The Mercedes-Benz C-Class Sport Coupe (CL203) facelift C 230 Kompressor Automatic, produced from April 2004 to June 2005, represented a compelling blend of performance and practicality within the compact luxury coupe segment. Positioned as a mid-range offering in the CL203 lineup, it aimed to deliver a more engaging driving experience than the base C180 Kompressor while remaining more accessible than the higher-performance C320 or C55 AMG models. This variant was primarily marketed in Europe and other international markets, offering a sporty alternative to traditional sedans.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-class |
| Generation | C-class Sport Coupe (CL203, facelift 2004) |
| Type (Engine) | C 230 Kompressor (192 Hp) Automatic |
| Start of production | April, 2004 |
| End of production | June, 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 3 |
| Fuel consumption (economy) – urban (NEDC) | 12.8 l/100 km (18.4 US mpg, 22.1 UK mpg, 7.8 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 8.9 l/100 km (26.4 US mpg, 31.7 UK mpg, 11.2 km/l) |
| CO2 emissions (NEDC) | 214 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.2 sec |
| Acceleration 0 – 62 mph | 8.2 sec |
| Acceleration 0 – 60 mph | 7.8 sec |
| Maximum speed | 236 km/h (146.64 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 7.3 kg/Hp, 137.1 Hp/tonne |
| Weight-to-torque ratio | 5.4 kg/Nm, 185.7 Nm/tonne |
| Power | 192 Hp @ 5800 rpm |
| Power per litre | 106.9 Hp/l |
| Torque | 260 Nm @ 3500-4000 rpm (191.77 lb.-ft. @ 3500-4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 271.948 |
| Engine displacement | 1796 cm3 (109.6 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 85 mm (3.35 in.) |
| Compression ratio | 8.7:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Supercharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Coolant | 8 l (8.45 US qt | 7.04 UK qt) |
| Kerb Weight | 1400 kg (3086.47 lbs.) |
| Max. weight | 1945 kg (4287.99 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.) |
| 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 | 1493 mm (58.78 in.) |
| Rear (Back) track | 1464 mm (57.64 in.) |
| Front overhang | 788 mm (31.02 in.) |
| Rear overhang | 840 mm (33.07 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 10.76 m (35.3 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 5 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 V |
| Wheel rims size | 7 J x 16 H 2 |
INTRODUCTION
The CL203 C-Class Sport Coupe, introduced in 2001 and facelifted in 2004, was Mercedes-Benz’s entry into the affordable compact coupe market. The facelift brought revised styling, improved interior materials, and updated engine options. The C 230 Kompressor Automatic, utilizing the M271 engine, was a key variant, offering a balance between performance and fuel efficiency. It slotted between the entry-level C180K and the more powerful C320, appealing to buyers seeking a sporty yet comfortable driving experience. The “Kompressor” designation indicated the presence of a mechanically driven supercharger, enhancing low-end torque.
Powertrain & Engine Architecture
At the heart of the C 230 Kompressor lay the M271.948 1.8-liter inline-four cylinder engine. This engine was a significant departure from previous Mercedes-Benz four-cylinder designs, featuring all-aluminum construction and a supercharger. The supercharger, an Eaton Roots-type unit, provided instant boost, mitigating turbo lag and delivering a more responsive throttle feel. Fuel delivery was handled by a multi-port fuel injection system. The engine employed a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing breathing and contributing to its power output. The engine produced 192 horsepower at 5800 rpm and 260 Nm (191.77 lb-ft) of torque between 3500 and 4000 rpm. The engine was paired with a five-speed automatic transmission, offering smooth shifts and convenient operation. This transmission was a conventional torque-converter automatic, prioritizing comfort over outright performance.
Driving Characteristics
The C 230 Kompressor Automatic offered a comfortable and refined driving experience. The supercharger provided ample low-end torque, making it easy to navigate city streets and execute passing maneuvers. While not as overtly sporty as the manual transmission versions or the C320, the automatic provided a relaxed and effortless driving style. The five-speed automatic transmission, while smooth, wasn’t particularly quick-shifting, and its gear ratios were geared towards fuel efficiency rather than maximizing acceleration. Acceleration from 0-60 mph took approximately 7.8 seconds, and the car had a top speed of 146.64 mph. The rear-wheel-drive configuration contributed to balanced handling, although it lacked the all-weather capability of all-wheel-drive systems offered on other C-Class models.
Equipment & Trim Levels
The C 230 Kompressor Automatic typically came equipped with a respectable level of standard features. These included automatic climate control, power windows and locks, a multi-function steering wheel, and a basic audio system. Upholstery was typically cloth, although leather was available as an option. Optional extras included a sunroof, upgraded audio systems, navigation, and sport seats. The interior design was typical of Mercedes-Benz at the time, emphasizing quality materials and a functional layout. The facelifted models featured subtle interior enhancements, including revised trim pieces and improved switchgear.
Chassis & Braking
The CL203 Sport Coupe utilized an independent suspension system at all four corners. The front suspension employed a McPherson strut design, while the rear featured a multi-link setup. Both ends were equipped with a transverse stabilizer bar to reduce body roll. Braking duties were handled by ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) was standard. The suspension tuning was geared towards comfort, providing a relatively compliant ride. The chassis was relatively lightweight, contributing to the car’s agility.
Market Reception & Comparison
The C 230 Kompressor Automatic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and stylish design. However, some critics noted that the automatic transmission wasn’t as engaging as the manual option, and the interior, while well-built, lacked the cutting-edge design of some competitors. Compared to the C180K, the C 230 offered significantly more performance. Compared to the C320, it was more affordable and fuel-efficient, albeit with less power. Fuel economy was respectable for its class, averaging around 26.4 US mpg in combined driving.
Legacy
The M271 engine, in its various iterations, proved to be a relatively reliable powerplant. However, some owners have reported issues with the supercharger clutch and the balance shaft, which could lead to engine noise. The five-speed automatic transmission is generally durable, but regular fluid changes are essential for longevity. Today, the CL203 C 230 Kompressor Automatic represents an affordable entry point into Mercedes-Benz ownership. Well-maintained examples are still relatively common on the used car market, offering a stylish and comfortable coupe experience at a reasonable price. Its blend of performance, practicality, and Mercedes-Benz refinement continues to appeal to enthusiasts seeking a classic German coupe.





