque ratio | 4.3 kg/Nm |
| Gross battery capacity | 0.9 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 20 Hp |
| Electric motor Torque | 200 Nm (147.51 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 254.920 |
| Engine displacement | 1999 cm3 (121.99 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Coolant capacity | 12 l (12.68 US qt | 10.56 UK qt) |
| Kerb Weight | 1715 kg (3780.93 lbs.) |
| Max. weight | 2395 kg (5280.07 lbs.) |
| Max load | 680 kg (1499.14 lbs.) |
| Trunk (boot) space – minimum | 490 l (17.3 cu. ft.) |
| Trunk (boot) space – maximum | 1510 l (53.33 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load (braked) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load (unbraked) | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4751 mm (187.05 in.) |
| Width | 1820 mm (71.65 in.) |
| Width including mirrors | 2033 mm (80.04 in.) |
| Height | 1454 mm (57.24 in.) |
| Wheelbase | 2865 mm (112.8 in.) |
| Front track | 1582-1601 mm (62.28 – 63.03 in.) |
| Rear track | 1594-1613 mm (62.76 – 63.5 in.) |
| Front overhang | 800 mm (31.5 in.) |
| Rear overhang | 1086 mm (42.76 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle | 11.45 m (37.57 ft.) |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Gearbox | 9 gears, automatic transmission G-TRONIC |
Powertrain & Engine Architecture
The C 300 4MATIC utilizes the M 254.920 2.0-liter inline-four cylinder engine, a core component of Mercedes-Benz’s modular engine family. This engine benefits from direct injection and a twin-scroll turbocharger, delivering 258 horsepower and 400 Nm (295 lb-ft) of torque. Crucially, this engine incorporates EQ Boost, a 48-volt mild hybrid system. This system adds an electric motor producing 20 hp and 200 Nm (147.51 lb-ft) of torque, providing assistance during acceleration and enabling features like coasting with engine shut-off. The 9G-TRONIC nine-speed automatic transmission is standard, offering smooth and efficient gear changes. The transmission is designed to work seamlessly with the EQ Boost system, optimizing power delivery and fuel economy. The engine’s layout is front-mounted and longitudinal, contributing to balanced weight distribution.
Driving Characteristics
The C 300 4MATIC offers a refined and capable driving experience. The EQ Boost system provides a noticeable surge of power during acceleration, enhancing responsiveness. While not as overtly sporty as some of its competitors, the C 300 delivers ample power for everyday driving and confident highway passing. The 9G-TRONIC transmission is well-tuned, providing smooth shifts and contributing to a comfortable ride. The 4MATIC all-wheel-drive system ensures excellent traction in various weather conditions. Compared to lower-powered C-Class variants, the C 300 offers a more engaging driving experience, while remaining more fuel-efficient and less expensive than the higher-performance AMG models.
Equipment & Trim Levels
The C 300 4MATIC typically comes well-equipped as standard. Common features include Mercedes-Benz User Experience (MBUX) infotainment system with a touchscreen display, premium upholstery, automatic climate control, and a comprehensive suite of safety features. Optional extras often include a panoramic sunroof, upgraded audio systems, advanced driver-assistance systems (such as adaptive cruise control and lane-keeping assist), and various interior trim options. The interior design emphasizes luxury and technology, with high-quality materials and a modern aesthetic.
Chassis & Braking
The S206 C-Class T-modell utilizes a sophisticated chassis design. The front suspension features a multi-link setup with coil springs and a transverse stabilizer bar, while the rear suspension employs an independent multi-link spring suspension, also with a stabilizer bar. This configuration provides a good balance between ride comfort and handling precision. The C 300 4MATIC is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control are standard safety features.
Market Reception & Comparison
The C 300 4MATIC was generally well-received by automotive critics. It was praised for its refined driving experience, comfortable interior, and advanced technology. Fuel economy was considered competitive for its class, and the EQ Boost system was lauded for its contribution to both performance and efficiency. Compared to rivals like the BMW 3 Series Touring and Audi A4 Avant, the C 300 4MATIC offered a compelling combination of luxury, practicality, and technology. Some critics noted that the ride could be slightly firm on certain road surfaces, but overall, the C 300 4MATIC was considered a strong contender in the premium station wagon segment.
Legacy
The M 254 engine family, including the version found in the C 300 4MATIC, has proven to be relatively reliable. The 9G-TRONIC transmission is also known for its durability. As a used vehicle, the C 300 4MATIC holds its value well, thanks to the Mercedes-Benz brand reputation and the vehicle’s desirable features. Regular maintenance, including oil changes and adherence to the manufacturer’s recommended service intervals, is crucial for ensuring long-term reliability. The integration of mild hybrid technology positions this variant as a forward-thinking design, offering a glimpse into the future of powertrain development.
