2011-2013 Mercedes-Benz E-class Cabrio (A207) E 220 CDI BlueEFFICIENCY (170 Hp) Start & Stop

The Mercedes-Benz E-Class Cabriolet (A207) E 220 CDI BlueEFFICIENCY, produced from April 2011 to March 2013, represented a compelling blend of luxury, fuel efficiency, and open-air driving enjoyment within the broader E-Class Cabrio range. Positioned as a mid-range offering, it slotted below the more powerful E 350 models and above the base E 200 CDI, appealing to buyers seeking a refined convertible experience without the higher price tag or fuel consumption of its larger-engined siblings. This variant was primarily marketed in Europe and other regions where diesel engines were favored, offering a sophisticated alternative to gasoline-powered convertibles.

Technical Specifications

INTRODUCTION

The A207 E-Class Cabriolet, launched in 2010, brought a modern take on open-top luxury to the Mercedes-Benz lineup. The E 220 CDI BlueEFFICIENCY variant, introduced in 2011, was a key component of this strategy, offering a diesel-powered option that prioritized fuel economy and torque. Built on the W207 platform, the A207 shared its underpinnings with the E-Class sedan and coupe, but featured a fully automatic fabric soft top and a focus on providing a comfortable and refined driving experience. The “BlueEFFICIENCY” designation indicated the inclusion of various fuel-saving technologies, such as start-stop functionality and optimized aerodynamics.

Powertrain & Engine Architecture

At the heart of the E 220 CDI BlueEFFICIENCY lay the OM651.911 2.1-liter inline-four diesel engine. This engine was a cornerstone of Mercedes-Benz’s diesel offerings, known for its robust construction and efficiency. It featured common-rail direct injection, delivering fuel at extremely high pressure for optimized combustion. A bi-turbocharger system, utilizing a small and a large turbocharger, provided both immediate response at low engine speeds and sustained power throughout the rev range. The engine also incorporated an intercooler to further enhance performance. The standard transmission was a 6-speed manual, although a 5-speed automatic transmission (7G-TRONIC was available as an option, and was a popular choice for buyers prioritizing convenience. The automatic transmission offered smooth shifts and adaptive shift patterns, adjusting to the driver’s style and road conditions.

Driving Characteristics

The E 220 CDI BlueEFFICIENCY Cabriolet offered a relaxed and refined driving experience. While not overtly sporty, the 170 horsepower and 400 Nm (295 lb-ft) of torque provided ample power for comfortable cruising and effortless overtaking. The engine’s peak torque was available from a low 1400 rpm, making it particularly well-suited for everyday driving. The 6-speed manual transmission allowed for precise control, while the optional automatic provided seamless gear changes. Compared to the more powerful E 350 Cabriolet, the E 220 CDI offered significantly better fuel economy, but at the expense of outright acceleration. The suspension, tuned for comfort, absorbed bumps and imperfections in the road effectively, providing a smooth ride even with the top down.

Equipment & Trim Levels

The E 220 CDI BlueEFFICIENCY Cabriolet came standard with a generous array of features, including leather upholstery, automatic climate control, a multi-function steering wheel, and a high-quality audio system. Optional extras included features such as the AIRCAP system (which reduced wind turbulence in the cabin at higher speeds), the AIRSCARF system (which provided warm air around the neck and shoulders of occupants), and a premium sound system. Interior trim options included various wood veneers and aluminum accents. The dashboard layout was typical of Mercedes-Benz, with a focus on elegance and functionality.

Chassis & Braking

The A207 Cabriolet utilized a robust chassis with a multi-link suspension system at both the front and rear. This suspension design provided excellent ride comfort and handling characteristics. The front suspension featured coil springs and a transverse stabilizer bar, while the rear suspension employed coil springs and a stabilizer bar. The braking system consisted of ventilated discs at the front and solid discs at the rear, providing ample stopping power. Anti-lock braking system (ABS) was standard, enhancing safety and control. The steering was a hydraulic power-assisted rack and pinion system, offering precise and responsive steering feel.

Market Reception & Comparison

The E 220 CDI BlueEFFICIENCY Cabriolet was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. However, some reviewers noted that the engine lacked the outright performance of its larger-engined counterparts. Compared to the E 350 Cabriolet, the E 220 CDI offered significantly better fuel economy (around 30-40% improvement in real-world driving) but took approximately 1.5-2 seconds longer to accelerate from 0 to 60 mph. The E 220 CDI also represented a more affordable entry point into the E-Class Cabriolet range, making it an attractive option for buyers seeking a luxurious convertible without the premium price tag.

Legacy

The OM651 engine family, including the version used in the E 220 CDI, has proven to be remarkably durable and reliable. With proper maintenance, these engines can easily exceed 200,000 miles. The A207 E-Class Cabriolet, in general, has maintained a good reputation for build quality and reliability. On the used car market, the E 220 CDI BlueEFFICIENCY Cabriolet represents a compelling value proposition, offering a luxurious and fuel-efficient open-top driving experience at a relatively affordable price. However, potential buyers should be aware of the potential for diesel particulate filter (DPF) issues, particularly if the vehicle has primarily been used for short trips. Regular servicing and the use of high-quality diesel fuel are essential for maintaining the long-term health of this powertrain.