The Audi TT Roadster (8S), particularly the facelifted version introduced in 2018 with the 40 TFSI 197 horsepower engine and S tronic dual-clutch transmission, represents a compelling blend of sporty styling, modern technology, and accessible performance within the premium compact roadster segment. Produced from 2018 through 2023, this variant occupied a key position in the TT Roadster lineup, serving as a popular choice for buyers seeking a balance between driving enjoyment and everyday usability. It builds upon the foundation of the 8S platform, first introduced in 2014, with updates to styling, technology, and engine efficiency.
Technical Specifications
| Brand | Audi |
| Model | TT |
| Generation | TT Roadster (8S, facelift 2018) |
| Type (Engine) | 40 TFSI (197 Hp) S tronic |
| Start of production | 2018 |
| End of production | 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Roadster |
| Seats | 2 |
| Doors | 2 |
| Combined fuel consumption (WLTP) | 7.0-7.3 l/100 km (33.6 – 32.2 US mpg, 40.4 – 38.7 UK mpg, 14.3 – 13.7 km/l) |
| CO2 emissions (WLTP) | 158-165 g/km |
| Fuel consumption (urban) | 8.3 l/100 km (28.3 US mpg, 34 UK mpg, 12 km/l) |
| Fuel consumption (extra urban) | 5.1-5.2 l/100 km (46.1 – 45.2 US mpg, 55.4 – 54.3 UK mpg, 19.6 – 19.2 km/l) |
| Fuel consumption (combined) | 6.3 l/100 km (37.3 US mpg, 44.8 UK mpg, 15.9 km/l) |
| CO2 emissions | 143-145 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.9 sec |
| Acceleration 0 – 62 mph | 6.9 sec |
| Acceleration 0 – 60 mph | 6.6 sec |
| Maximum speed | 247 km/h (153.48 mph) |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 7.3 kg/Hp, 137.3 Hp/tonne |
| Weight-to-torque ratio | 4.5 kg/Nm, 223 Nm/tonne |
| Power | 197 Hp @ 4400-6000 rpm |
| Torque | 320 Nm @ 1500-4300 rpm (236.02 lb.-ft. @ 1500-4300 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | DKZB, DNNB |
| Engine displacement | 1984 cm3 (121.07 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Kerb Weight | 1435 kg (3163.63 lbs.) |
| Max. weight | 1715 kg (3780.93 lbs.) |
| Max load | 280 kg (617.29 lbs.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Length | 4191 mm (165 in.) |
| Width | 1832 mm (72.13 in.) |
| Width including mirrors | 1966 mm (77.4 in.) |
| Height | 1355 mm (53.35 in.) |
| Wheelbase | 2505 mm (98.62 in.) |
| Front track | 1572 mm (61.89 in.) |
| Rear track | 1552 mm (61.1 in.) |
| Front overhang | 893 mm (35.16 in.) |
| Rear overhang | 793 mm (31.22 in.) |
| Drag coefficient (Cd) | 0.31 |
| Drivetrain Architecture | Front wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission S tronic |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| 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 |
| Wheel rims size | 8J x 17 |
INTRODUCTION
The 2018-2023 Audi TT Roadster 40 TFSI S tronic is a two-door, two-seat convertible that represents the third generation of the TT Roadster (8S). The facelift introduced in 2018 brought subtle styling revisions, enhanced technology, and updated engine options to maintain the TT’s appeal in a competitive market. This 40 TFSI variant, powered by a 2.0-liter turbocharged four-cylinder engine, was positioned as the entry point to the TT Roadster range, offering a balance of performance, fuel efficiency, and affordability. It aimed to attract buyers who desired the TT’s iconic design and driving experience without the higher price tag of the more powerful TTS model.
Powertrain & Engine Architecture
At the heart of the 40 TFSI Roadster lies the EA888 2.0-liter inline-four cylinder engine, specifically coded DKZB or DNNB depending on the production year and market. This engine utilizes direct fuel injection (FSI) and a single turbocharger with an intercooler to deliver a responsive and efficient driving experience. The engine’s aluminum block and cylinder head contribute to its relatively lightweight construction. The S tronic 7-speed dual-clutch transmission is a key component, offering rapid and smooth gear changes. This transmission allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles. The dual-clutch design provides quicker shifts compared to a traditional torque-converter automatic, enhancing the sporty feel of the car. The engine produces 197 horsepower and 320 Nm (236 lb-ft) of torque, providing ample power for spirited driving.
Driving Characteristics
The 40 TFSI S tronic combination delivers a surprisingly engaging driving experience. While not as overtly powerful as the TTS, the 197 hp engine provides sufficient acceleration for both city driving and highway cruising. The S tronic transmission contributes to a responsive feel, with quick shifts and minimal torque interruption. The front-wheel-drive configuration offers good traction in most conditions, although torque steer can be noticeable under hard acceleration. The gear ratios are tuned to prioritize both fuel efficiency and performance, with a relatively short final drive providing brisk acceleration. Compared to a manual transmission equipped TT, the S tronic offers greater convenience and ease of use, particularly in stop-and-go traffic. However, some driving enthusiasts may prefer the more direct engagement of a manual gearbox.
Equipment & Trim Levels
The 2018+ TT Roadster 40 TFSI S tronic came standard with a generous array of features, including Audi’s Virtual Cockpit – a fully digital instrument cluster – leather upholstery, automatic climate control, and a premium sound system. Exterior features included LED headlights and taillights, and 17-inch alloy wheels. Optional extras included upgraded leather packages, a wind deflector to reduce turbulence in the cabin, a navigation system, and advanced driver-assistance systems such as adaptive cruise control and blind-spot monitoring. The interior design is minimalist and driver-focused, with a clean dashboard layout and high-quality materials. Trim levels were relatively streamlined, with most customization achieved through optional packages.
Chassis & Braking
The TT Roadster utilizes a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable yet controlled ride. The suspension is tuned to balance handling precision with everyday comfort. The car is equipped with ventilated front disc brakes and solid rear discs, providing adequate stopping power for its weight and performance. Anti-lock braking system (ABS) is standard, along with electronic stability control (ESC). The chassis is relatively lightweight, contributing to the car’s agile handling characteristics. The front track is slightly wider than the rear track, enhancing stability.
Market Reception & Comparison
The 40 TFSI S tronic variant of the TT Roadster was generally well-received by automotive critics. It was praised for its stylish design, comfortable interior, and engaging driving experience. Fuel economy was also a strong point, with the 2.0-liter engine delivering respectable MPG figures. Compared to the higher-output TTS model, the 40 TFSI offered a more affordable entry point to the TT Roadster range, making it accessible to a wider range of buyers. However, some critics noted that the front-wheel-drive configuration and relatively modest power output limited its overall performance potential. Compared to competitors like the BMW Z4 and Porsche 718 Boxster, the TT Roadster offered a unique blend of style, technology, and value.
Legacy
The 2018-2023 Audi TT Roadster 40 TFSI S tronic has proven to be a reliable and well-regarded vehicle in the used car market. The EA888 engine is known for its durability, and the S tronic transmission, while requiring periodic maintenance, is generally robust. Common issues reported by owners include minor electrical glitches and occasional oil consumption. However, overall, the 40 TFSI variant has a good reputation for long-term reliability. The TT Roadster’s iconic design and engaging driving experience continue to make it a desirable choice for buyers seeking a stylish and fun-to-drive convertible.
