The Mercedes-Benz E-Class Cabriolet (A207) E 350 CGI BlueEFFICIENCY, produced from March 2010 to April 2011, represented a compelling blend of luxury, performance, and fuel efficiency within the A207 generation. Positioned as a mid-range offering in the E-Class Cabriolet lineup, it slotted between the more economical E 250 CGI and the higher-performance E 550 models. This variant aimed to provide a refined open-air driving experience without sacrificing the technological sophistication expected of a Mercedes-Benz. It was primarily marketed towards buyers seeking a stylish and comfortable convertible with adequate power for both spirited driving and relaxed cruising.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class Cabrio (A207) |
| Type (Engine) | E 350 CGI BlueEFFICIENCY V6 (292 Hp) 7G-TRONIC |
| Start of production | March, 2010 |
| End of production | April, 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 12.8-12.9 l/100 km (18.4-18.2 US mpg) |
| Fuel consumption (extra urban) | 6.5-6.6 l/100 km (36.2-35.6 US mpg) |
| Fuel consumption (combined) | 8.9-9 l/100 km (26.4-26.1 US mpg) |
| CO2 emissions | 206-208 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0-100 km/h | 6.8 sec |
| Acceleration 0-60 mph | 6.5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 5.9 kg/Hp |
| Weight-to-torque ratio | 4.7 kg/Nm |
| Power | 292 Hp @ 6400 rpm |
| Torque | 365 Nm @ 3000-5100 rpm (269.21 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 272.984 |
| Engine displacement | 3498 cm3 (213.46 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 92.9 mm (3.66 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Compression ratio | 12.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated |
| Valvetrain | DOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Kerb Weight | 1715 kg (3780.93 lbs.) |
| Max. weight | 2260 kg (4982.45 lbs.) |
| Max load | 545 kg (1201.52 lbs.) |
| Trunk (boot) space (min) | 300 l (10.59 cu. ft.) |
| Trunk (boot) space (max) | 390 l (13.77 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| Permitted trailer load (braked) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load (unbraked) | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4698 mm (184.96 in.) |
| Width | 1786 mm (70.31 in.) |
| Width including mirrors | 2015 mm (79.33 in.) |
| Height | 1398 mm (55.04 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1538 mm (60.55 in.) |
| Rear track | 1544 mm (60.79 in.) |
| Front overhang | 855 mm (33.66 in.) |
| Rear overhang | 1083 mm (42.64 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle | 11 m (36.09 ft.) |
| Drivetrain | Rear wheel drive |
| Gearbox | 7 gears, automatic transmission G-TRONIC |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 322 mm |
| Rear brakes | Ventilated discs, 300 mm |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic |
| Front tires | 235/45 R17; 235/40 R18; 235/35 R19 |
| Rear tires | 235/45 R17; 255/40 R17; 255/35 R18; 255/30 R19 |
Powertrain & Engine Architecture
At the heart of the E 350 CGI BlueEFFICIENCY Cabriolet lies the M 272.984 3.5-liter naturally aspirated V6 engine. This engine, a staple of Mercedes-Benz’s lineup during this period, features all-aluminum construction and utilizes direct fuel injection, a technology marketed as CGI (Compressed Ignition). The direct injection system, combined with variable valve timing and a high 12.2:1 compression ratio, contributed to both increased power output and improved fuel efficiency. The engine produces 292 horsepower at 6400 rpm and 365 Nm (269.21 lb-ft) of torque between 3000 and 5100 rpm. The engine’s longitudinal mounting and rear-wheel-drive configuration were standard for Mercedes-Benz models of this era.
The engine is paired with Mercedes-Benz’s 7G-TRONIC seven-speed automatic transmission. This transmission was known for its smooth shifting and ability to adapt to driving conditions. It offered a manual shift mode for drivers who preferred more control, but the automatic mode was generally well-regarded for its responsiveness and efficiency. The 7G-TRONIC’s gear ratios were optimized to provide a balance between acceleration and fuel economy.
Driving Characteristics
The E 350 CGI BlueEFFICIENCY Cabriolet offered a comfortable and refined driving experience. While not as overtly sporty as some of its competitors, the 3.5-liter V6 provided ample power for everyday driving and occasional spirited runs. Acceleration from 0 to 60 mph was achieved in approximately 6.5 seconds, and the car had a limited top speed of 250 km/h (155 mph). The 7G-TRONIC transmission contributed to smooth and seamless gear changes, enhancing the overall driving experience. Compared to the E 550 Cabriolet, the E 350 offered less outright performance, but it was more fuel-efficient and arguably more balanced in terms of handling. Compared to the four-cylinder E 250 CGI, the E 350 provided a significant boost in power and torque, resulting in noticeably quicker acceleration and more effortless cruising.
Equipment & Trim Levels
The E 350 CGI BlueEFFICIENCY Cabriolet came standard with a comprehensive list of features, including leather upholstery, automatic climate control, a premium sound system, and a power-operated soft top. Optional extras included features such as the AIRMATIC suspension system, which provided adjustable ride height and damping, as well as various driver-assistance systems like lane keeping assist and blind spot monitoring. Interior trim options allowed buyers to personalize the cabin with different wood veneers and color combinations. The standard dashboard configuration featured analog gauges with a central multi-function display.
Chassis & Braking
The A207 E-Class Cabriolet utilized a robust chassis with a multi-link suspension system at both the front and rear. This suspension design provided a comfortable ride while maintaining good handling characteristics. The front suspension featured coil springs and a transverse stabilizer bar, while the rear suspension employed coil springs and a stabilizer bar as well. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) was standard, enhancing safety and control during emergency braking situations.
Market Reception & Comparison
The E 350 CGI BlueEFFICIENCY Cabriolet was generally well-received by automotive critics. It was praised for its comfortable ride, refined interior, and efficient engine. However, some reviewers noted that it lacked the sporty character of some of its rivals. Fuel economy was considered respectable for a luxury convertible, with combined fuel consumption figures ranging from 8.9 to 9 liters per 100 kilometers. Compared to the E 250 CGI, the E 350 offered a more satisfying driving experience, while the E 550 provided more outright performance but at the expense of fuel economy.
Legacy
The M 272 engine family, including the 3.5-liter V6 used in the E 350 CGI, has proven to be relatively reliable over the long term, provided that regular maintenance is performed. Common issues include oil leaks and occasional problems with the balance shaft. The 7G-TRONIC transmission is also generally durable, but it may require fluid changes and occasional servicing. Today, the A207 E-Class Cabriolet E 350 CGI BlueEFFICIENCY represents a well-rounded and stylish option in the used luxury convertible market. Its combination of comfort, performance, and technology continues to appeal to buyers seeking a refined open-air driving experience.
