The Mercedes-Benz C-Class T-modell (S204) C 180 CGI BlueEFFICIENCY represents a specific variant within the second generation of the C-Class estate (wagon) produced between 2010 and 2011. Positioned as an entry-level offering in the T-modell lineup, it aimed to provide a balance of fuel efficiency and practicality for buyers seeking a premium wagon experience. This model was part of the broader S204 series, which itself was based on the W204 C-Class platform, and catered primarily to the European market where wagons remain a popular body style. The “BlueEFFICIENCY” designation indicated Mercedes-Benz’s efforts to improve fuel economy through various technological enhancements.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-Class |
| Generation | C-Class T-modell (S204) |
| Type (Engine) | C 180 CGI BlueEFFICIENCY (156 Hp) |
| Start of production | 2010 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 9.7-10.7 l/100 km (24.2 – 22 US mpg, 29.1 – 26.4 UK mpg, 10.3 – 9.3 km/l) |
| Fuel consumption (extra urban) | 5.5-6.4 l/100 km (42.8 – 36.8 US mpg, 51.4 – 44.1 UK mpg, 18.2 – 15.6 km/l) |
| Fuel consumption (combined) | 7-7.9 l/100 km (33.6 – 29.8 US mpg, 40.4 – 35.8 UK mpg, 14.3 – 12.7 km/l) |
| CO2 emissions | 164-185 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.2 sec |
| Acceleration 0 – 62 mph | 9.2 sec |
| Acceleration 0 – 60 mph | 8.7 sec |
| Maximum speed | 218 km/h (135.46 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9.4 kg/Hp, 106.1 Hp/tonne |
| Weight-to-torque ratio | 5.9 kg/Nm, 170.1 Nm/tonne |
| Power | 156 Hp @ 5000 rpm |
| Power per litre | 86.9 Hp/l |
| Torque | 250 Nm @ 1600-4200 rpm (184.39 lb.-ft. @ 1600-4200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 271.820 |
| Engine displacement | 1796 cm3 (109.6 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 85 mm (3.35 in.) |
| Compression ratio | 9.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Kerb Weight | 1470 kg (3240.8 lbs.) |
| Max. weight | 2085 kg (4596.64 lbs.) |
| Max load | 615 kg (1355.84 lbs.) |
| Trunk (boot) space – minimum | 485 l (17.13 cu. ft.) |
| Trunk (boot) space – maximum | 1500 l (52.97 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4596 mm (180.94 in.) |
| Width | 1770 mm (69.69 in.) |
| Width including mirrors | 2009 mm (79.09 in.) |
| Height | 1459 mm (57.44 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1541 mm (60.67 in.) |
| Rear track | 1544 mm (60.79 in.) |
| Front overhang | 765 mm (30.12 in.) |
| Rear overhang | 1071 mm (42.17 in.) |
| Minimum turning circle | 10.84 m (35.56 ft.) |
| Drivetrain | 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 R16 |
| Wheel rims size | 7J x 16 |
Powertrain & Engine Architecture
The C 180 CGI BlueEFFICIENCY was powered by the M271.820 1.8-liter inline-four cylinder engine. This engine featured direct fuel injection (CGI – Charged Gasoline Injection) and a turbocharger with an intercooler. The direct injection system allowed for more precise fuel delivery, improving both power and efficiency. The engine produced 156 horsepower at 5000 rpm and 250 Nm (184 lb-ft) of torque between 1600 and 4200 rpm. The engine utilized a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The engine was mounted longitudinally in the front of the vehicle, driving the rear wheels. The transmission was a 6-speed manual gearbox, although a 7G-TRONIC automatic transmission was also available as an option. The automatic transmission offered smoother shifts and enhanced convenience, but at the expense of some fuel economy.
Driving Characteristics
The C 180 CGI BlueEFFICIENCY, equipped with the manual transmission, offered adequate performance for everyday driving. Acceleration from 0 to 100 km/h (0-62 mph) took approximately 9.2 seconds. While not particularly sporty, the turbocharger provided a noticeable boost in power, making overtaking maneuvers manageable. Compared to the more powerful C 250 or C 350 models, the C 180 felt less responsive, particularly at higher speeds. The automatic transmission version slightly impacted acceleration, adding a fraction of a second to the 0-60 mph time. The gear ratios were tuned for fuel efficiency rather than outright performance. The rear-wheel-drive configuration provided a balanced driving experience, although it could be less forgiving in slippery conditions compared to all-wheel-drive variants.
Equipment & Trim Levels
The C 180 CGI BlueEFFICIENCY typically came standard with features such as air conditioning, power windows, central locking, and an audio system. Interior upholstery was generally cloth, with leather options available at extra cost. Standard dashboard configuration included analog gauges and a multi-function steering wheel. Optional extras included a sunroof, navigation system, upgraded audio system, and parking sensors. The “BlueEFFICIENCY” package included features like low rolling resistance tires and optimized aerodynamics to improve fuel economy. Trim levels were relatively simple, with options primarily focused on adding comfort and convenience features.
Chassis & Braking
The S204 C-Class T-modell featured an independent suspension system. The front suspension utilized McPherson struts with a transverse stabilizer bar, while the rear suspension employed a multi-link setup, also with a stabilizer bar. This configuration provided a comfortable ride and good handling characteristics. The C 180 CGI BlueEFFICIENCY was equipped with ventilated disc brakes at the front and solid disc brakes at the rear. Anti-lock Braking System (ABS) was standard. The suspension was tuned to prioritize comfort over sporty handling, making it well-suited for long-distance driving.
Market Reception & Comparison
The C 180 CGI BlueEFFICIENCY was generally well-received by critics as a practical and fuel-efficient option within the C-Class range. It was praised for its comfortable ride and reasonable performance. However, some reviewers noted that the engine lacked the punch of the more powerful variants. Compared to the C 200 CDI diesel, the C 180 offered slightly less torque but a more refined driving experience. Fuel economy was competitive, achieving around 7-7.9 liters per 100 kilometers (33.6-29.8 US mpg) in combined driving. Reliability was generally good, although some owners reported minor issues with the turbocharger and fuel injection system.
Legacy
The M271 engine family, including the 1.8-liter CGI variant, proved to be relatively reliable, although regular maintenance is crucial. The direct injection system requires clean fuel and timely spark plug replacements to prevent issues. Today, the C 180 CGI BlueEFFICIENCY T-modell represents an affordable entry point into the Mercedes-Benz estate car market. Used examples are readily available, and with proper maintenance, these vehicles can provide years of reliable service. The combination of practicality, fuel efficiency, and the Mercedes-Benz badge continues to make it an appealing option for buyers seeking a premium wagon.
