The Audi A5 Cabriolet 40 TDI (204 hp) Mild Hybrid S tronic, produced from August 2020 to 2024, represents a significant iteration of Audi’s popular open-top luxury vehicle. Falling within the F5 facelift generation of the A5 Cabriolet, this variant aimed to balance performance, fuel efficiency, and modern technology. It occupied a mid-range position in the A5 Cabriolet lineup, offering a diesel-powered alternative to the more performance-focused gasoline engines and serving as a more economical option compared to higher-output TDI models. The 40 TDI utilized Audi’s mild hybrid system to enhance fuel economy and reduce emissions, aligning with increasingly stringent European regulations.
Technical Specifications
| Brand | Audi |
| Model | A5 |
| Generation | A5 Cabriolet (F5, facelift 2019) |
| Type (Engine) | 40 TDI (204 Hp) Mild Hybrid S tronic |
| Start of production | August, 2020 |
| End of production | 2024 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Combined fuel consumption (WLTP) | 5.3-6 l/100 km (44.4 – 39.2 US mpg) |
| CO2 emissions (WLTP) | 140-158 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.9 sec |
| Acceleration 0 – 62 mph | 7.9 sec |
| Acceleration 0 – 60 mph | 7.5 sec |
| Maximum speed | 243 km/h (150.99 mph) |
| Emission standard | Euro 6d-ISC-FCM |
| Kerb Weight | 1690 kg (3725.81 lbs) |
| Max. weight | 2180 kg (4806.08 lbs) |
| Trunk (boot) space – minimum | 370 l (13.07 cu. ft) |
| Fuel tank capacity | 40 l (10.57 US gal) |
| Engine Model/Code | EA288 evo / DTPA |
| Engine displacement | 1968 cm3 (120.09 cu. in) |
| Power | 204 Hp @ 3800-4200 rpm |
| Torque | 400 Nm @ 1750-3250 rpm (295.02 lb.-ft) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Fuel injection system | Diesel Commonrail |
| Gearbox | 7 gears, automatic transmission S tronic |
Powertrain & Engine Architecture
The heart of the A5 Cabriolet 40 TDI is the EA288 evo series 2.0-liter inline-four diesel engine, specifically coded DTPA. This engine is a turbocharged common-rail direct injection diesel, known for its robust construction and relatively high efficiency. The turbocharger, coupled with an intercooler, provides increased air density for improved combustion. The engine utilizes a sophisticated common-rail fuel injection system, delivering fuel at extremely high pressures for optimized atomization and combustion efficiency. The valvetrain employs a Dual Overhead Camshaft (DOHC) configuration with four valves per cylinder, enhancing volumetric efficiency and contributing to the engine’s power output.
Crucially, this variant incorporates a 48V mild hybrid system. This system features a belt-driven starter-generator, allowing for extended start-stop functionality, regenerative braking, and a small amount of electric assistance during acceleration. While not capable of fully electric driving, the mild hybrid system contributes to improved fuel economy and reduced emissions. The S tronic 7-speed dual-clutch transmission is paired with the engine. This transmission offers quick and smooth gear changes, contributing to a refined driving experience. The S tronic transmission is known for its efficiency and responsiveness, making it well-suited to the characteristics of the diesel engine.
Driving Characteristics
The 204 hp and 400 Nm (295 lb-ft) of torque delivered by the 40 TDI engine provide a comfortable and capable driving experience. Acceleration from 0-60 mph takes approximately 7.5 seconds, and the car reaches a top speed of 151 mph. While not a sports car, the A5 Cabriolet 40 TDI offers ample power for everyday driving and comfortable highway cruising. The S tronic transmission contributes to smooth and responsive gear changes, enhancing the overall driving experience. Compared to the more powerful gasoline-powered A5 variants, the 40 TDI prioritizes fuel efficiency and torque delivery over outright acceleration. The torque curve is relatively flat, providing strong pulling power across a wide range of engine speeds. Compared to the 1.5L TFSI, the 40 TDI offers significantly more torque, making it better suited for carrying passengers and luggage. Compared to the higher-output TDI variants, the 40 TDI offers a more balanced driving experience, sacrificing some performance for improved fuel economy.
Equipment & Trim Levels
The A5 Cabriolet 40 TDI typically came well-equipped, reflecting Audi’s premium positioning. Standard features generally included leather upholstery, three-zone automatic climate control, a 7-inch infotainment screen with Apple CarPlay and Android Auto compatibility, and a suite of driver-assistance systems such as lane departure warning and automatic emergency braking. Optional extras included a larger 10.1-inch infotainment screen, a Bang & Olufsen sound system, adaptive cruise control, and a head-up display. Trim levels varied by market, but generally offered options for upgraded interior materials, exterior styling enhancements, and additional driver-assistance features. The Sport trim often included sport seats and a sport suspension, while the S line trim offered a more aggressive exterior appearance and upgraded interior trim.
Chassis & Braking
The A5 Cabriolet utilizes a sophisticated chassis design, featuring a multi-link suspension system at both the front and rear. This suspension setup provides a comfortable ride quality while maintaining good handling characteristics. The front suspension incorporates a transverse stabilizer bar to reduce body roll during cornering. The rear suspension also features a stabilizer bar. Braking duties are handled by ventilated discs at the front and solid discs at the rear. The braking system is equipped with ABS (Anti-lock Braking System) and electronic brake-force distribution. The steering system is an electric power steering system, providing precise and responsive steering feel.
Market Reception & Comparison
The Audi A5 Cabriolet 40 TDI was generally well-received by automotive critics. It was praised for its comfortable ride, refined interior, and fuel-efficient engine. Critics noted that the 40 TDI offered a good balance of performance and economy, making it a practical choice for everyday driving. Compared to the gasoline-powered A5 variants, the 40 TDI offered significantly better fuel economy. Compared to the higher-output TDI variants, the 40 TDI was considered a more sensible choice for drivers who prioritized fuel efficiency over outright performance. Reliability reports suggest that the EA288 engine is generally reliable, although regular maintenance is essential.
Legacy
The Audi A5 Cabriolet 40 TDI (2020-2024) represents a well-engineered and refined open-top luxury car. The EA288 engine, coupled with the S tronic transmission and mild hybrid technology, provides a compelling combination of performance, efficiency, and refinement. On the used car market, these models are generally sought after for their fuel economy and comfortable driving experience. The mild hybrid system adds a layer of modernity, and the overall build quality is typical of Audi. With proper maintenance, the powertrain is expected to provide many years of reliable service, making it a solid choice for buyers seeking a stylish and practical convertible.
