The Mercedes-Benz C-Class T-modell C 320 V6 Automatic, produced from April 2004 to May 2005, represents a compelling blend of practicality and performance within the S203 facelift generation of the C-Class estate. Positioned as a mid-to-upper range offering, it catered to buyers seeking a more powerful and refined wagon experience than the base models, but without the outright performance focus of the C55 AMG. This variant combined a naturally aspirated 3.2-liter V6 engine with a five-speed automatic transmission, offering a comfortable and capable driving experience for families and those requiring substantial cargo space.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-Class |
| Generation | C-Class T-modell (S203, facelift 2004) |
| Type (Engine) | C 320 V6 (218 Hp) Automatic |
| Start of production | April, 2004 |
| End of production | May, 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban (NEDC) | 15.9 l/100 km (14.8 US mpg, 17.8 UK mpg, 6.3 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 8.1 l/100 km (29 US mpg, 34.9 UK mpg, 12.3 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 10.8 l/100 km (21.8 US mpg, 26.2 UK mpg, 9.3 km/l) |
| CO2 emissions (NEDC) | 249 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.1 sec |
| Acceleration 0 – 62 mph | 8.1 sec |
| Acceleration 0 – 60 mph | 7.7 sec |
| Maximum speed | 242 km/h (150.37 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 7 kg/Hp, 142.5 Hp/tonne |
| Weight-to-torque ratio | 5 kg/Nm, 201.3 Nm/tonne |
| Power | 218 Hp @ 5700 rpm |
| Power per litre | 68.1 Hp/l |
| Torque | 308 Nm @ 3000-4800 rpm (227.17 lb.-ft. @ 3000-4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 112.946 |
| Engine displacement | 3199 cm3 (195.21 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 89.9 mm (3.54 in.) |
| Piston Stroke | 84 mm (3.31 in.) |
| Compression ratio | 10:1 |
| 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 | 1530 kg (3373.07 lbs.) |
| Max. weight | 2130 kg (4695.85 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space – minimum | 470 l (16.6 cu. ft.) |
| Trunk (boot) space – maximum | 1384 l (48.88 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.) |
| Length | 4541 mm (178.78 in.) |
| Width | 1728 mm (68.03 in.) |
| Width including mirrors | 1980 mm (77.95 in.) |
| Height | 1466 mm (57.72 in.) |
| Wheelbase | 2715 mm (106.89 in.) |
| Front track | 1493 mm (58.78 in.) |
| Rear (Back) track | 1464 mm (57.64 in.) |
| Front overhang | 755 mm (29.72 in.) |
| Rear overhang | 1071 mm (42.17 in.) |
| Drag coefficient (Cd) | 0.31 |
| 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 |
Powertrain & Engine Architecture
The heart of the C 320 T-modell is the M112.946 3.2-liter V6 engine. This engine, a staple of Mercedes-Benz’s mid-size offerings during the early 2000s, is a naturally aspirated, 60-degree V-engine featuring three valves per cylinder (two intake, one exhaust) and a single overhead camshaft (SOHC) design. The engine utilizes a multi-port fuel injection system, delivering fuel directly into the intake ports. This configuration prioritized smooth power delivery and refinement over outright peak horsepower. The engine’s robust construction and relatively simple design contributed to its reputation for reliability.
The five-speed automatic transmission (typically the 722.6) was specifically calibrated to complement the V6’s torque characteristics. While not offering the rapid shifts of modern transmissions, it provided smooth and predictable gear changes, enhancing the car’s comfort and ease of driving. The transmission featured a torque converter for smooth launches and low-speed maneuverability.
Driving Characteristics
The C 320 T-modell Automatic offered a distinctly different driving experience compared to its four-cylinder counterparts or the higher-performance C55 AMG. The V6 engine delivered ample torque throughout the rev range, making everyday driving effortless. Acceleration to 60 mph took approximately 7.7 seconds, respectable for the era and body style. The automatic transmission, while smooth, did slightly diminish the engine’s responsiveness compared to a manual transmission. The gear ratios were tuned for comfortable cruising, prioritizing fuel efficiency and reducing engine noise at highway speeds. The rear-wheel-drive configuration provided a balanced feel, although it lacked the all-weather capability of all-wheel-drive variants available in some markets.
Equipment & Trim Levels
The C 320 T-modell typically came well-equipped as standard. Interior features included leather upholstery, automatic climate control, power-adjustable front seats, and a multi-function steering wheel. Optional extras included a premium sound system, sunroof, navigation system, and parking sensors. The dashboard layout was typical of Mercedes-Benz at the time, emphasizing a luxurious and understated aesthetic. Trim levels varied slightly depending on the market, but generally, the C 320 represented a step up in terms of interior materials and features compared to the base C-Class models.
Chassis & Braking
The S203 C-Class utilized an independent suspension system all around. The front featured a McPherson strut setup, while the rear employed a multi-link suspension. This configuration provided a good balance between ride comfort and handling. The C 320 typically featured slightly thicker stabilizer bars compared to the base models to reduce body roll during cornering. Braking duties were handled by ventilated discs at the front and solid discs at the rear, equipped with ABS (Anti-lock Braking System) as standard. The braking system provided adequate stopping power for the vehicle’s weight and performance.
Market Reception & Comparison
The C 320 T-modell was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and spacious interior. However, some reviewers noted that the automatic transmission could feel slightly sluggish, and the car lacked the sporty handling of some of its competitors. Compared to the C 230 Kompressor, the C 320 offered significantly more power and torque, but at a higher price point. The C 55 AMG, while offering substantially more performance, came with a significantly higher price tag and a firmer ride. Fuel economy was reasonable for a V6 engine of this size, averaging around 21.8 US mpg in combined driving.
Legacy
The M112 V6 engine, found in the C 320 T-modell, has proven to be a durable and reliable powerplant. With proper maintenance, these engines can accumulate high mileage without major issues. The five-speed automatic transmission is also generally reliable, although it may require servicing at higher mileages. Today, the C 320 T-modell represents a compelling value in the used car market, offering a blend of practicality, comfort, and performance at an affordable price. Its understated elegance and robust engineering continue to appeal to enthusiasts seeking a well-built and refined European wagon.
