The Audi A4 (B9 8W) 1.4 TFSI S tronic, produced from 2015 to 2018, represented an entry point into the fifth generation of Audi’s popular executive sedan. Positioned within the B9 A4 lineup – which also included 2.0 TFSI, 3.0 TDI, and performance-oriented S4 variants – the 1.4 TFSI S tronic aimed to deliver a balance of fuel efficiency, reasonable performance, and Audi’s signature refinement at a more accessible price point. This model was primarily marketed in Europe and other regions where smaller displacement, turbocharged engines were favored due to tax incentives and fuel economy regulations. It served as a key volume seller, appealing to buyers prioritizing practicality and running costs over outright speed.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 (B9 8W) |
| Type (Engine) | 1.4 TFSI (150 Hp) S tronic |
| Start of production | 2015 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6.4-7.1 l/100 km (36.8 – 33.1 US mpg, 44.1 – 39.8 UK mpg, 15.6 – 14.1 km/l) |
| Fuel consumption (extra urban) | 4.1-4.7 l/100 km (57.4 – 50 US mpg, 68.9 – 60.1 UK mpg, 24.4 – 21.3 km/l) |
| Fuel consumption (combined) | 4.9-5.6 l/100 km (48 – 42 US mpg, 57.6 – 50.4 UK mpg, 20.4 – 17.9 km/l) |
| CO2 emissions | 114-129 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.5 sec |
| Acceleration 0 – 62 mph | 8.5 sec |
| Acceleration 0 – 60 mph | 8.1 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 9.2 kg/Hp, 109.1 Hp/tonne |
| Weight-to-torque ratio | 5.5 kg/Nm, 181.8 Nm/tonne |
| Power | 150 Hp @ 5000-6000 rpm |
| Power per litre | 107.5 Hp/l |
| Torque | 250 Nm @ 1500-3500 rpm (184.39 lb.-ft. @ 1500-3500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CVNA |
| Engine displacement | 1395 cm3 (85.13 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 74.5 mm (2.93 in.) |
| Piston Stroke | 80 mm (3.15 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 4.3 l (4.54 US qt | 3.78 UK qt) |
| Kerb Weight | 1375 kg (3031.36 lbs.) |
| Max. weight | 1945 kg (4287.99 lbs.) |
| Max load | 570 kg (1256.63 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 965 l (34.08 cu. ft.) |
| Fuel tank capacity | 54 l (14.27 US gal | 11.88 UK gal) |
| Max. roof load | 90 kg (198.42 lbs.) |
| Permitted trailer load with brakes (8%) | 1700 kg (3747.86 lbs.) |
| Permitted trailer load with brakes (12%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load without brakes | 720 kg (1587.33 lbs.) |
| Permitted towbar download | 80 kg (176.37 lbs.) |
| Length | 4726 mm (186.06 in.) |
| Width | 1842 mm (72.52 in.) |
| Width including mirrors | 2022 mm (79.61 in.) |
| Height | 1427 mm (56.18 in.) |
| Wheelbase | 2820 mm (111.02 in.) |
| Front track | 1572 mm (61.89 in.) |
| Rear (Back) track | 1555 mm (61.22 in.) |
| Front overhang | 880 mm (34.65 in.) |
| Rear overhang | 1026 mm (40.39 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle (turning diameter) | 11.6 m (38.06 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 | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 205/60 R16; 225/50 R17; 245/40 R18; 245/35 R19 |
| Wheel rims size | 7J x 16 |
Powertrain & Engine Architecture
The heart of the A4 1.4 TFSI S tronic is the CVNA engine, a 1.4-liter inline-four cylinder gasoline engine. This engine utilizes direct fuel injection and a single turbocharger with an intercooler to boost power and efficiency. The CVNA is part of Audi’s EA211 engine family, known for its compact design and relatively lightweight construction. The engine’s cylinder head features four valves per cylinder, contributing to improved breathing and power output. The S tronic transmission is a seven-speed dual-clutch transmission (DCT). This transmission offers quick and smooth gear changes, enhancing both performance and fuel economy. Unlike traditional automatics, the S tronic doesn’t have a torque converter, resulting in a more direct connection between the engine and the wheels.
Driving Characteristics
The 1.4 TFSI S tronic A4 delivers adequate performance for everyday driving. While not as quick as the higher-powered 2.0 TFSI models, the 150 horsepower and 250 Nm (184 lb-ft) of torque provide sufficient acceleration for merging onto highways and overtaking slower traffic. The S tronic transmission contributes to a responsive driving experience, with quick shifts and minimal power loss. However, the engine can feel strained when pushed hard, particularly during uphill climbs or when fully loaded. The gear ratios are tuned for fuel efficiency, meaning the engine sometimes needs to work harder to maintain speed. Compared to a manual transmission equipped A4 1.4 TFSI, the S tronic offers greater convenience and ease of use, but some drivers may miss the greater control offered by a manual gearbox.
Equipment & Trim Levels
The A4 1.4 TFSI S tronic typically came standard with features such as automatic climate control, a multi-function steering wheel, power windows and mirrors, and an infotainment system with a color display. Safety features included ABS, electronic stability control, and multiple airbags. Optional extras included leather upholstery, a sunroof, a navigation system, and advanced driver-assistance systems like adaptive cruise control and lane departure warning. Trim levels varied by market, but generally offered progressively more luxurious appointments and features as you moved up the range. The base trim focused on essential features, while higher trims added comfort and convenience items.
Chassis & Braking
The B9 A4 features a sophisticated chassis design with independent multi-link suspension at both the front and rear. This suspension setup provides a comfortable ride and good handling characteristics. The 1.4 TFSI models typically used ventilated disc brakes on all four wheels, providing adequate stopping power for the vehicle’s weight and performance. The steering system is an electric power steering system, offering precise and responsive steering feel. Stabilizer bars are fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The A4 1.4 TFSI S tronic was generally well-received by automotive critics as a sensible and efficient option within the A4 range. It was praised for its fuel economy, comfortable ride, and refined interior. However, some critics noted that the engine lacked the punch of the larger displacement engines, and the driving experience wasn’t as engaging. Compared to the 2.0 TFSI models, the 1.4 TFSI offered significantly better fuel economy but at the expense of performance. The 1.4 TFSI also proved to be more reliable than some of the more complex diesel variants, with fewer reported issues related to the emissions control systems.
Legacy
The Audi A4 (B9 8W) 1.4 TFSI S tronic has proven to be a relatively reliable vehicle in the used car market. The EA211 engine, while not without its quirks, is generally durable and well-supported. The S tronic transmission, if properly maintained (regular fluid changes are crucial), can provide years of trouble-free operation. Today, these A4s represent a good value proposition for buyers seeking a comfortable, well-equipped, and fuel-efficient executive sedan. However, potential buyers should be aware of the importance of regular maintenance and should carefully inspect the vehicle for any signs of wear or damage.
