The Audi A5 Cabriolet 40 TDI quattro ultra S tronic, produced from 2019 to 2020, represents a mid-cycle refresh (facelift) of the F5 generation A5 Cabriolet. This variant occupied a significant position in Audi’s lineup, offering a blend of performance, efficiency, and open-air driving enjoyment. It catered to buyers seeking a premium convertible experience with the added security of all-wheel drive and the convenience of an automatic transmission. The “40 TDI” designation signifies a 2.0-liter turbocharged diesel engine producing 190 horsepower, positioned as a popular choice within the A5 Cabriolet range, slotting between the lower-powered diesel options and the more potent gasoline variants.
Technical Specifications
| Brand | Audi |
| Model | A5 |
| Generation | A5 Cabriolet (F5, facelift 2019) |
| Type (Engine) | 40 TDI (190 Hp) quattro ultra S tronic |
| Start of production | 2019 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Combined fuel consumption (WLTP) | 6.4-6.5 l/100 km (36.8 – 36.2 US mpg, 44.1 – 43.5 UK mpg, 15.6 – 15.4 km/l) |
| CO2 emissions (WLTP) | 167-172 g/km |
| Fuel consumption (urban) | 6 l/100 km (39.2 US mpg, 47.1 UK mpg, 16.7 km/l) |
| Fuel consumption (extra urban) | 5.0-5.1 l/100 km (47 – 46.1 US mpg, 56.5 – 55.4 UK mpg, 20 – 19.6 km/l) |
| Fuel consumption (combined) | 5.4 l/100 km (43.6 US mpg, 52.3 UK mpg, 18.5 km/l) |
| CO2 emissions | 141-143 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8 sec |
| Acceleration 0 – 62 mph | 8 sec |
| Acceleration 0 – 60 mph | 7.6 sec |
| Maximum speed | 233 km/h (144.78 mph) |
| Emission standard | Euro 6d-TEMP-EVAP-ISC |
| Weight-to-power ratio | 9.3 kg/Hp, 108 Hp/tonne |
| Weight-to-torque ratio | 4.4 kg/Nm, 227.3 Nm/tonne |
| Power | 190 Hp @ 3800-4200 rpm |
| Torque | 400 Nm @ 1750-3000 rpm (295.02 lb.-ft. @ 1750-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DETA, DESA |
| Engine displacement | 1968 cm3 (120.09 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 81 mm (3.19 in.) |
| Piston Stroke | 95.5 mm (3.76 in.) |
| Compression ratio | 15.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | OHC |
| Engine oil capacity | 4.7 l (4.97 US qt | 4.14 UK qt) |
| Coolant | 12.2 l (12.89 US qt | 10.73 UK qt) |
| Kerb Weight | 1760 kg (3880.14 lbs.) |
| Max. weight | 2280 kg (5026.54 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 380 l (13.42 cu. ft.) |
| Fuel tank capacity | 58 l (15.32 US gal | 12.76 UK gal) |
| Permitted trailer load with brakes (8%) | 2000 kg (4409.25 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 80 kg (176.37 lbs.) |
| Length | 4697 mm (184.92 in.) |
| Width | 1846 mm (72.68 in.) |
| Width including mirrors | 2029 mm (79.88 in.) |
| Height | 1384 mm (54.49 in.) |
| Wheelbase | 2764 mm (108.82 in.) |
| Front track | 1587 mm (62.48 in.) |
| Rear track | 1568 mm (61.73 in.) |
| Front overhang | 898 mm (35.35 in.) |
| Rear overhang | 1035 mm (40.75 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle | 11.5 m (37.73 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels permanently, and the rear wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 7 |
| Gearbox type | automatic transmission S tronic |
| Front suspension | Independent multi-link suspension |
| 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 | 225/50 R17; 245/40 R18 |
| Wheel rims size | 7.5J x 17; 8.5J x 18 |
INTRODUCTION
The Audi A5 Cabriolet 40 TDI quattro ultra S tronic, launched as part of the F5 facelift in 2019, offered a compelling package for drivers seeking a stylish and capable open-top vehicle. Built on the A5/S5/RS5 platform (shared with the Volkswagen Passat CC and other VW Group vehicles), the Cabriolet variant provided the aesthetic appeal of a coupe with the added freedom of a retractable soft top. The 40 TDI trim level, powered by a 2.0-liter turbocharged diesel engine, was a popular choice in European markets, where diesel fuel remained prevalent and fuel efficiency was highly valued. This model aimed to balance performance with economy, offering a comfortable and refined driving experience.
