The Audi A4 Avant (B9 8W) 3.0 TDI V6 quattro S tronic represents a compelling blend of performance, practicality, and technology within the fifth generation of Audi’s popular A4 series. Produced from 2015 to 2018, this variant occupied a premium position in the A4 Avant lineup, offering a significant step up in power and refinement compared to lower-spec engines. It was primarily marketed in Europe and other regions where diesel engines and station wagons (known as ‘Avants’ in Audi terminology) remained highly popular. This model leveraged Audi’s quattro all-wheel-drive system and the sophisticated S tronic dual-clutch transmission to deliver a dynamic driving experience.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 Avant (B9 8W) |
| Type (Engine) | 3.0 TDI V6 (218 Hp) quattro S tronic |
| Start of production | 2015 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 5.2 – 5.0 l/100 km (45.2 – 47 US mpg, 54.3 – 56.5 UK mpg, 19.2 – 20 km/l) |
| Fuel consumption (extra urban) | 4.8 – 4.4 l/100 km (49 – 53.5 US mpg, 58.9 – 64.2 UK mpg, 20.8 – 22.7 km/l) |
| Fuel consumption (combined) | 4.9 – 4.7 l/100 km (48 – 50 US mpg, 57.6 – 60.1 UK mpg, 20.4 – 21.3 km/l) |
| CO2 emissions | 129 – 123 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 6.4 sec |
| Acceleration 0 – 62 mph | 6.4 sec |
| Acceleration 0 – 60 mph | 6.1 sec |
| Maximum speed | 245 km/h (152.24 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 7.6 kg/Hp, 131.3 Hp/tonne |
| Weight-to-torque ratio | 4.2 kg/Nm, 241 Nm/tonne |
| Power | 218 Hp @ 4000-5000 rpm |
| Torque | 400 Nm @ 1250-3750 rpm (295.02 lb.-ft. @ 1250-3750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CSWB |
| 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 |
| Engine oil capacity | 6.1 l (6.45 US qt | 5.37 UK qt) |
| Kerb Weight | 1660 kg (3659.67 lbs.) |
| Max. weight | 2250 kg (4960.4 lbs.) |
| Max load | 590 kg (1300.73 lbs.) |
| Trunk (boot) space – minimum | 505 l (17.83 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%) | 2000 kg (4409.25 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 80 kg (176.37 lbs.) |
| Length | 4725 mm (186.02 in.) |
| Width | 1842 mm (72.52 in.) |
| Width including mirrors | 2022 mm (79.61 in.) |
| Height | 1434 mm (56.46 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 | 1025 mm (40.35 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle (turning diameter) | 11.6 m (38.06 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| 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 | 225/50 R17 |
| Wheel rims size | 7.5J x 17 |
INTRODUCTION
The Audi A4 Avant (B9 8W) 3.0 TDI V6 quattro S tronic, launched in 2015, represented a sophisticated offering within Audi’s A4 range. Built on the Volkswagen Group’s MLB Evo platform (1HX0/A3), the B9 generation A4 brought advancements in lightweight construction, technology, and refinement. The 3.0 TDI V6 quattro S tronic variant was positioned as a premium choice, appealing to buyers seeking strong performance, all-weather capability, and a spacious, practical wagon body style. It served as a step up from the more common 2.0 TDI and 1.4 TFSI engines, offering a more powerful and refined driving experience.
Powertrain & Engine Architecture
At the heart of this A4 Avant lies the 3.0-liter TDI V6 engine, designated with the engine code CSWB. This engine is a turbocharged diesel, featuring a common rail direct injection system and four valves per cylinder. The engine produces 218 horsepower at 4000-5000 rpm and a substantial 400 Nm (295 lb-ft) of torque available from a low 1250 rpm, sustaining through 3750 rpm. This broad torque curve contributes to strong acceleration and effortless cruising. The turbocharger, coupled with an intercooler, optimizes air intake for increased power and efficiency. The engine’s longitudinal mounting allows for efficient integration with Audi’s quattro all-wheel-drive system.
The ‘S tronic’ transmission is a seven-speed dual-clutch gearbox. This transmission offers rapid, smooth gear changes and contributes to the car’s overall efficiency. Unlike a traditional automatic, the S tronic pre-selects the next gear, minimizing interruption in power delivery. The quattro system utilizes a self-locking center differential, distributing torque between the front and rear axles as needed to maximize traction.
Driving Characteristics
The 3.0 TDI V6 with the S tronic transmission delivers a noticeably more responsive and refined driving experience compared to lower-powered A4 variants. The abundant torque provides strong acceleration in everyday driving situations, and the S tronic gearbox ensures quick and seamless shifts. While not a sports car, the A4 Avant 3.0 TDI offers a confident and engaging driving experience. The quattro all-wheel-drive system provides excellent grip in all weather conditions, enhancing stability and control. The gear ratios are tuned for a balance of performance and fuel economy, with taller gears for relaxed highway cruising and shorter gears for quicker acceleration. Compared to a manual transmission, the S tronic offers convenience and efficiency, though some enthusiasts may miss the direct engagement of a manual gearbox.
Equipment & Trim Levels
The 3.0 TDI V6 quattro S tronic typically came equipped with a generous level of standard features. These included Audi’s MMI infotainment system with a central display screen, three-zone automatic climate control, leather upholstery, and a suite of driver-assistance systems such as parking sensors and cruise control. Optional extras included features like a Bang & Olufsen sound system, a head-up display, adaptive cruise control, and a panoramic sunroof. Trim levels varied by market, but generally, this engine was offered in higher-spec trims like ‘Sport’ or ‘S line’, which added sporty styling cues and enhanced equipment levels.
Chassis & Braking
The A4 Avant’s chassis features an independent multi-link suspension at both the front and rear, providing a comfortable ride and precise handling. The suspension is tuned to balance comfort and control, offering a composed ride even on uneven surfaces. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control (ESC) system and anti-lock braking system (ABS) work in conjunction to enhance safety and stability. The weight distribution is well-balanced, contributing to the car’s neutral handling characteristics.
Market Reception & Comparison
The Audi A4 Avant 3.0 TDI V6 quattro S tronic was generally well-received by automotive critics. It was praised for its powerful engine, refined transmission, comfortable ride, and practical wagon body style. Compared to the 2.0 TDI variants, the 3.0 TDI offered a significant performance upgrade, but at a higher price point. The 3.0 TDI also offered better refinement and a more luxurious feel. Fuel economy was respectable for a V6 diesel, although not as high as the 2.0 TDI models. Reliability was generally good, although diesel particulate filter (DPF) issues could occur with infrequent long-distance driving.
Legacy
The 3.0 TDI V6 engine proved to be a robust and reliable powertrain when properly maintained. The S tronic transmission, while sophisticated, requires regular servicing to ensure smooth operation. In the used car market, the A4 Avant 3.0 TDI V6 quattro S tronic remains a desirable option for buyers seeking a premium, practical, and capable wagon. Its combination of performance, refinement, and all-weather capability continues to appeal to a wide range of drivers. However, potential buyers should be aware of the potential for DPF issues and the importance of adhering to the manufacturer’s recommended maintenance schedule.
