The Mercedes-Benz C-Class Sport Coupe (CL203 chassis, post-facelift introduced in 2004) C 230 V6 represents a compelling blend of performance and style within the compact luxury coupe segment. Produced from June 2005 to April 2008, this variant occupied a mid-range position in the CL203 lineup, offering a step up in power and refinement compared to the base C 180 Kompressor models, while remaining more accessible than the higher-performance C 350. The CL203 Sport Coupe, a three-door derivative of the C-Class sedan, aimed to attract a younger demographic seeking a more dynamic driving experience and a sportier aesthetic than the traditional four-door offering.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-class |
| Generation | C-class Sport Coupe (CL203, facelift 2004) |
| Type (Engine) | C 230 V6 (204 Hp) |
| Start of production | June, 2005 |
| End of production | April, 2008 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 3 |
| Fuel consumption (urban) | 13.5-13.8 l/100 km (17.4 – 17 US mpg, 20.9 – 20.5 UK mpg, 7.4 – 7.2 km/l) |
| Fuel consumption (extra urban) | 6.8-7.1 l/100 km (34.6 – 33.1 US mpg, 41.5 – 39.8 UK mpg, 14.7 – 14.1 km/l) |
| Fuel consumption (combined) | 9.3-9.6 l/100 km (25.3 – 24.5 US mpg, 30.4 – 29.4 UK mpg, 10.8 – 10.4 km/l) |
| CO2 emissions | 222 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.4 sec |
| Acceleration 0 – 62 mph | 8.4 sec |
| Acceleration 0 – 60 mph | 8 sec |
| Maximum speed | 241 km/h (149.75 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 7.1 kg/Hp, 141.7 Hp/tonne |
| Weight-to-torque ratio | 5.9 kg/Nm, 170.1 Nm/tonne |
| Power | 204 Hp @ 6100 rpm |
| Power per litre | 81.7 Hp/l |
| Torque | 245 Nm @ 2900-5500 rpm (180.7 lb.-ft. @ 2900-5500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 272.920 |
| Engine displacement | 2496 cm3 (152.32 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 88 mm (3.46 in.) |
| Piston Stroke | 68.4 mm (2.69 in.) |
| Compression ratio | 11.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant capacity | 7 l (7.4 US qt | 6.16 UK qt) |
| Kerb Weight | 1440 kg (3174.66 lbs.) |
| Max. weight | 1985 kg (4376.18 lbs.) |
| Max load | 545 kg (1201.52 lbs.) |
| Trunk (boot) space – minimum | 310 l (10.95 cu. ft.) |
| Trunk (boot) space – maximum | 1100 l (38.85 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load without brakes | 740 kg (1631.42 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4343 mm (170.98 in.) |
| Width | 1728 mm (68.03 in.) |
| Width including mirrors | 1960 mm (77.17 in.) |
| Height | 1406 mm (55.35 in.) |
| Wheelbase | 2715 mm (106.89 in.) |
| Front track | 1505 mm (59.25 in.) |
| Rear track | 1476 mm (58.11 in.) |
| Front overhang | 788 mm (31.02 in.) |
| Rear overhang | 840 mm (33.07 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle | 10.76 m (35.3 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 6 |
| Type of gearbox | Manual transmission |
| Front suspension | Independent type McPherson, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 205/55 R 16 |
| Wheel rims size | 7 J x 16 H 2 |
Powertrain & Engine Architecture
The C 230 V6 was powered by the M272.920 engine, a 2.5-liter naturally aspirated V6. This engine, a cornerstone of Mercedes-Benz’s mid-2000s lineup, featured a 60-degree V-angle and a four-valve-per-cylinder DOHC valvetrain. The M272 utilized a multi-port fuel injection system, delivering fuel directly into the intake ports. The engine produced 204 horsepower at 6100 rpm and 245 Nm (180.7 lb-ft) of torque between 2900 and 5500 rpm. The engine’s longitudinal mounting and rear-wheel-drive configuration were typical for Mercedes-Benz models of this era. The C 230 V6 was exclusively offered with a 6-speed manual transmission, providing drivers with a more engaging driving experience compared to the automatic options available on other C-Class variants.
Driving Characteristics
The 6-speed manual transmission in the C 230 V6 provided a direct connection between the driver and the engine, enhancing the sporty feel of the coupe. While not a high-performance machine, the 2.5L V6 delivered adequate acceleration, achieving 0-60 mph in around 8 seconds. The engine’s torque curve provided usable power throughout the rev range, making it suitable for both city driving and highway cruising. The manual gearbox allowed for precise control and encouraged spirited driving, differentiating it from the more comfort-oriented automatic transmissions found in other C-Class models. The rear-wheel-drive layout contributed to balanced handling, although traction could be a concern in adverse weather conditions.
Equipment & Trim Levels
The C 230 V6 Sport Coupe typically came standard with features such as air conditioning, power windows and locks, a multi-function steering wheel, and a basic audio system. Interior upholstery was generally cloth, although leather options were available. The Sport Coupe trim also included unique exterior styling elements, such as a more aggressive front bumper, side skirts, and a rear spoiler. Optional extras included a sunroof, upgraded audio systems, navigation, and heated seats. The interior dashboard configuration was consistent with other CL203 models, featuring a relatively straightforward layout with analog gauges and a central information display.
Chassis & Braking
The CL203 Sport Coupe utilized an independent McPherson strut suspension at the front and an independent multi-link suspension at the rear. This setup provided a good balance between ride comfort and handling precision. The C 230 V6 was equipped with ventilated disc brakes at the front and solid disc brakes at the rear. Anti-lock braking system (ABS) was standard. The suspension tuning was slightly firmer than that of the C-Class sedan, reflecting the coupe’s sporty aspirations. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The C 230 V6 Sport Coupe was generally well-received by automotive critics, who praised its stylish design, engaging driving dynamics, and refined interior. However, some reviewers noted that the engine, while capable, lacked the outright performance of the C 350. Compared to the C 180 Kompressor, the C 230 V6 offered a significant power upgrade and a more satisfying driving experience. Fuel economy was reasonable for a V6 engine, but not class-leading. Reliability was generally good, although routine maintenance was essential to prevent issues with the engine’s timing chain and other components.
Legacy
The Mercedes-Benz C-Class Sport Coupe (CL203) C 230 V6 remains a desirable used car today, particularly among enthusiasts who appreciate its combination of style, performance, and affordability. The M272 V6 engine is known for its durability when properly maintained, although preventative maintenance, such as regular oil changes and timing chain inspections, is crucial. The availability of parts is generally good, and the car’s relatively simple mechanical design makes it accessible to independent mechanics. The C 230 V6 Sport Coupe represents a compelling alternative to more common compact luxury coupes, offering a unique blend of German engineering and sporty character.
