The Audi RS4 Avant (B9, facelift 2019) represents the pinnacle of performance within the B9 generation of Audi’s renowned RS4 model line. Introduced as part of a mid-cycle refresh, this variant combines a potent 2.9 TFSI V6 engine producing 450 horsepower with Audi’s quattro all-wheel-drive system and an eight-speed tiptronic automatic transmission. Positioned as the flagship estate car, it caters to drivers seeking a blend of everyday practicality and exhilarating performance. Production began in 2019 and continues to be a highly sought-after vehicle in the high-performance wagon segment.
| Brand | Audi |
| Model | RS4 |
| Generation | RS4 Avant (B9, facelift 2019) |
| Type (Engine) | 2.9 TFSI V6 (450 Hp) quattro tiptronic |
| Start of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 9.7-10.1 l/100 km (24.2 – 23.3 US mpg, 29.1 – 28 UK mpg, 10.3 – 9.9 km/l) |
| CO2 emissions (WLTP) | 218-229 g/km |
| Fuel consumption (urban) | 12.5 l/100 km (18.8 US mpg, 22.6 UK mpg, 8 km/l) |
| Fuel consumption (extra urban) | 7.2 l/100 km (32.7 US mpg, 39.2 UK mpg, 13.9 km/l) |
| Fuel consumption (combined) | 9.2 l/100 km (25.6 US mpg, 30.7 UK mpg, 10.9 km/l) |
| CO2 emissions | 208 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.1 sec |
| Acceleration 0 – 62 mph | 4.1 sec |
| Acceleration 0 – 60 mph | 3.9 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6d-TEMP-EVAP-ISC |
| Weight-to-power ratio | 3.9 kg/Hp, 257.9 Hp/tonne |
| Weight-to-torque ratio | 2.9 kg/Nm, 343.8 Nm/tonne |
| Power | 450 Hp @ 5700-6700 rpm |
| Power per litre | 155.5 Hp/l |
| Torque | 600 Nm @ 1900-5000 rpm (442.54 lb.-ft. @ 1900-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EA839 / DECA |
| Engine displacement | 2894 cm3 (176.6 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 84.5 mm (3.33 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC, Audi Valvelift System |
| Engine oil capacity | 7.6 l (8.03 US qt | 6.69 UK qt) |
| Coolant | 14.7 l (15.53 US qt | 12.93 UK qt) |
| Kerb Weight | 1745 kg (3847.07 lbs.) |
| Max. weight | 2350 kg (5180.86 lbs.) |
| Max load | 605 kg (1333.8 lbs.) |
| Trunk (boot) space – minimum | 495 l (17.48 cu. ft.) |
| Trunk (boot) space – maximum | 1510 l (53.33 cu. ft.) |
| Fuel tank capacity | 58 l (15.32 US gal | 12.76 UK gal) |
| Max. roof load | 90 kg (198.42 lbs.) |
| Permitted trailer load with brakes (8%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load with brakes (12%) | 1900 kg (4188.78 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 80 kg (176.37 lbs.) |
| Length | 4782 mm (188.27 in.) |
| Width | 1866 mm (73.46 in.) |
| Width including mirrors | 2022 mm (79.61 in.) |
| Height | 1414-1438 mm (55.67 – 56.61 in.) |
| Wheelbase | 2826 mm (111.26 in.) |
| Front track | 1580 mm (62.2 in.) |
| Rear track | 1575 mm (62.01 in.) |
| Front overhang | 918 mm (36.14 in.) |
| Rear overhang | 1038 mm (40.87 in.) |
| Drag coefficient (Cd) | 0.33 |
| Minimum turning circle | 11.7 m (38.39 ft.) |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 375 mm |
| Rear brakes | Ventilated discs, 330 mm |
| Number of gears | 8 |
| Type of gearbox | automatic transmission tiptronic |
Powertrain & Engine Architecture
The heart of the 2019 RS4 Avant is the EA839 2.9-liter twin-turbocharged V6 engine, internally designated as the DECA code. This engine represents a departure from the naturally aspirated V8s of previous RS4 generations, prioritizing efficiency and torque delivery. The engine utilizes a direct injection system, injecting fuel directly into the combustion chambers for precise fuel control and improved performance. The valvetrain employs Audi’s Valvelift system, allowing for variable valve lift on both the intake and exhaust sides, optimizing engine performance across the rev range. The twin-scroll turbochargers, positioned within the V of the engine, minimize turbo lag and provide a broad torque curve. The eight-speed tiptronic automatic transmission is specifically tuned for rapid shifts and provides a more engaging driving experience than a traditional automatic. It features a torque converter lockup clutch for improved efficiency at cruising speeds.
Driving Characteristics
The combination of the 450 hp engine and the tiptronic transmission results in a remarkably quick and capable vehicle. Acceleration from 0 to 60 mph is achieved in approximately 3.9 seconds, and the car is electronically limited to a top speed of 155 mph. The tiptronic transmission offers smooth and responsive shifts, although some enthusiasts prefer the more direct engagement of a manual gearbox. The quattro all-wheel-drive system provides exceptional traction, particularly in adverse weather conditions. The RS4 Avant feels planted and stable, even when pushed hard through corners. Compared to the earlier naturally aspirated V8 RS4, the 2.9 TFSI offers a more accessible powerband with significantly more torque available at lower engine speeds. This makes it easier to drive in everyday situations while still delivering exhilarating performance when desired.
Equipment & Trim Levels
The RS4 Avant came standard with a comprehensive list of features, including sport seats upholstered in Nappa leather and Alcantara, a flat-bottom steering wheel, and a virtual cockpit digital instrument cluster. Exterior features included a unique RS-specific body kit, large alloy wheels, and stainless steel exhaust outlets. Optional extras included a Bang & Olufsen sound system, carbon fiber trim, and a head-up display. The interior design focused on a sporty and luxurious aesthetic, with high-quality materials and meticulous attention to detail.
Chassis & Braking
The RS4 Avant features a sport-tuned suspension with coil springs and adaptive dampers. The suspension is designed to provide a balance between comfort and handling. The front suspension utilizes a multi-link setup with a transverse stabilizer, while the rear suspension employs an independent multi-link spring suspension with a stabilizer. Braking duties are handled by large, ventilated disc brakes on all four wheels, providing ample stopping power. Front brakes measure 375mm, while rear brakes are 330mm. The ABS (Anti-lock braking system) ensures optimal braking performance in various conditions.
Market Reception & Comparison
The 2019 RS4 Avant was generally well-received by automotive critics, who praised its performance, handling, and practicality. Some critics noted that the engine lacked the character of the previous V8, but the overall package was considered highly competitive. Compared to other high-performance wagons, such as the BMW M5 Touring (not available in the US market) and the Mercedes-AMG C63 Estate, the RS4 Avant offered a compelling combination of performance, luxury, and value. Fuel economy, while not a primary concern for buyers in this segment, was respectable for a vehicle of its performance capabilities, averaging around 24-28 mpg on the combined cycle.
Legacy
The 2.9 TFSI V6 engine has proven to be a reliable and durable powerplant, with few reported issues. The tiptronic transmission is also generally considered to be robust and dependable. As a used car, the 2019 RS4 Avant holds its value well, reflecting its desirability and performance credentials. Regular maintenance, including oil changes and inspections, is crucial to ensure the long-term reliability of this vehicle. The RS4 Avant (B9) represents a significant evolution in the RS4 lineage, offering a compelling blend of performance, practicality, and technology that continues to appeal to enthusiasts today.
