The Mercedes-Benz C-Class Sport Coupe (CL203) facelift, specifically the C 230 V6 model with the 7G-TRONIC automatic transmission, was produced from June 2005 to April 2008. This variant occupied a mid-range position within the CL203 lineup, offering a balance between performance and comfort. It represented a more sporting alternative to the traditional C-Class sedan, appealing to buyers seeking a stylish and engaging driving experience. The CL203 generation, introduced in 2000, was Mercedes-Benz’s entry-level model, and the Sport Coupe version, with its three-door configuration, aimed to attract a younger demographic.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-class |
| Generation | C-class Sport Coupe (CL203, facelift 2004) |
| Type (Engine) | C 230 V6 (204 Hp) 7G-TRONIC |
| 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) | 13.2-13.5 l/100 km (17.8 – 17.4 US mpg, 21.4 – 20.9 UK mpg, 7.6 – 7.4 km/l) |
| Fuel consumption (extra urban) | 7.1-7.4 l/100 km (33.1 – 31.8 US mpg, 39.8 – 38.2 UK mpg, 14.1 – 13.5 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 | 8.9 sec |
| Acceleration 0 – 62 mph | 8.9 sec |
| Acceleration 0 – 60 mph | 8.5 sec |
| Maximum speed | 234 km/h (145.4 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 7.2 kg/Hp, 139.7 Hp/tonne |
| Weight-to-torque ratio | 6 kg/Nm, 167.8 Nm/tonne |
| Power | 204 Hp @ 6100 rpm |
| 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 | 1460 kg (3218.75 lbs.) |
| Max. weight | 1985 kg (4376.18 lbs.) |
| Max load | 525 kg (1157.43 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 and type of gearbox | 7 gears, automatic 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 featured a 60-degree V-angle and utilized a multi-port fuel injection system. The engine produced 204 horsepower at 6100 rpm and 245 Nm (180.7 lb-ft) of torque between 2900 and 5500 rpm. The M272 engine family was known for its smooth operation and relatively high power output for its displacement. It employed a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The 7G-TRONIC automatic transmission, a seven-speed unit, was a key feature of this variant. This transmission offered smoother shifts and improved fuel efficiency compared to older automatic gearboxes. The transmission’s gear ratios were optimized for both performance and economy, providing a balance between acceleration and cruising comfort.
Driving Characteristics
The C 230 V6 with the 7G-TRONIC transmission offered a refined and comfortable driving experience. While not as overtly sporty as some of its competitors, it provided adequate acceleration, achieving 0-60 mph in approximately 8.5 seconds. The 7G-TRONIC transmission contributed to smooth gear changes, minimizing disruptions during acceleration. Compared to the manual transmission versions of the C-Class, the automatic offered less driver involvement but greater ease of use, particularly in urban traffic. The V6 engine delivered a linear power delivery, making it predictable and easy to control. However, it lacked the low-end torque of the diesel variants, such as the C 220 CDI, and the higher horsepower of the C 320.
Equipment & Trim Levels
The C 230 V6 Sport Coupe typically came equipped with features such as automatic climate control, power windows and locks, and a multi-function steering wheel. Standard interior upholstery was typically a combination of cloth and leatherette. Optional extras included leather seats, a sunroof, a premium sound system, and parking sensors. The Sport Coupe trim also featured unique styling elements, such as sport seats and aluminum interior trim, differentiating it from the standard C-Class models.
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. 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 was tuned to provide a slightly firmer ride than the standard C-Class sedan, reflecting the Sport Coupe’s more sporting aspirations.
Market Reception & Comparison
The C 230 V6 Sport Coupe was generally well-received by automotive critics. It was praised for its stylish design, comfortable interior, and refined driving experience. However, some reviewers noted that it lacked the outright performance of some of its rivals. Compared to the C 220 CDI, the C 230 V6 offered less fuel economy but more power. The C 320, with its larger engine, provided significantly more performance but at a higher price point. The C 230 V6 appealed to buyers who prioritized comfort and style over ultimate performance.
Legacy
The M272 engine family, including the 2.5-liter V6 used in the C 230, is generally considered to be a reliable unit, although regular maintenance is crucial. Common issues include oil leaks and occasional problems with the balance shaft. The 7G-TRONIC transmission is also generally reliable, but it can be susceptible to issues if not properly maintained. Today, the C 230 V6 Sport Coupe represents an affordable entry point into the Mercedes-Benz brand. Well-maintained examples are still relatively common on the used car market, offering a stylish and comfortable driving experience for those seeking a classic Mercedes-Benz coupe.
