The Audi A3 Sportback 1.8 TFSI with the S tronic dual-clutch transmission, produced from 2008 to 2013, represents a significant iteration of Audi’s popular compact hatchback. This variant falls within the 8PA facelift generation of the A3, benefiting from styling and technological updates introduced in 2008. Positioned as a mid-range offering, it bridged the gap between the entry-level 1.6-liter models and the performance-oriented 2.0 TFSI variants. The 1.8 TFSI S tronic aimed to deliver a balance of fuel efficiency, respectable performance, and the convenience of an automatic gearbox, making it a popular choice in European markets where manual transmissions traditionally dominated the compact segment.
Technical Specifications
| Brand | Audi |
| Model | A3 |
| Generation | A3 Sportback (8PA, facelift 2008) |
| Type (Engine) | 1.8 TFSI (160 Hp) S tronic |
| Start of production | 2008 |
| End of production | 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 8.5 l/100 km (27.7 US mpg, 33.2 UK mpg, 11.8 km/l) |
| Fuel consumption (extra urban) | 5.2 l/100 km (45.2 US mpg, 54.3 UK mpg, 19.2 km/l) |
| Fuel consumption (combined) | 6.5 l/100 km (36.2 US mpg, 43.5 UK mpg, 15.4 km/l) |
| CO2 emissions | 149 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.2 sec |
| Acceleration 0 – 62 mph | 8.2 sec |
| Acceleration 0 – 60 mph | 7.8 sec |
| Maximum speed | 220 km/h (136.7 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 8.3 kg/Hp, 119.9 Hp/tonne |
| Weight-to-torque ratio | 5.3 kg/Nm, 187.3 Nm/tonne |
| Power | 160 Hp @ 4500-6200 rpm |
| Power per litre | 89 Hp/l |
| Torque | 250 Nm @ 1500-4500 rpm (184.39 lb.-ft. @ 1500-4500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | BZB, CDAA |
| Engine displacement | 1798 cm3 (109.72 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82.5 mm (3.25 in.) |
| Piston Stroke | 84.1 mm (3.31 in.) |
| Compression ratio | 9.6:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4.6 l (4.86 US qt | 4.05 UK qt) |
| Kerb Weight | 1335 kg (2943.17 lbs.) |
| Max. weight | 1895 kg (4177.76 lbs.) |
| Max load | 560 kg (1234.59 lbs.) |
| Trunk (boot) space – minimum | 552 l (19.49 cu. ft.) |
| Trunk (boot) space – maximum | 1104 l (38.99 cu. ft.) |
| Fuel tank capacity | 55 l (14.53 US gal | 12.1 UK gal) |
| Length | 4292 mm (168.98 in.) |
| Width | 1765 mm (69.49 in.) |
| Height | 1423 mm (56.02 in.) |
| Wheelbase | 2578 mm (101.5 in.) |
| Front track | 1534 mm (60.39 in.) |
| Rear (Back) track | 1507 mm (59.33 in.) |
| Ride height (ground clearance) | 110 mm (4.33 in.) |
| Drag coefficient (Cd) | 0.31 |
| Minimum turning circle (turning diameter) | 10.7 m (35.1 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission S tronic |
| Front suspension | Spring Strut |
| Rear suspension | Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 205/55 R16; 225/45 R17 |
| Wheel rims size | 6.5J x 16; 7.5J x 17 |
INTRODUCTION
The Audi A3 Sportback 1.8 TFSI S tronic, launched in 2008 as part of the 8PA facelift, was a key model in Audi’s strategy to broaden the appeal of the A3 range. The Sportback body style, a five-door hatchback, offered increased practicality compared to the three-door A3, making it a popular choice for families and those requiring more versatile cargo space. This particular variant, powered by the 1.8-liter turbocharged engine and paired with the seven-speed S tronic dual-clutch transmission, aimed to provide a refined and efficient driving experience. It sat comfortably within the A3 lineup, offering a step up in performance from the base 1.6-liter models while remaining more accessible than the higher-performance 2.0 TFSI versions.
