The Mercedes-Benz C-Class Sport Coupe (CL203) facelift, specifically the C 220 CDI with 150 horsepower and an automatic transmission, was produced from April 2005 to April 2008. This variant occupied a middle ground within the CL203 range, offering a balance between performance, fuel efficiency, and affordability. It represented a key offering in the European market, where compact coupes with diesel engines were highly popular. The CL203 Sport Coupe was Mercedes-Benz’s entry into the more style-conscious coupe segment, aiming to attract a younger demographic than the traditional C-Class sedan.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-Class |
| Generation | C-Class Sport Coupe (CL203, facelift 2004) |
| Type (Engine) | C 220 CDI (150 Hp) DPF Automatic |
| Start of production | April, 2005 |
| End of production | April, 2008 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 3 |
| Fuel consumption (urban) | 9.1-9.2 l/100 km (25.8 – 25.6 US mpg) |
| Fuel consumption (extra urban) | 5.7-5.8 l/100 km (41.3 – 40.6 US mpg) |
| Fuel consumption (combined) | 6.9-7 l/100 km (34.1 – 33.6 US mpg) |
| CO2 emissions | 183-185 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.5 sec |
| Acceleration 0 – 62 mph | 10.5 sec |
| Acceleration 0 – 60 mph | 10 sec |
| Maximum speed | 218 km/h (135.46 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 9.7 kg/Hp |
| Weight-to-torque ratio | 4.3 kg/Nm |
| Power | 150 Hp @ 4200 rpm |
| Torque | 340 Nm @ 2000 rpm (250.77 lb.-ft. @ 2000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 646.963 |
| Engine displacement | 2148 cm3 (131.08 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 88 mm (3.46 in.) |
| Piston Stroke | 88.3 mm (3.48 in.) |
| Compression ratio | 18:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1460 kg (3218.75 lbs.) |
| Max. weight | 1970 kg (4343.11 lbs.) |
| Max load | 510 kg (1124.36 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 | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4343 mm (170.98 in.) |
| Width | 1728 mm (68.03 in.) |
| Width including mirrors | 1957 mm (77.05 in.) |
| Height | 1406 mm (55.35 in.) |
| Wheelbase | 2715 mm (106.89 in.) |
| Front track | 1493-1494 mm (58.78 – 58.82 in.) |
| Rear track | 1464-1478 mm (57.64 – 58.19 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 | 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 R16 |
| Wheel rims size | 7J x 16 |
Powertrain & Engine Architecture
The C 220 CDI Sport Coupe utilized the OM 646.963, a 2.1-liter inline-four cylinder diesel engine. This engine was a mainstay of the Mercedes-Benz lineup during the mid-2000s, known for its robust construction and relatively good fuel economy. The engine featured a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A turbocharger with an intercooler was employed to boost power output, allowing the engine to produce 150 horsepower at 4200 rpm and 340 Nm (250.77 lb-ft) of torque at 2000 rpm. The engine also incorporated a Diesel Particulate Filter (DPF) to reduce emissions, meeting Euro 4 standards. The automatic transmission was a five-speed unit, designed to provide smooth shifts and enhance driving comfort.
Driving Characteristics
The C 220 CDI Automatic offered a comfortable and refined driving experience. While not overtly sporty, the engine provided adequate power for everyday driving and highway cruising. The automatic transmission, while smooth, wasn’t particularly quick to downshift, resulting in a slightly less responsive feel compared to the manual transmission options. The 0-100 km/h (0-62 mph) acceleration time of 10.5 seconds was respectable for a diesel coupe of this era. The focus was more on fuel efficiency and relaxed cruising than outright performance. The rear-wheel-drive configuration provided a balanced feel, although traction could be limited in slippery conditions.
Equipment & Trim Levels
The C 220 CDI Sport Coupe typically came equipped with features such as air conditioning, power windows, central locking, and an audio system. The “Sport” designation included some aesthetic enhancements, such as sport seats, a sport steering wheel, and unique alloy wheels. Optional extras included leather upholstery, a sunroof, navigation system, and upgraded audio systems. The interior design was typical of Mercedes-Benz, with a focus on quality materials and a functional layout. The coupe’s three-door configuration meant rear seat access was somewhat restricted.
Chassis & Braking
The CL203 Sport Coupe featured an independent suspension system all around, with McPherson struts at the front and a multi-link setup at the rear. This provided a good balance between ride comfort and handling. Stabilizer bars were fitted to both axles to reduce body roll during cornering. The braking system consisted of ventilated discs at the front and solid discs at the rear, with ABS (Anti-lock Braking System) as standard. The steering was a rack-and-pinion system with hydraulic power assistance, offering precise and responsive control.
Market Reception & Comparison
The C 220 CDI Sport Coupe was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and stylish design. However, some critics noted that the automatic transmission could feel sluggish at times, and the engine lacked the outright performance of the higher-powered C 320 or C 350 models. Compared to the petrol-powered variants, the C 220 CDI offered significantly better fuel economy, making it a popular choice for drivers who prioritized efficiency. The C 220 CDI was also more affordable than the higher-spec models, appealing to a wider range of buyers.
Legacy
The OM 646 engine family, including the 2.1-liter variant found in the C 220 CDI, proved to be remarkably durable and reliable. With proper maintenance, these engines can accumulate high mileage without major issues. The CL203 Sport Coupe, while not as iconic as some other Mercedes-Benz models, remains a popular choice among enthusiasts seeking an affordable and stylish coupe. On the used car market, the C 220 CDI Automatic is often valued for its fuel efficiency and relatively low running costs. However, potential buyers should be aware of the potential for DPF issues, which can be costly to repair. Overall, the C 220 CDI Sport Coupe represents a solid and well-engineered vehicle that continues to offer a compelling blend of style, comfort, and efficiency.
