The Audi A4 (B9 8W) 50 TDI quattro tiptronic, introduced with the facelift in 2019, represents a significant offering in the premium compact executive car segment. This variant, powered by a 3.0-liter turbocharged diesel engine, was positioned as a high-performance, technologically advanced option within the A4 lineup. It aimed to deliver a blend of strong acceleration, refined comfort, and all-weather capability through Audi’s renowned quattro all-wheel-drive system. Production of this specific configuration was limited to the 2019 model year, making it a relatively rare iteration of the B9 A4.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 (B9 8W, facelift 2018) |
| Type (Engine) | 50 TDI (286 Hp) quattro tiptronic |
| Start of production | 2019 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6.9-7.1 l/100 km (34.1 – 33.1 US mpg, 40.9 – 39.8 UK mpg, 14.5 – 14.1 km/l) |
| Fuel consumption (extra urban) | 5.0-5.3 l/100 km (47 – 44.4 US mpg, 56.5 – 53.3 UK mpg, 20 – 18.9 km/l) |
| Fuel consumption (combined) | 5.7-6.0 l/100 km (41.3 – 39.2 US mpg, 49.6 – 47.1 UK mpg, 17.5 – 16.7 km/l) |
| CO2 emissions | 150-156 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 5.2 sec |
| Acceleration 0 – 62 mph | 5.2 sec |
| Acceleration 0 – 60 mph | 4.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d – TEMP |
| Weight-to-power ratio | 5.9 kg/Hp, 169.2 Hp/tonne |
| Weight-to-torque ratio | 2.7 kg/Nm, 366.9 Nm/tonne |
| Power | 286 Hp @ 3500-4000 rpm |
| Torque | 620 Nm @ 2250-3000 rpm (457.29 lb.-ft. @ 2250-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DCPC |
| Engine displacement | 2967 cm3 (181.06 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 91.4 mm (3.6 in.) |
| Compression ratio | 16:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.1 l (6.45 US qt | 5.37 UK qt) |
| Coolant capacity | 15.2 l (16.06 US qt | 13.37 UK qt) |
| Kerb Weight | 1690 kg (3725.81 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 960 l (33.9 cu. ft.) |
| Fuel tank capacity | 58 l (15.32 US gal | 12.76 UK gal) |
| AdBlue tank capacity | 12 l (3.17 US gal | 2.64 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 | 4738 mm (186.54 in.) |
| Width | 1842 mm (72.52 in.) |
| Width including mirrors | 2022 mm (79.61 in.) |
| Height | 1428 mm (56.22 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.) |
| Minimum turning circle | 11.6 m (38.06 ft.) |
| Drivetrain | All wheel drive (4×4) |
| Number of gears | 8 |
| Gearbox type | automatic transmission tiptronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Tire size | 225/50 R17; 245/40 R18 |
| Wheel rims size | 7.5J x 17; 8J x 18 |
INTRODUCTION
The Audi A4 B9.5 50 TDI quattro tiptronic, released in 2019, is a facelifted version of the B9 A4, representing a mid-cycle refresh for the fourth generation of Audi’s popular executive sedan. This particular variant utilizes a potent 3.0-liter V6 turbocharged diesel engine, paired with Audi’s eight-speed tiptronic automatic transmission and the quattro all-wheel-drive system. It was positioned as a premium offering, sitting near the top of the A4 range, below the more performance-oriented S4 model. The “50 TDI” designation reflects Audi’s revised naming scheme, indicating a power output level within their diesel engine hierarchy.
Powertrain & Engine Architecture
At the heart of the 50 TDI is the DCPC engine code, a 2,967 cc (181.06 cu. in.) V6 diesel engine. This engine features a cast iron block, aluminum cylinder heads, and a sophisticated turbocharging system with an intercooler. The engine employs a common rail direct fuel injection system, delivering fuel at extremely high pressures for optimized combustion. The valvetrain utilizes a dual overhead camshaft (DOHC) design with four valves per cylinder, enhancing volumetric efficiency. The eight-speed tiptronic automatic transmission is a torque-converter type, known for its smooth shifts and responsiveness. It features adaptive shift programs that adjust to the driver’s style and driving conditions. The quattro all-wheel-drive system utilizes a self-locking center differential, distributing torque between the front and rear axles as needed, providing enhanced traction and stability.
Driving Characteristics
The 50 TDI quattro tiptronic delivers a compelling driving experience. The 620 Nm (457.29 lb.-ft.) of torque, available from 2250-3000 rpm, provides strong acceleration in all gears. The 0-60 mph sprint is achieved in approximately 4.9 seconds, making it a genuinely quick sedan. The eight-speed tiptronic transmission contributes to smooth and seamless gear changes, enhancing the overall refinement. Compared to the lower-powered 2.0-liter TDI variants, the 50 TDI offers significantly more performance and a more relaxed driving experience, particularly during highway cruising and overtaking maneuvers. While not as overtly sporty as the S4, the 50 TDI provides ample power and grip for spirited driving. The quattro system inspires confidence in adverse weather conditions, providing excellent stability and traction.
Equipment & Trim Levels
The 50 TDI quattro tiptronic typically came well-equipped as standard. Features included Audi’s Virtual Cockpit digital instrument cluster, a touchscreen infotainment system with navigation, leather upholstery, tri-zone automatic climate control, and a suite of driver-assistance systems such as adaptive cruise control, lane departure warning, and automatic emergency braking. Optional extras included a Bang & Olufsen premium sound system, a head-up display, and matrix LED headlights. Interior trim levels varied, with options for different wood or aluminum inlays. The standard seats provided excellent support and comfort, with optional sport seats available for a more aggressive feel.
Chassis & Braking
The A4 B9.5 features a sophisticated chassis design. The front suspension utilizes a five-link independent setup, while the rear employs a multi-link configuration. This provides a good balance between ride comfort and handling precision. The 50 TDI variant typically came with larger brakes than the entry-level models, featuring ventilated discs on all four wheels. The steering is a speed-sensitive electromechanical system, providing precise and responsive control. Stabilizer bars are fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The Audi A4 50 TDI quattro tiptronic was generally well-received by automotive critics. It was praised for its powerful engine, refined transmission, comfortable ride, and advanced technology. Compared to its rivals, such as the BMW 530d and Mercedes-Benz E350d, the A4 50 TDI offered a compelling combination of performance, luxury, and practicality. Fuel economy was also a strong point, with combined figures ranging from 5.7-6.0 l/100 km (41.3 – 39.2 US mpg). Reliability reports have been generally positive, although, as with any modern diesel, the diesel particulate filter (DPF) and AdBlue system require regular maintenance.
Legacy
The Audi A4 B9.5 50 TDI quattro tiptronic represents a high point in the development of Audi’s diesel engine technology. The 3.0-liter V6 TDI is known for its durability and refinement. On the used car market, these models hold their value well due to their performance and equipment levels. However, potential buyers should be aware of the maintenance requirements of the diesel engine and associated systems. The combination of a powerful engine, all-wheel drive, and a luxurious interior makes the 50 TDI a desirable option for those seeking a premium compact executive sedan.