Powertrain & Engine Architecture
At the heart of the A3 1.8 TFSI S tronic lies the 1798cc, four-cylinder, inline engine, designated with engine codes BZB or CDAA depending on the specific production year and market. This engine is a member of Audi’s TFSI (Turbocharged Fuel Stratified Injection) family, utilizing direct fuel injection and a turbocharger with an intercooler to deliver a balance of power and efficiency. The direct injection system precisely meters fuel into the combustion chamber, improving combustion efficiency and reducing emissions. The engine features a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing gas flow for increased power output. The S tronic transmission is a seven-speed dual-clutch gearbox. This transmission offers incredibly fast and smooth gear changes, contributing to both performance and fuel economy. It operates by pre-selecting the next gear, allowing for near-instantaneous shifts without the torque interruption associated with traditional automatic transmissions.
Driving Characteristics
The 160 horsepower and 184 lb-ft of torque produced by the 1.8 TFSI engine, coupled with the S tronic transmission, provided the A3 Sportback with brisk acceleration. The 0-60 mph sprint was typically achieved in around 7.8 seconds, making it competitive within its class. The S tronic transmission’s quick shifts and well-chosen gear ratios ensured that the engine remained within its optimal power band. Compared to the manual transmission versions of the 1.8 TFSI, the S tronic offered a more effortless driving experience, particularly in urban traffic. However, some enthusiasts found the S tronic slightly less engaging than the manual, lacking the direct connection and control. Against the more powerful 2.0 TFSI models, the 1.8 TFSI S tronic offered a more fuel-efficient and affordable option, albeit with a noticeable performance deficit.
Equipment & Trim Levels
The A3 Sportback 1.8 TFSI S tronic typically came equipped with a respectable level of standard features. These included air conditioning, alloy wheels (typically 16 or 17 inch), a multi-function steering wheel, and an audio system with CD player. Higher trim levels, such as SE or Sport, added features like climate control, upgraded upholstery, parking sensors, and a more sophisticated infotainment system. Optional extras included a panoramic sunroof, leather seats, and a navigation system. Interior upholstery was generally cloth on base models, with leather options available as an upgrade. The dashboard layout was typical of Audi’s design language at the time, characterized by a clean and functional aesthetic.
Chassis & Braking
The A3 Sportback 1.8 TFSI S tronic utilized a front-wheel-drive layout with a MacPherson strut suspension at the front and a multi-link suspension at the rear. This suspension setup provided a good balance between ride comfort and handling. Braking duties were handled by ventilated discs at the front and solid discs at the rear, equipped with ABS (Anti-lock Braking System) as standard. The chassis was tuned to provide a stable and predictable driving experience, with minimal body roll during cornering. Stabilizer bars were fitted to both the front and rear axles to further enhance handling.
Market Reception & Comparison
The Audi A3 Sportback 1.8 TFSI S tronic was generally well-received by automotive critics. It was praised for its refined engine, smooth-shifting transmission, and comfortable ride. Fuel economy was also a strong point, with combined figures around 36.2 US mpg. Compared to the 1.6-liter A3 models, the 1.8 TFSI offered a significant performance upgrade. However, it was often seen as a compromise between performance and economy, with the 2.0 TFSI models offering more exhilarating acceleration. Reliability was generally good, although some owners reported minor issues with the S tronic transmission, such as occasional jerky shifts.
Legacy
The 1.8 TFSI engine and S tronic transmission combination proved to be a durable and reliable powertrain. Many examples of the A3 Sportback 1.8 TFSI S tronic are still on the road today, demonstrating the longevity of the engineering. In the used car market, these models represent a good value proposition, offering a blend of Audi refinement, practicality, and reasonable running costs. Regular maintenance, including timely oil changes and S tronic transmission servicing, is crucial to ensure the continued reliability of these vehicles. The A3 1.8 TFSI S tronic remains a popular choice for those seeking a well-rounded and stylish compact hatchback.
