The Audi A4 Avant 40 TFSI S tronic, produced from 2018 to 2019, represents a mid-cycle refresh of the B9 (8W) generation A4 Avant. Positioned as a popular choice within Audi’s lineup, this variant blended performance, practicality, and technology, catering to buyers seeking a premium compact estate car. The “40 TFSI” designation signified a 2.0-liter turbocharged four-cylinder engine producing 190 horsepower, paired with Audi’s seven-speed S tronic dual-clutch transmission. This combination aimed to deliver a balance between spirited driving and reasonable fuel efficiency, making it a versatile option for both daily commutes and longer journeys. The facelift brought subtle styling updates, enhanced technology features, and refinements to the engine and transmission for improved responsiveness and efficiency.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 Avant (B9 8W, facelift 2018) |
| Type (Engine) | 40 TFSI (190 Hp) S tronic |
| Start of production | 2018 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 7.4-7.6 l/100 km (31.8 – 30.9 US mpg, 38.2 – 37.2 UK mpg, 13.5 – 13.2 km/l) |
| Fuel consumption (extra urban) | 4.8-5.2 l/100 km (49 – 45.2 US mpg, 58.9 – 54.3 UK mpg, 20.8 – 19.2 km/l) |
| Fuel consumption (combined) | 5.8-6.0 l/100 km (40.6 – 39.2 US mpg, 48.7 – 47.1 UK mpg, 17.2 – 16.7 km/l) |
| CO2 emissions | 133-137 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.5 sec |
| Acceleration 0 – 62 mph | 7.5 sec |
| Acceleration 0 – 60 mph | 7.1 sec |
| Maximum speed | 238 km/h (147.89 mph) |
| Emission standard | Euro 6d – TEMP |
| Weight-to-power ratio | 7.9 kg/Hp, 126.2 Hp/tonne |
| Weight-to-torque ratio | 4.7 kg/Nm, 212.6 Nm/tonne |
| Power | 190 Hp @ 4200-6000 rpm |
| Torque | 320 Nm @ 1450-4200 rpm (236.02 lb.-ft. @ 1450-4200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DKYA, DLVA |
| 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 | 5.2 l (5.49 US qt | 4.58 UK qt) |
| Kerb Weight | 1505 kg (3317.96 lbs) |
| Max. weight | 2115 kg (4662.78 lbs) |
| Max load | 610 kg (1344.82 lbs) |
| Trunk (boot) space – minimum | 495 l (17.48 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 | 750 kg (1653.47 lbs) |
| Permitted towbar download | 80 kg (176.37 lbs) |
| Length | 4738 mm (186.54 in) |
| Width | 1842 mm (72.52 in) |
| Width including mirrors | 2022 mm (79.61 in) |
| Height | 1435 mm (56.5 in) |
| Wheelbase | 2820 mm (111.02 in) |
| Front track | 1572 mm (61.89 in) |
| Rear track | 1555 mm (61.22 in) |
| Front overhang | 880 mm (34.65 in) |
| Rear overhang | 1038 mm (40.87 in) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 7 |
| Gearbox type | Automatic transmission S tronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
Powertrain & Engine Architecture
The heart of the A4 Avant 40 TFSI is the EA888 2.0-liter inline-four cylinder engine. This engine, specifically coded DKYA or DLVA depending on the exact production date and market, utilizes direct fuel injection and a single twin-scroll turbocharger with an intercooler. This configuration allows for a broad torque curve and responsive power delivery. The engine benefits from Audi’s Valve Lift System (AVS) on the intake side, which adjusts valve lift based on driving conditions to optimize efficiency and performance. The S tronic seven-speed dual-clutch transmission provides rapid and smooth gear changes, contributing to both acceleration and fuel economy. This transmission features a wet clutch design for improved heat dissipation and durability. The engine is longitudinally mounted, driving the front wheels in this configuration.
Driving Characteristics
The 190 horsepower and 320 Nm (236 lb-ft) of torque delivered by the 40 TFSI engine, coupled with the S tronic transmission, resulted in a 0-60 mph time of around 7.1 seconds. While not the quickest A4 Avant variant, it offered ample power for everyday driving and overtaking maneuvers. The S tronic transmission’s quick shifts and well-chosen gear ratios ensured that the engine remained in its optimal power band. Compared to the more powerful 45 TFSI models, the 40 TFSI felt less urgent in its acceleration, but it provided a more relaxed and fuel-efficient driving experience. The front-wheel-drive configuration offered good traction in most conditions, although it could exhibit some torque steer under hard acceleration.
Equipment & Trim Levels
The A4 Avant 40 TFSI S tronic typically came well-equipped as standard. Features included Audi’s MMI infotainment system with a 7-inch display (upgradeable to a larger screen), automatic climate control, power-adjustable front seats, and a leather-wrapped steering wheel. Standard safety features included ABS, electronic stability control, and multiple airbags. Optional extras included Audi’s Virtual Cockpit digital instrument cluster, a premium sound system, navigation, and various driver-assistance systems like adaptive cruise control and lane departure warning. Interior upholstery was typically cloth, with leather options available as an upgrade. Trim levels varied by market, but generally offered packages that added features like heated seats, parking sensors, and upgraded interior trim.
Chassis & Braking
The B9 A4 Avant featured a sophisticated chassis design with independent multi-link suspension at both the front and rear. This setup provided a comfortable ride quality while maintaining good handling characteristics. The 40 TFSI variant typically used ventilated disc brakes on all four wheels, providing ample stopping power. The steering system was an electromechanical power steering system, offering precise and responsive steering feel. Stabilizer bars were fitted front and rear to reduce body roll during cornering. The suspension tuning was geared towards comfort and refinement, making it a pleasant vehicle for long-distance travel.
Market Reception & Comparison
The Audi A4 Avant 40 TFSI S tronic was generally well-received by automotive critics. It was praised for its refined engine, smooth transmission, comfortable ride, and practical estate car body style. Fuel economy was considered competitive for its class. Compared to the higher-output 45 TFSI models, the 40 TFSI offered a more affordable entry point into the A4 Avant range, appealing to buyers who prioritized efficiency and value over outright performance. The 2.0 TDI diesel variants were also popular, offering even better fuel economy but with a different driving experience. Some critics noted that the front-wheel-drive configuration wasn’t as engaging as the available quattro all-wheel-drive system.
Legacy
The EA888 2.0-liter turbocharged engine and S tronic transmission have proven to be reliable powertrains when properly maintained. Common issues include carbon buildup on the intake valves (which can be mitigated with regular fuel system cleaning) and occasional transmission control module glitches. The B9 A4 Avant, including the 40 TFSI variant, has maintained a good reputation for build quality and durability. On the used car market, these models represent a good value proposition, offering a blend of luxury, practicality, and technology at a reasonable price point. Regular maintenance, including oil changes and adherence to Audi’s recommended service intervals, is crucial for ensuring the long-term reliability of this powertrain.
