2016-2018 Mercedes-Benz C-class Cabriolet (A205) C 220d (170 Hp)

The Mercedes-Benz C-Class Cabriolet (A205), specifically the C 220d variant producing 170 horsepower, was a key offering in the premium compact convertible segment from 2016 to 2018. Positioned as a mid-range option within the A205 C-Class Cabriolet lineup, it aimed to balance fuel efficiency, respectable performance, and the open-air driving experience characteristic of a convertible. This model represented Mercedes-Benz’s continued commitment to offering a diverse range of options within its popular C-Class family, catering to buyers seeking a more economical diesel-powered alternative to the gasoline-fueled C 300 Cabriolet.

Technical Specifications

Brand Mercedes-Benz
Model C-class
Generation C-class Cabriolet (A205)
Type (Engine) C 220d (170 Hp)
Start of production 2016
End of production 2018
Powertrain Architecture Internal Combustion engine
Body type Cabriolet
Seats 4
Doors 2
Fuel consumption (urban) 5.7-5.4 l/100 km (41.3 – 43.6 US mpg)
Fuel consumption (extra urban) 4.3-3.9 l/100 km (54.7 – 60.3 US mpg)
Fuel consumption (combined) 4.8-4.5 l/100 km (49 – 52.3 US mpg)
CO2 emissions 126-116 g/km
Fuel Type Diesel
Acceleration 0 – 100 km/h 8.3 sec
Acceleration 0 – 62 mph 8.3 sec
Acceleration 0 – 60 mph 7.9 sec
Emission standard Euro 6
Weight-to-power ratio 10.2 kg/Hp
Power per litre 79.3 Hp/l
Torque 400 Nm @ 1400-2800 rpm (295.02 lb.-ft. @ 1400-2800 rpm)
Engine layout Front, Longitudinal
Engine Model/Code OM 651.921
Engine displacement 2143 cm3 (130.77 cu. in.)
Number of cylinders 4
Engine configuration Inline
Compression ratio 16.2:1
Fuel injection system Diesel Commonrail
Engine aspiration BiTurbo, Intercooler
Engine oil capacity 6 l (6.34 US qt | 5.28 UK qt)
Kerb Weight 1735 kg (3825.02 lbs.)
Max. weight 2215 kg (4883.24 lbs.)
Max load 480 kg (1058.22 lbs.)
Trunk (boot) space – minimum 285 l (10.06 cu. ft.)
Trunk (boot) space – maximum 360 l (12.71 cu. ft.)
Fuel tank capacity 41 l (10.83 US gal | 9.02 UK gal)
Permitted trailer load with brakes (12%) 1800 kg (3968.32 lbs.)
Permitted trailer load without brakes 750 kg (1653.47 lbs.)
Length 4686 mm (184.49 in.)
Width 1810 mm (71.26 in.)
Width including mirrors 2016 mm (79.37 in.)
Height 1409 mm (55.47 in.)
Wheelbase 2840 mm (111.81 in.)
Front track 1563 mm (61.54 in.)
Rear (Back) track 1546 mm (60.87 in.)
Front overhang 790 mm (31.1 in.)
Rear overhang 1056 mm (41.57 in.)
Drag coefficient (Cd) 0.28
Minimum turning circle 11.22 m (36.81 ft.)
Drivetrain Architecture Rear wheel drive
Number of gears and type of gearbox 6 gears, manual transmission
Front suspension Independent multi-link suspension
Rear suspension Independent multi-link suspension
Front brakes Ventilated discs
Rear brakes Disc
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Electric Steering
Tires size 225/50 R17
Wheel rims size 17

INTRODUCTION

The A205 C-Class Cabriolet, launched in 2016, represented the fourth generation of Mercedes-Benz’s popular compact convertible. The C 220d variant, powered by a 2.1-liter turbocharged diesel engine, was introduced as a fuel-efficient and torque-rich option within the range. Built on the MRA (Modular Rear-wheel Architecture) platform, shared with the C-Class sedan and coupe, the Cabriolet offered a blend of luxury, performance, and open-top motoring. The C 220d specifically targeted buyers who prioritized economy and relaxed cruising over outright speed, making it a popular choice in European markets where diesel fuel was prevalent and taxation favored lower emissions.

