The Mercedes-Benz C 300 4MATIC, specifically the variant produced from 2019 to 2021 as part of the W205 facelift, represents a significant evolution in the compact executive car segment. This model year introduced the “EQ Boost” mild-hybrid system, enhancing both performance and fuel efficiency. Positioned as a mid-to-upper trim level within the C-Class range, the C 300 4MATIC aimed to deliver a balance of luxury, technology, and engaging driving dynamics. It served as a step up from the base C 260 models, offering increased power and standard features, while remaining more accessible than the performance-oriented AMG C 43.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-class |
| Generation | C-class (W205, facelift 2018) |
| Type | C 300 (258 Hp) EQ Boost 4MATIC 9G-TRONIC |
| Start of production | 2019 |
| End of production | 2021 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption at Low speed (WLTP) | 7.3 l/100 km (32.2 US mpg) |
| Fuel consumption at very high speed (WLTP) | 8.4 l/100 km (28 US mpg) |
| CO2 emissions (WLTP) | 166-190 g/km |
| Fuel consumption (economy) – urban | 8.4-9.3 l/100 km (28 – 25.3 US mpg) |
| Fuel consumption (economy) – extra urban | 5.2-5.7 l/100 km (45.2 – 41.3 US mpg) |
| Fuel consumption (economy) – combined | 6.4-7.0 l/100 km (36.8 – 33.6 US mpg) |
| CO2 emissions | 146-160 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.7 sec |
| Acceleration 0 – 62 mph | 5.7 sec |
| Acceleration 0 – 60 mph | 5.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d-TEMP-EVAP-ISC |
| Weight-to-power ratio | 6 kg/Hp |
| Weight-to-torque ratio | 4.2 kg/Nm |
| Electric motor power | 14 Hp |
| Power | 258 Hp |
| Torque | 370 Nm @ 1800-4000 rpm (272.9 lb.-ft. @ 1800-4000 rpm) |
| Engine Model/Code | M 264.920 |
| Engine displacement | 1991 cm3 (121.5 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Fuel injection system | Direct injection |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Coolant capacity | 8.6 l (9.09 US qt | 7.57 UK qt) |
| Kerb Weight | 1540 kg (3395.12 lbs.) |
| Max. weight | 2195 kg (4839.15 lbs.) |
| Max load | 655 kg (1444.03 lbs.) |
| Trunk (boot) space – minimum | 455 l (16.07 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4686 mm (184.49 in.) |
| Width | 1810 mm (71.26 in.) |
| Height | 1442 mm (56.77 in.) |
| Wheelbase | 2840 mm (111.81 in.) |
| Front track | 1588 mm (62.52 in.) |
| Gearbox | 9 gears, automatic transmission G-TRONIC |
Powertrain & Engine Architecture
At the heart of the C 300 4MATIC lies the M264 2.0-liter turbocharged inline-four engine. This engine is a key component of Mercedes-Benz’s modular engine family, known for its efficiency and power density. The M264 utilizes direct fuel injection and a twin-scroll turbocharger to deliver 258 horsepower and 295 lb-ft of torque. The “EQ Boost” system adds a 48-volt mild-hybrid component, integrating a belt-driven starter-generator. This system allows for functions like extended coasting, regenerative braking, and a smoother start/stop experience, contributing to improved fuel economy. The 9G-TRONIC nine-speed automatic transmission is standard, providing smooth and efficient gear changes. This transmission is known for its wide gear ratio spread, optimizing both acceleration and highway cruising.
Driving Characteristics
The C 300 4MATIC offers a refined and comfortable driving experience. The EQ Boost system provides a subtle but noticeable power assist, particularly during acceleration. While not a sports car, the C 300 delivers brisk performance, achieving 0-60 mph in around 5.9 seconds. The 9G-TRONIC transmission is generally responsive, although some drivers may find it occasionally hesitant in certain driving situations. The 4MATIC all-wheel-drive system provides excellent traction in various weather conditions, enhancing stability and confidence. Compared to the base C 260, the C 300 offers a more engaging driving experience due to its increased power output. However, it doesn’t match the outright performance of the AMG C 43, which features a more powerful engine and sport-tuned suspension.
Equipment & Trim Levels
The C 300 4MATIC came well-equipped as standard. Key features included Mercedes-Benz User Experience (MBUX) infotainment system with a 10.25-inch touchscreen display, Apple CarPlay and Android Auto integration, heated front seats, and a panoramic sunroof. Optional extras included premium leather upholstery, a Burmester surround sound system, advanced driver-assistance systems (such as adaptive cruise control and lane-keeping assist), and a head-up display. Interior trim options ranged from aluminum to wood, allowing buyers to personalize the cabin to their preferences. The standard upholstery was typically MB-Tex artificial leather, with genuine leather available as an upgrade.
Chassis & Braking
The W205 C-Class features a four-wheel independent suspension system, providing a comfortable ride and good handling characteristics. The C 300 4MATIC typically utilized a multi-link rear suspension. The braking system consisted of ventilated disc brakes on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System), Electronic Stability Program (ESP), and Brake Assist were standard safety features. The 4MATIC all-wheel-drive system employs a multi-plate clutch to distribute torque between the front and rear axles, optimizing traction and stability.
Market Reception & Comparison
The C 300 4MATIC was generally well-received by automotive critics. It was praised for its refined interior, comfortable ride, and advanced technology. The EQ Boost system was seen as a positive addition, enhancing fuel efficiency without sacrificing performance. However, some critics noted that the infotainment system could be complex to navigate and that the ride could be slightly firm on certain road surfaces. Compared to its rivals, such as the BMW 330i and Audi A4, the C 300 4MATIC offered a compelling combination of luxury, technology, and performance. Fuel economy figures were competitive, typically ranging from 23-26 mpg in mixed driving conditions.
Legacy
The 2019-2021 Mercedes-Benz C 300 4MATIC represents a transitional point in the C-Class lineage, embracing mild-hybrid technology to improve efficiency and enhance the driving experience. The M264 engine, coupled with the 9G-TRONIC transmission, has proven to be a reliable powertrain. On the used car market, these models hold their value relatively well, due to their reputation for quality and features. While long-term maintenance costs can be higher than some competitors, the C 300 4MATIC remains a desirable option for buyers seeking a luxurious and technologically advanced compact executive car.