Powertrain & Engine Architecture
At the heart of the A5 Cabriolet 40 TDI lies the Volkswagen Group’s EA288 series of diesel engines. Specifically, this variant utilizes the DETA or DESA engine code, a 2.0-liter inline-four cylinder diesel. This engine features a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. The engine also incorporates a turbocharger with an intercooler to boost power and torque. The valvetrain utilizes an overhead camshaft (OHC) configuration. The engine produces 190 horsepower at 3800-4200 rpm and a substantial 400 Nm (295 lb-ft) of torque between 1750 and 3000 rpm. This broad torque curve provides strong acceleration in everyday driving situations. Paired with the engine is Audi’s 7-speed S tronic dual-clutch transmission. This transmission offers quick and smooth gear changes, contributing to both performance and efficiency. The “quattro ultra” all-wheel-drive system is also a key component, utilizing a multi-plate clutch to engage the rear wheels when needed, improving traction and stability.
Driving Characteristics
The 40 TDI S tronic combination delivers a refined and capable driving experience. While not overtly sporty, the engine provides ample power for comfortable cruising and confident overtaking. The S tronic transmission contributes to brisk acceleration, with the 0-60 mph sprint taking approximately 7.6 seconds. The broad torque band means that strong acceleration is available across a wide range of engine speeds. The quattro ultra all-wheel-drive system enhances grip and stability, particularly in adverse weather conditions. Compared to the higher-output gasoline variants, the 40 TDI offers a more relaxed and fuel-efficient driving experience. Compared to manual transmission versions, the S tronic provides greater convenience and smoother gear changes, although some enthusiasts may prefer the greater control offered by a manual gearbox. The gear ratios are tuned for a balance of acceleration and fuel economy, with taller gears for efficient highway cruising.
Equipment & Trim Levels
The A5 Cabriolet 40 TDI quattro ultra S tronic typically came well-equipped as standard. Features included automatic climate control, a multi-function steering wheel, Audi’s MMI infotainment system with a central display screen, and comfortable cloth upholstery. Higher trim levels offered upgrades such as leather upholstery, heated seats, a premium sound system, and advanced driver-assistance systems like adaptive cruise control and lane-keeping assist. Optional extras included a wind deflector to reduce wind noise when the roof is down, and various styling packages to personalize the vehicle’s appearance. The interior design was typically understated and elegant, reflecting Audi’s commitment to quality and refinement.
Chassis & Braking
The A5 Cabriolet features an independent multi-link suspension system at both the front and rear, providing a comfortable and controlled ride. The rear suspension incorporates a stabilizer bar to reduce body roll during cornering. The Cabriolet’s chassis was reinforced compared to the coupe version to compensate for the lack of a fixed roof, ensuring structural rigidity. Braking duties are handled by ventilated discs at the front and solid discs at the rear, providing ample stopping power. Anti-lock braking system (ABS) is standard, along with electronic stability control (ESC) to enhance safety. The steering is a rack-and-pinion system with electric power assistance, offering precise and responsive handling.
Market Reception & Comparison
The A5 Cabriolet 40 TDI was generally well-received by automotive critics. It was praised for its stylish design, comfortable ride, and efficient engine. The combination of all-wheel drive and the S tronic transmission was also seen as a positive attribute. Compared to other trims in the A5 Cabriolet lineup, the 40 TDI offered a compelling balance of performance and economy. While the higher-output gasoline variants provided more exhilarating acceleration, the 40 TDI delivered superior fuel efficiency and lower running costs. The 40 TDI was often compared to similar premium convertibles from BMW and Mercedes-Benz, and generally held its own in terms of quality, refinement, and driving experience.
Legacy
The 2.0-liter TDI engine and S tronic transmission pairing have proven to be relatively reliable in the long term, although regular maintenance is crucial. Like all modern diesel engines, the 40 TDI is susceptible to issues with the diesel particulate filter (DPF) if not driven on longer journeys periodically. On the used car market, the A5 Cabriolet 40 TDI remains a popular choice, offering a stylish and well-equipped convertible at a reasonable price. Its fuel efficiency and relatively low running costs make it an attractive option for buyers seeking a premium open-top experience without breaking the bank. The quattro all-wheel-drive system adds to its appeal, particularly in regions with inclement weather.
