The Mercedes-Benz C-Class (W204) facelift C 180 CDI, produced from 2011 to 2014, represented an entry point into the popular C-Class range, particularly in European markets. Positioned as a fuel-efficient and relatively affordable option, it catered to buyers prioritizing economy and practicality over outright performance. This variant utilized a diesel engine paired with an automatic transmission, offering a blend of comfort and efficiency within the compact executive segment. It was a key component of the W204’s mid-life refresh, aiming to broaden the appeal of the C-Class to a wider customer base.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | C-class |
| Generation | C-class (W204, facelift 2011) |
| Type (Engine) | C 180 CDI (120 Hp) |
| Start of production | 2011 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 5.9-6.3 l/100 km (39.9 – 37.3 US mpg, 47.9 – 44.8 UK mpg, 16.9 – 15.9 km/l) |
| Fuel consumption (extra urban) | 4.1-4.7 l/100 km (57.4 – 50 US mpg, 68.9 – 60.1 UK mpg, 24.4 – 21.3 km/l) |
| Fuel consumption (combined) | 4.8-5.3 l/100 km (49 – 44.4 US mpg, 58.9 – 53.3 UK mpg, 20.8 – 18.9 km/l) |
| CO2 emissions | 125-139 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.5 sec |
| Acceleration 0 – 62 mph | 10.5 sec |
| Acceleration 0 – 60 mph | 10 sec |
| Maximum speed | 208 km/h (129.25 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 12.4 kg/Hp, 80.5 Hp/tonne |
| Weight-to-torque ratio | 5 kg/Nm, 201.3 Nm/tonne |
| Power | 120 Hp @ 2800-4600 rpm |
| Power per litre | 56 Hp/l |
| Torque | 300 Nm @ 1400-2800 rpm (221.27 lb.-ft. @ 1400-2800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 651.913 |
| Engine displacement | 2143 cm3 (130.77 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 99 mm (3.9 in.) |
| Compression ratio | 16.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1490 kg (3284.89 lbs.) |
| Max. weight | 2080 kg (4585.62 lbs.) |
| Max load | 590 kg (1300.73 lbs.) |
| Trunk (boot) space – minimum | 475 l (16.77 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 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 | 4591 mm (180.75 in.) |
| Width | 1770 mm (69.69 in.) |
| Width including mirrors | 2008 mm (79.06 in.) |
| Height | 1447 mm (56.97 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1549 mm (60.98 in.) |
| Rear (Back) track | 1552 mm (61.1 in.) |
| Front overhang | 775 mm (30.51 in.) |
| Rear overhang | 1056 mm (41.57 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle (turning diameter) | 10.84 m (35.56 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 | 195/60 R16; 205/55 R16; 225/45 R17 |
| Wheel rims size | 6J x 16; 7J x 16; 7.5J x 17 |
INTRODUCTION
The W204 C-Class, launched in 2007, received a significant facelift in 2011, bringing with it revised styling, updated technology, and a refined engine lineup. The C 180 CDI, powered by the OM651.913 2.1-liter four-cylinder diesel engine producing 120 horsepower, was a key part of this update. It aimed to provide a balance between fuel efficiency and acceptable performance for everyday driving. This model was primarily sold in Europe and other markets where diesel engines were favored due to their fuel economy and lower running costs. The C 180 CDI slotted into the C-Class range as the entry-level diesel option, below the more powerful C 220 CDI and C 250 CDI models.
Powertrain & Engine Architecture
The heart of the C 180 CDI is the OM651.913 2.1-liter inline-four cylinder diesel engine. This engine is a common rail direct injection diesel, meaning fuel is injected directly into the combustion chamber at extremely high pressure. This contributes to improved combustion efficiency and reduced emissions. The engine utilizes a turbocharger with an intercooler to boost power output. The intercooler cools the compressed air from the turbocharger, increasing its density and further enhancing performance. The engine also features a DOHC (Double Overhead Camshaft) valvetrain with four valves per cylinder, optimizing airflow for improved power and efficiency. The C 180 CDI was typically paired with a 5-speed automatic transmission (7G-TRONIC was also available as an option), chosen for its smooth operation and convenience. This transmission was designed to work seamlessly with the engine’s torque characteristics, providing comfortable and efficient gear changes.
Driving Characteristics
The C 180 CDI Automatic offered a comfortable, if not particularly exhilarating, driving experience. With 120 horsepower and 300 Nm (221 lb-ft) of torque, acceleration from 0-100 km/h (0-62 mph) took around 10.5 seconds. While this wasn’t a sports car by any means, the engine provided sufficient power for everyday driving situations, including highway cruising and overtaking. The automatic transmission contributed to a relaxed driving experience, automatically selecting the appropriate gear for the driving conditions. Compared to the more powerful C 220 CDI or C 250 CDI, the C 180 CDI felt noticeably slower, particularly during acceleration. However, it offered superior fuel economy, making it an attractive option for drivers prioritizing efficiency. The gear ratios were tuned for fuel economy, meaning the engine often operated at lower RPMs during cruising, further contributing to its efficiency.
Equipment & Trim Levels
The C 180 CDI typically came with a reasonable level of standard equipment. This included features such as air conditioning, power windows, central locking, and an audio system. Interior upholstery was generally cloth, although leather options were available as upgrades. The dashboard layout was typical of Mercedes-Benz at the time, with a focus on quality materials and a functional design. Optional extras included features such as a sunroof, navigation system, upgraded audio system, and parking sensors. Trim levels varied depending on the market, but generally, the C 180 CDI was positioned as a mid-range offering, with options to upgrade to more luxurious trims.
Chassis & Braking
The W204 C-Class featured a well-engineered chassis designed to provide a comfortable and controlled ride. The front suspension utilized a McPherson strut design, while the rear suspension employed a multi-link setup. Both suspensions were equipped with stabilizer bars to reduce body roll during cornering. The C 180 CDI typically came equipped with ventilated disc brakes at the front and solid disc brakes at the rear. ABS (Anti-lock Braking System) was standard, providing enhanced braking performance and stability. The suspension tuning was geared towards comfort, providing a smooth ride over most road surfaces. However, it still offered decent handling characteristics, allowing for confident cornering.
Market Reception & Comparison
The C 180 CDI was generally well-received by critics as a practical and fuel-efficient option within the C-Class range. It was praised for its low running costs and comfortable ride. However, some critics noted its relatively modest performance compared to its more powerful siblings. Compared to the C 220 CDI, the C 180 CDI offered significantly better fuel economy but lacked the same level of performance. The C 220 CDI was often considered a more well-rounded option for drivers who wanted a balance between efficiency and performance. In terms of reliability, the OM651 engine proved to be generally robust, although regular maintenance was essential to ensure long-term reliability.
Legacy
The C 180 CDI (W204) remains a relatively common sight on used car markets today. The OM651 engine is known for its durability and relatively low maintenance costs, making it a popular choice for budget-conscious buyers. However, potential buyers should be aware of the potential for diesel particulate filter (DPF) issues, particularly if the vehicle has been primarily used for short journeys. Overall, the C 180 CDI represents a solid and reliable entry point into the Mercedes-Benz C-Class ownership experience, offering a blend of comfort, efficiency, and practicality.




