The Mercedes-Benz E-Class Cabriolet (A207, facelifted in 2013) E 250d 9G-TRONIC represents a compelling blend of luxury, performance, and efficiency within the mid-size convertible segment. Produced from September 2015 to March 2017, this variant occupied a significant position in the E-Class Cabriolet range, offering a diesel-powered option with a sophisticated nine-speed automatic transmission. It was part of the broader A207 generation, which benefited from a substantial refresh in 2013, bringing updated styling, improved technology, and more efficient engine options. This particular model aimed to appeal to buyers seeking a refined open-top experience without sacrificing fuel economy or everyday usability.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class Cabrio (A207, facelift 2013) |
| Type (Engine) | E 250d (204 Hp) 9G-TRONIC |
| Start of production | September, 2015 |
| End of production | March, 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 5.6-5.8 l/100 km (42 – 40.6 US mpg) |
| Fuel consumption (extra urban) | 4.2-4.5 l/100 km (56 – 52.3 US mpg) |
| Fuel consumption (combined) | 4.7-4.9 l/100 km (50 – 48 US mpg) |
| CO2 emissions | 123-130 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.7 sec |
| Acceleration 0 – 62 mph | 7.7 sec |
| Acceleration 0 – 60 mph | 7.3 sec |
| Maximum speed | 243 km/h (150.99 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.8 kg/Hp |
| Weight-to-torque ratio | 3.6 kg/Nm |
| Power | 204 Hp @ 3800 rpm |
| Torque | 500 Nm @ 1600-1800 rpm (368.78 lb.-ft. @ 1600-1800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 651.911 |
| 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 | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1790 kg (3946.27 lbs.) |
| Max. weight | 2335 kg (5147.79 lbs.) |
| Max load | 545 kg (1201.52 lbs.) |
| Trunk (boot) space – minimum | 300 l (10.59 cu. ft.) |
| Trunk (boot) space – maximum | 390 l (13.77 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| AdBlue tank | 25 l (6.6 US gal | 5.5 UK gal) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4703 mm (185.16 in.) |
| Width | 1786 mm (70.31 in.) |
| Width including mirrors | 2016 mm (79.37 in.) |
| Height | 1398 mm (55.04 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1538 mm (60.55 in.) |
| Rear track | 1541 mm (60.67 in.) |
| Front overhang | 862 mm (33.94 in.) |
| Rear overhang | 1081 mm (42.56 in.) |
| Minimum turning circle | 11.15 m (36.58 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 9 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 |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size (Front) | 235/45 R17; 235/40 R18; 235/35 R19 |
| Tires size (Rear) | 235/45 R17; 255/35 R18; 255/30 R19 |
| Wheel rims size (Front) | 7.5J x 17; 8J x 18; 8J x 19; 8.5J x 19 |
| Wheel rims size (Rear) | 7.5J x 17; 8.5J x 18; 8.5J x 19 |
Powertrain & Engine Architecture
The E 250d Cabriolet is powered by the OM651.911, a 2.1-liter inline-four diesel engine. This engine is a mainstay of the Mercedes-Benz lineup, known for its robust construction and fuel efficiency. The OM651.911 utilizes a sophisticated common-rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A bi-turbocharger setup, employing both a small and a large turbocharger, provides a broad torque curve and minimizes turbo lag. The smaller turbocharger spools up quickly at low engine speeds, while the larger turbocharger takes over at higher speeds to maintain power. The engine also features an intercooler to further enhance performance by cooling the intake air. The 9G-TRONIC automatic transmission, a nine-speed unit, is a key component of this powertrain. Its wide gear ratio spread allows for both relaxed cruising at highway speeds and responsive acceleration. The transmission is designed to optimize fuel efficiency and reduce emissions.
Driving Characteristics
The E 250d 9G-TRONIC offers a comfortable and refined driving experience. While not overtly sporty, the 204 horsepower and 368 lb-ft of torque provide ample power for everyday driving and overtaking maneuvers. The 9G-TRONIC transmission shifts smoothly and efficiently, contributing to a relaxed driving feel. Compared to the more powerful E 400 Cabriolet, the E 250d prioritizes fuel economy and torque delivery over outright acceleration. The gear ratios are tuned for efficiency, meaning the engine doesn’t need to rev as high to maintain speed. Compared to a manual transmission equipped E-Class, the 9G-TRONIC offers greater convenience and ease of use, particularly in urban traffic. However, some drivers may prefer the more direct control offered by a manual gearbox.
Equipment & Trim Levels
The E 250d Cabriolet typically came well-equipped, reflecting its position as a premium vehicle. Standard features included leather upholstery, automatic climate control, a multi-function steering wheel, and a high-quality audio system. Optional extras included features such as the AIRMATIC suspension system, which provided a more comfortable ride, and the COMAND infotainment system with navigation. Interior trim options varied, allowing buyers to personalize the cabin to their preferences. The Cabriolet also featured a fully automatic retractable soft top, which could be operated at speeds up to 40 km/h (25 mph).
Chassis & Braking
The E-Class Cabriolet utilizes a sophisticated suspension system designed to provide a comfortable ride and good handling. The front suspension features coil springs and an independent multi-link setup with a transverse stabilizer bar. The rear suspension also employs an independent multi-link design with a stabilizer bar. Braking duties are handled by ventilated discs at the front and solid discs at the rear. The car is equipped with ABS (Anti-lock Braking System) as standard, enhancing safety and stability during braking. The steering system is a rack-and-pinion type with electric power assistance.
Market Reception & Comparison
The E 250d Cabriolet was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. Compared to other trims in the E-Class Cabriolet lineup, the E 250d offered a more affordable entry point while still providing a luxurious experience. Its fuel economy was significantly better than that of the more powerful E 400, making it a popular choice for drivers who prioritize efficiency. However, some critics noted that the E 250d lacked the outright performance of its higher-powered siblings.
Legacy
The OM651 engine family, including the 2.1-liter diesel used in the E 250d, has proven to be remarkably durable and reliable. With proper maintenance, these engines can accumulate high mileage without major issues. The 9G-TRONIC transmission has also demonstrated good long-term reliability. On the used car market, the E 250d Cabriolet represents a good value proposition, offering a luxurious and well-equipped convertible at a relatively affordable price. However, potential buyers should be aware of the potential maintenance costs associated with a diesel engine, such as diesel particulate filter (DPF) maintenance and AdBlue refills.
