2005-2007 Mercedes-Benz C-class (W203 facelift ) C 280 V6 (231 Hp) 7G-TRONIC

Technical Specifications

Brand Mercedes-Benz
Model C-class
Generation C-class (W203, facelift 2004)
Type (Engine) C 280 V6 (231 Hp) 7G-TRONIC
Start of production June, 2005
End of production March, 2007
Powertrain Architecture Internal Combustion engine
Body type Sedan
Seats 5
Doors 4
Fuel consumption (urban) 13.3-13.6 l/100 km (17.7 – 17.3 US mpg, 21.2 – 20.8 UK mpg, 7.5 – 7.4 km/l)
Fuel consumption (extra urban) 7.2-7.5 l/100 km (32.7 – 31.4 US mpg, 39.2 – 37.7 UK mpg, 13.9 – 13.3 km/l)
Fuel consumption (combined) 9.4-9.7 l/100 km (25 – 24.2 US mpg, 30.1 – 29.1 UK mpg, 10.6 – 10.3 km/l)
CO2 emissions 225-232 g/km
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 7.2 sec
Acceleration 0 – 62 mph 7.2 sec
Acceleration 0 – 60 mph 6.8 sec
Maximum speed 250 km/h (155.34 mph) – Electronically limited
Emission standard Euro 4
Weight-to-power ratio 6.4 kg/Hp, 156.1 Hp/tonne
Weight-to-torque ratio 4.9 kg/Nm, 202.7 Nm/tonne
Power 231 Hp @ 6000 rpm
Torque 300 Nm @ 2500-5000 rpm (221.27 lb.-ft. @ 2500-5000 rpm)
Engine layout Front, Longitudinal
Engine Model/Code M 272.940
Engine displacement 2996 cm3 (182.83 cu. in.)
Number of cylinders 6
Engine configuration V-engine
Cylinder Bore 88 mm (3.46 in.)
Piston Stroke 82.1 mm (3.23 in.)
Compression ratio 11.3:1
Number of valves per cylinder 4
Fuel injection system Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Valvetrain DOHC
Engine oil capacity 8 l (8.45 US qt | 7.04 UK qt)
Coolant capacity 7 l (7.4 US qt | 6.16 UK qt)
Kerb Weight 1480 kg (3262.84 lbs.)
Max. weight 2015 kg (4442.31 lbs.)
Max load 535 kg (1179.47 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) 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 1426 mm (56.14 in.)
Wheelbase 2715 mm (106.89 in.)
Front track 1505 mm (59.25 in.)
Rear track 1476 mm (58.11 in.)
Front overhang 755 mm (29.72 in.)
Rear overhang 1056 mm (41.57 in.)
Drag coefficient (Cd) 0.27
Minimum turning circle 10.76 m (35.3 ft.)
Drivetrain Architecture Rear wheel drive
Drive wheel Rear wheel drive
Number of gears 7
Gearbox type 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
Wheel rims size 7 J x 16 H 2

The Mercedes-Benz C 280 V6, introduced as part of the W203 C-Class facelift in 2004, marked a substantial improvement in performance and refinement for the compact executive car segment. Production ran from June 2005 to March 2007, and this variant occupied a premium position within the W203 range, effectively bridging the gap between the more economical four-cylinder models and the high-performance AMG versions. It was primarily aimed at buyers who desired a blend of luxury, power, and a sophisticated driving experience. The W203 C-Class, as a whole, was designed to modernize Mercedes-Benz’s compact offerings, addressing criticisms leveled at the previous W202 generation concerning build quality and overall refinement.

Powertrain & Engine Architecture

The C 280 V6 was powered by the M272.940 engine, a 3.0-liter naturally aspirated V6. This engine represented a significant step up from the inline-four engines found in lower trim levels. The M272 boasted an all-aluminum construction, contributing to a lighter overall weight. It employed a multi-port fuel injection system and a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The engine generated 231 horsepower at 6,000 rpm and 300 Nm (221 lb-ft) of torque between 2,500 and 5,000 rpm. Complementing the engine was the 7G-TRONIC automatic transmission, a seven-speed unit that offered smoother shifts and enhanced fuel efficiency compared to earlier automatic transmissions. This transmission was a key technological advancement in the facelifted W203, enabling closer gear ratios and more efficient engine utilization.

Driving Characteristics

The C 280 V6 delivered a noticeably more refined and powerful driving experience compared to the base C-Class models. The V6 engine provided ample power for both urban driving and highway cruising, with the 7G-TRONIC transmission contributing to smooth and responsive acceleration. While not a dedicated sports car, the C 280 struck a good balance between comfort and performance. Compared to the manual transmission versions, the 7G-TRONIC offered a more relaxed driving experience, particularly in stop-and-go traffic. However, some driving enthusiasts observed that the automatic transmission could feel slightly less engaging than the manual option. The 0-60 mph time of around 6.8 seconds was respectable for its class during that period.

Equipment & Trim Levels

The C 280 V6 typically came standard with a comprehensive set of features, including leather upholstery, automatic climate control, power-adjustable front seats, and a premium audio system. Optional extras included a sunroof, a navigation system, and upgraded wheel options. The interior trim was generally well-appointed, reflecting the C 280’s position as a premium offering. The dashboard layout was characteristic of Mercedes-Benz at the time, prioritizing functionality and a relatively conservative design aesthetic.

Chassis & Braking

The C 280 V6 featured an independent suspension system, utilizing McPherson struts at the front and a multi-link setup at the rear. This configuration provided a comfortable ride while maintaining respectable handling characteristics. The braking system consisted of ventilated discs at the front and solid discs at the rear, equipped with ABS (Anti-lock Braking System). The suspension tuning prioritized comfort, aligning with the car’s overall positioning as a luxury vehicle.

Market Reception & Comparison

The C 280 V6 was generally well-received by automotive critics, who lauded its smooth engine, refined transmission, and comfortable ride quality. It was frequently compared to competitors such as the BMW 325i and Audi A4 2.8. While the BMW offered a more overtly sporty driving experience, the C 280 was often perceived as more luxurious and comfortable. Fuel economy was average for its class, with combined figures around 25-24.2 mpg. Reliability was generally good, although some owners reported occasional issues with the electronic systems.

Legacy

The W203 C 280 V6 has become a relatively desirable used car, particularly among enthusiasts who appreciate its blend of luxury, performance, and reliability. The M272 engine is known for its durability, provided regular maintenance is performed. The 7G-TRONIC transmission is also generally reliable, although it may require servicing over time. Today, these cars represent a relatively affordable entry point into Mercedes-Benz ownership, offering a taste of German engineering and luxury at a reasonable price. The combination of a smooth V6 engine, a comfortable ride, and a well-appointed interior continues to appeal to buyers seeking a refined and reliable compact executive car.

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