Powertrain & Engine Architecture

The heart of the C 220d Cabriolet is the OM651.921, a 2.143-liter inline-four cylinder diesel engine. This engine utilizes a sophisticated common-rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A twin-turbocharger setup – one large and one small turbo – provides both strong low-end torque and sustained power throughout the rev range. The smaller turbocharger spools up quickly to eliminate turbo lag, while the larger turbo contributes to higher horsepower at higher engine speeds. The engine also features an intercooler to further enhance performance by cooling the intake air. The C 220d was typically paired with a 6-speed manual transmission, although a 9G-TRONIC 9-speed automatic transmission was also available as an option. The automatic transmission offered smoother shifts and improved fuel efficiency, but at the expense of some driver engagement.

Driving Characteristics

The C 220d Cabriolet, with its 170 horsepower and 400 Nm (295 lb-ft) of torque, provided a comfortable and refined driving experience. Acceleration from 0 to 60 mph took approximately 7.9 seconds, which was adequate for everyday driving but not particularly sporty. The engine’s strong low-end torque made it easy to navigate city streets and provided effortless overtaking on the highway. The 6-speed manual transmission, while engaging, had relatively long throws. The optional 9-speed automatic offered smoother transitions and optimized gear selection for fuel economy. Compared to the more powerful C 300 Cabriolet, the C 220d felt less eager to rev, but its superior fuel economy and relaxed cruising character appealed to a different type of driver.

Equipment & Trim Levels

The C 220d Cabriolet came standard with a generous array of features, including automatic climate control, a multi-function steering wheel, and a high-resolution infotainment system with a central display screen. Interior upholstery typically consisted of Artico leather, a high-quality synthetic leather. Optional extras included genuine leather upholstery, heated seats, a premium sound system, and advanced driver-assistance systems such as lane keeping assist and adaptive cruise control. Trim levels varied depending on the market, but generally included ‘Sport’ and ‘AMG Line’ packages, which added more aggressive styling cues and sport-tuned suspension components.

Chassis & Braking

The A205 C-Class Cabriolet utilized an independent multi-link suspension system at both the front and rear axles, providing a comfortable ride and precise handling. The suspension was tuned to balance comfort and agility, offering a good compromise for both city driving and spirited backroad excursions. Braking duties were handled by ventilated disc brakes at the front and solid disc brakes at the rear. Anti-lock braking system (ABS) and electronic stability control (ESC) were standard features, enhancing safety and stability. The Cabriolet’s chassis was reinforced compared to the coupe and sedan to compensate for the lack of a fixed roof, ensuring structural rigidity and minimizing body flex.

Market Reception & Comparison

The C 220d Cabriolet was generally well-received by automotive critics, who praised its fuel efficiency, comfortable ride, and refined interior. However, some reviewers noted that the engine lacked the outright performance of its gasoline-powered counterparts. Compared to the C 300 Cabriolet, the C 220d offered significantly better fuel economy – around 49-52 mpg combined – but at the cost of approximately 2 seconds in 0-60 mph acceleration. In terms of reliability, the OM651 engine family had a generally good reputation, although diesel particulate filter (DPF) issues could occur with frequent short trips.

Legacy

The Mercedes-Benz C 220d Cabriolet (A205) remains a popular choice in the used car market, particularly for buyers seeking a stylish and economical convertible. The OM651 diesel engine, while requiring regular maintenance, is known for its durability and longevity. The A205 generation C-Class Cabriolet established itself as a strong competitor in the premium compact convertible segment, offering a compelling blend of luxury, performance, and fuel efficiency. Today, well-maintained examples of the C 220d Cabriolet continue to provide a rewarding open-top driving experience.

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