The Mercedes-Benz C 240 V6 Automatic, produced from April 2004 to June 2005, represents a mid-range offering within the W203 C-Class facelift series. This variant, positioned between the entry-level C 180 Kompressor and the performance-oriented C 320, aimed to provide a balance of refinement, comfort, and adequate performance for the North American and European markets. The W203 facelift, introduced in 2004, brought significant aesthetic and mechanical updates to the C-Class, addressing criticisms leveled at the pre-facelift models regarding interior quality and overall refinement. The C 240 V6 Automatic specifically targeted buyers seeking a smooth, comfortable driving experience with the prestige of the Mercedes-Benz badge.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-class |
| Generation | C-class (W203, facelift 2004) |
| Type (Engine) | C 240 V6 (170 Hp) Automatic |
| Start of production | April, 2004 |
| End of production | June, 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban (NEDC) | 14.2 l/100 km (16.6 US mpg, 19.9 UK mpg, 7 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 7.6 l/100 km (30.9 US mpg, 37.2 UK mpg, 13.2 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 10.1 l/100 km (23.3 US mpg, 28 UK mpg, 9.9 km/l) |
| CO2 emissions (NEDC) | 243 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.5 sec |
| Acceleration 0 – 62 mph | 9.5 sec |
| Acceleration 0 – 60 mph | 9 sec |
| Maximum speed | 232 km/h (144.16 mph) |
| Power | 170 Hp @ 5500 rpm |
| Torque | 240 Nm @ 4500 rpm (177.01 lb.-ft. @ 4500 rpm) |
| Maximum engine speed | 6000 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 112.912 |
| Engine displacement | 2597 cm3 (158.48 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 89.9 mm (3.54 in.) |
| Piston Stroke | 68.2 mm (2.69 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 3 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 10.5 l (11.1 US qt | 9.24 UK qt) |
| Kerb Weight | 1460 kg (3218.75 lbs.) |
| Max. weight | 2015 kg (4442.31 lbs.) |
| Max load | 555 kg (1223.57 lbs.) |
| Trunk (boot) space – minimum | 455 l (16.07 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%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4526 mm (178.19 in.) |
| Width | 1728 mm (68.03 in.) |
| Width including mirrors | 1980 mm (77.95 in.) |
| Height | 1427 mm (56.18 in.) |
| Wheelbase | 2715 mm (106.89 in.) |
| Front track | 1493 mm (58.78 in.) |
| Rear (Back) track | 1464 mm (57.64 in.) |
| Drag coefficient (Cd) | 0.27 |
| 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, 300 mm |
| Rear brakes | Disc, 290 mm |
| 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 |
Powertrain & Engine Architecture
The C 240 V6 was powered by the M112.912 engine, a 2.6-liter naturally aspirated V6. This engine featured a single overhead camshaft (SOHC) design per cylinder bank and utilized multi-port fuel injection. The M112 engine family was known for its smooth operation and relatively high specific output. The 24 valves (3 per cylinder) and a compression ratio of 10.5:1 contributed to its 170 horsepower at 5500 rpm and 240 Nm (177 lb-ft) of torque at 4500 rpm. The engine’s longitudinal mounting allowed for a rear-wheel-drive configuration, a hallmark of traditional Mercedes-Benz sedans. Paired with the engine was a 5-speed automatic transmission, offering smooth shifts but lacking the responsiveness of a manual gearbox. This transmission was designed for comfort and ease of use, prioritizing a relaxed driving experience over sporty performance.
Driving Characteristics
The C 240 V6 Automatic delivered a comfortable and refined driving experience. Acceleration from 0-60 mph took approximately 9 seconds, which was adequate for everyday driving but not particularly sporty. The automatic transmission, while smooth, could feel somewhat sluggish during quick acceleration or overtaking maneuvers. The gear ratios were tuned for fuel efficiency and comfort rather than outright performance. Compared to the C 320 V6, the C 240 offered less power and acceleration, but it was more fuel-efficient. Against the smaller, turbocharged C 180 Kompressor, the C 240 provided a more substantial feel and a broader powerband, making it more relaxed on the highway.
Equipment & Trim Levels
The C 240 V6 Automatic typically came standard with features such as automatic climate control, power windows and locks, a multi-function steering wheel, and a basic audio system. Upholstery was generally cloth, with leather options available as an upgrade. Common optional extras included a sunroof, upgraded audio systems, navigation, and heated seats. The interior design of the facelifted W203 was a significant improvement over the pre-facelift models, with higher-quality materials and a more modern aesthetic. Trim levels varied slightly by market, but generally, the C 240 V6 Automatic represented a well-equipped mid-range offering.
Chassis & Braking
The W203 C-Class featured an independent suspension system, with McPherson struts at the front and a multi-link setup at the rear. This provided a comfortable ride and decent handling characteristics. The C 240 V6 typically came equipped with ventilated disc brakes at the front and solid discs at the rear. Anti-lock braking system (ABS) was standard. The suspension was tuned for comfort, prioritizing ride quality over aggressive handling. Stabilizer bars were fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The C 240 V6 Automatic was generally well-received by critics as a comfortable and refined mid-size sedan. However, some reviewers noted that the performance was not particularly exciting, especially compared to some of its European rivals. Fuel economy was considered average for its class. Compared to the C 320, the C 240 offered a more affordable entry point into the W203 range, while still providing a luxurious and comfortable driving experience. Its reliability was generally good, although some owners reported issues with the automatic transmission over the long term.
Legacy
The M112 engine family, including the 2.6-liter V6 found in the C 240, is generally considered a reliable and durable powerplant. While not known for exceptional fuel economy, the engine has proven to be relatively trouble-free with proper maintenance. In the used car market, the C 240 V6 Automatic represents a relatively affordable entry point into Mercedes-Benz ownership. However, potential buyers should be aware of the possibility of transmission issues and ensure that the vehicle has been well-maintained. The W203 C-Class, as a whole, is remembered as a significant step forward for Mercedes-Benz in terms of build quality and refinement, and the C 240 V6 Automatic remains a popular choice for those seeking a comfortable and reliable German sedan.
