The Mercedes-Benz C-Class T-modell (S205) C 300 9G-TRONIC, produced from 2016 to 2018, represents a compelling blend of practicality and performance within the premium compact executive estate (wagon) segment. Positioned as a mid-range offering within the S205 series, it catered to buyers seeking a more spirited driving experience than the entry-level C 200, while remaining more accessible than the performance-oriented AMG variants. This model combined a turbocharged four-cylinder engine with Mercedes-Benz’s sophisticated 9G-TRONIC automatic transmission, offering a balance of efficiency and refinement. The S205 generation itself was a significant step forward for the C-Class, introducing a more luxurious interior, improved technology, and enhanced driving dynamics compared to its predecessor.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-class |
| Generation | C-class T-modell (S205) |
| Type (Engine) | C 300 (245 Hp) 9G-TRONIC |
| Start of production | 2016 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 8.4-8.8 l/100 km (28 – 26.7 US mpg) |
| Fuel consumption (extra urban) | 5.3-5.8 l/100 km (44.4 – 40.6 US mpg) |
| Fuel consumption (combined) | 6.5-6.9 l/100 km (36.2 – 34.1 US mpg) |
| CO2 emissions | 146-156 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.1 sec |
| Acceleration 0 – 62 mph | 6.1 sec |
| Acceleration 0 – 60 mph | 5.8 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6.2 kg/Hp |
| Weight-to-torque ratio | 4.1 kg/Nm |
| Power | 245 Hp @ 5500 rpm |
| Torque | 370 Nm @ 1300-4000 rpm (272.9 lb.-ft. @ 1300-4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 274.920 |
| Engine displacement | 1991 cm3 (121.5 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Compression ratio | 9.8:1 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 7 l (7.4 US qt | 6.16 UK qt) |
| Coolant | 9 l (9.51 US qt | 7.92 UK qt) |
| Kerb Weight | 1520 kg (3351.03 lbs) |
| Max. weight | 2170 kg (4784.03 lbs) |
| Max load | 650 kg (1433 lbs) |
| Trunk (boot) space – minimum | 490 l (17.3 cu. ft.) |
| Trunk (boot) space – maximum | 1510 l (53.33 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| Max. roof load | 75 kg (165.35 lbs) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs) |
| Length | 4702 mm (185.12 in) |
| Width | 1810 mm (71.26 in) |
| Width including mirrors | 2020 mm (79.53 in) |
| Height | 1457 mm (57.36 in) |
| Wheelbase | 2840 mm (111.81 in) |
| Front track | 1584 mm (62.36 in) |
| Rear track | 1566 mm (61.65 in) |
| Front overhang | 790 mm (31.1 in) |
| Rear overhang | 1072 mm (42.2 in) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle | 11.22 m (36.81 ft) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 9 gears, automatic transmission G-TRONIC |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| 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 | 225/50 R17 |
| Wheel rims size | 17 |
Powertrain & Engine Architecture
The C 300 T-modell utilized the M274.920 2.0-liter inline-four cylinder engine, a member of Mercedes-Benz’s modular engine family. This engine featured direct fuel injection and a single twin-scroll turbocharger with an intercooler. The turbocharger design aimed to reduce turbo lag and improve responsiveness. The engine produced 245 horsepower at 5500 rpm and 273 lb-ft of torque between 1300 and 4000 rpm. The 9G-TRONIC automatic transmission, a nine-speed unit, was a key component of this powertrain. It offered a wide range of gear ratios, contributing to both fuel efficiency and smooth acceleration. The transmission featured a torque converter lockup clutch to minimize slippage and improve efficiency. The engine was longitudinally mounted, driving the rear wheels.
Driving Characteristics
The C 300 9G-TRONIC offered a refined and comfortable driving experience. While not as overtly sporty as some of its rivals or the higher-performance C-Class variants, it provided ample power for everyday driving and highway cruising. The 9G-TRONIC transmission generally shifted smoothly and intelligently, although some drivers noted occasional hesitancy during kickdown maneuvers. The wide gear spread allowed the engine to operate efficiently at lower speeds, contributing to good fuel economy. Compared to the C 200, the C 300 offered noticeably stronger acceleration, particularly in overtaking situations. The difference in performance compared to the C 43 AMG was substantial, with the AMG model offering significantly more power and a more aggressive driving character. The rear-wheel drive configuration provided a balanced feel, although it could be less forgiving in slippery conditions than all-wheel drive variants.
Equipment & Trim Levels
The C 300 T-modell came standard with a generous array of features, including automatic climate control, a high-resolution infotainment display with a rotary controller, and a suite of safety systems such as ABS, ESP, and multiple airbags. Interior upholstery typically consisted of high-quality synthetic leather (Artico) or optional genuine leather. Common optional extras included a panoramic sunroof, a premium sound system, navigation, and driver assistance packages featuring adaptive cruise control and lane keeping assist. Trim levels varied slightly depending on the market, but generally offered options for upgraded interior finishes, exterior styling enhancements, and additional convenience features.
Chassis & Braking
The S205 C-Class T-modell featured an independent multi-link suspension at both the front and rear axles. This suspension design provided a good balance of ride comfort and handling precision. The C 300 typically came equipped with ventilated disc brakes on all four wheels. ABS (Anti-lock Braking System) and ESP (Electronic Stability Program) were standard safety features. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering. The suspension tuning was generally geared towards comfort, but it still provided a reasonably engaging driving experience.
Market Reception & Comparison
The C 300 T-modell was generally well-received by automotive critics. It was praised for its refined interior, comfortable ride, and efficient powertrain. The 9G-TRONIC transmission was often highlighted as a positive feature, although some reviewers noted occasional quirks. Compared to rivals such as the BMW 3 Series Touring and Audi A4 Avant, the C 300 was often seen as offering a more luxurious and comfortable experience, but perhaps lacking the ultimate driving engagement of the BMW. Fuel economy was competitive within its class, and reliability was generally considered to be good, although some owners reported minor issues with the infotainment system.
Legacy
The M274 engine, while generally reliable, has been known to exhibit some issues with the timing chain and oil leaks in higher mileage examples. The 9G-TRONIC transmission has also experienced occasional reports of software glitches and valve body issues. However, these issues are not widespread and are often addressed through software updates or component replacements. Today, the S205 C 300 T-modell represents a compelling value on the used car market, offering a blend of practicality, luxury, and performance at a relatively affordable price point. Its well-appointed interior, comfortable ride, and efficient powertrain continue to appeal to buyers seeking a premium estate car.




