2004-2005 Mercedes-Benz C-class T-modell (S203 facelift ) C 320 V6 (218 Hp)

The Mercedes-Benz C-Class T-modell C 320 V6, produced from April 2004 to May 2005, represents a compelling blend of practicality and performance within the S203 facelifted generation of the C-Class estate (wagon). Positioned as a mid-to-upper range offering, it catered to buyers seeking a more powerful and refined alternative to the base models, while remaining a more accessible option than the high-performance AMG variants. This model combined a naturally aspirated 3.2-liter V6 engine with a six-speed manual transmission, offering a driving experience distinct from the more common four-cylinder and diesel options available in the C-Class lineup.

Technical Specifications

Brand Mercedes-Benz
Model C-Class
Generation C-Class T-modell (S203, facelift 2004)
Type (Engine) C 320 V6 (218 Hp)
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) 16.7 l/100 km (14.1 US mpg, 16.9 UK mpg, 6 km/l)
Fuel consumption (economy) – extra urban (NEDC) 8.2 l/100 km (28.7 US mpg, 34.4 UK mpg, 12.2 km/l)
Fuel consumption (economy) – combined (NEDC) 11.4 l/100 km (20.6 US mpg, 24.8 UK mpg, 8.8 km/l)
CO2 emissions (NEDC) 272 g/km
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 7.9 sec
Acceleration 0 – 62 mph 7.9 sec
Acceleration 0 – 60 mph 7.5 sec
Maximum speed 244 km/h (151.61 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 6 gears, manual 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 S203 C-Class T-modell, introduced in 2001 and facelifted in 2004, brought a more contemporary design and improved refinement to Mercedes-Benz’s compact executive estate. The C 320 V6, launched with the facelift, offered a significant step up in performance compared to the base models, utilizing a smooth and potent 3.2-liter V6 engine. This variant aimed to appeal to buyers who desired the practicality of a wagon but weren’t willing to compromise on driving enjoyment. It occupied a middle ground within the T-modell range, positioned above the 1.8 Kompressor and 2.2 CDI models, but below the more focused C55 AMG.

Powertrain & Engine Architecture

The heart of the C 320 T-modell is the M112.946 engine, a 3.2-liter naturally aspirated V6. This engine is a 60-degree V-configuration, featuring three valves per cylinder (two intake, one exhaust) and a single overhead camshaft (SOHC) per bank. The M112 engine family was known for its smooth operation and robust construction. Fuel delivery is managed by a multi-port fuel injection system, ensuring precise fuel atomization for optimal combustion. The engine produces 218 horsepower at 5700 rpm and 308 Nm (227 lb-ft) of torque between 3000 and 4800 rpm. Paired with the engine is a Getrag 219 six-speed manual transmission, providing precise shifts and allowing the driver to fully exploit the engine’s power band. This transmission was a significant upgrade over the older five-speed units found in earlier C-Class models.

Driving Characteristics

The C 320 T-modell with the manual transmission delivers a refined yet engaging driving experience. The V6 engine provides ample power for both everyday driving and spirited acceleration. The six-speed gearbox is well-matched to the engine’s characteristics, offering close ratios that keep the engine in its optimal power band. While not as overtly sporty as the C55 AMG, the C 320 offers a noticeably more responsive and enjoyable driving experience than the four-cylinder or diesel variants. The rear-wheel-drive configuration contributes to a balanced feel, although traction can be a concern in wet conditions. The suspension, tuned for comfort, provides a compliant ride without sacrificing handling precision.

Equipment & Trim Levels

The C 320 T-modell typically came well-equipped, reflecting its mid-range positioning. Standard features included automatic climate control, power windows and mirrors, a multi-function steering wheel, and a high-quality audio system. Interior upholstery was typically a combination of cloth and leatherette, with full leather options available as an upgrade. Optional extras included a sunroof, navigation system, heated seats, and upgraded audio systems. The dashboard layout was typical of the S203 facelift, featuring a more modern and integrated design compared to the pre-facelift models.

Chassis & Braking

The C 320 T-modell utilizes an independent suspension system all around. The front suspension employs a McPherson strut design with a transverse stabilizer bar, while the rear features a multi-link setup, also with a stabilizer bar. This configuration provides a good balance between ride comfort and handling. Braking duties are 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 provides adequate stopping power for everyday driving and occasional spirited use.

Market Reception & Comparison

The C 320 T-modell was generally well-received by automotive critics. It was praised for its smooth and powerful engine, comfortable ride, and practical estate body style. Compared to the 1.8 Kompressor, the C 320 offered a significant performance advantage, albeit at a higher price point. Against the 2.2 CDI, the C 320 traded fuel economy for a more refined and engaging driving experience. The C 320 offered a compelling alternative to rivals such as the Audi A4 Avant and BMW 3 Series Touring.

Legacy

The M112 V6 engine, found in the C 320 T-modell, is known for its reliability and longevity when properly maintained. While not immune to age-related issues, these engines are generally robust and capable of high mileage. Today, the C 320 T-modell represents a well-rounded and relatively affordable entry point into the world of Mercedes-Benz estates. Finding well-maintained examples can be challenging, but the combination of practicality, performance, and refinement makes it a desirable classic for enthusiasts.

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