The Audi A4 Avant (B9 8W) 2.0 TDI 150 hp S tronic, produced from 2015 to 2018, represents a significant iteration of Audi’s popular compact executive estate. Positioned as a mid-range offering within the B9 A4 Avant lineup, this variant balanced fuel efficiency, practicality, and a comfortable driving experience. It was a key model for Audi in the European market, where wagons (Avants in Audi terminology) hold a substantial share of the automotive landscape. This model utilized the Volkswagen Group’s MLB Evo platform, offering advancements in weight reduction and packaging compared to its predecessor.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 Avant (B9 8W) |
| Type (Engine) | 2.0 TDI (150 Hp) 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 l/100 km (47 US mpg, 56.5 UK mpg, 20 km/l) |
| Fuel consumption (extra urban) | 3.8 l/100 km (61.9 US mpg, 74.3 UK mpg, 26.3 km/l) |
| Fuel consumption (combined) | 4.2 l/100 km (56 US mpg, 67.3 UK mpg, 23.8 km/l) |
| CO2 emissions | 109 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9 sec |
| Acceleration 0 – 62 mph | 9 sec |
| Acceleration 0 – 60 mph | 8.6 sec |
| Maximum speed | 213 km/h (132.35 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 10.2 kg/Hp, 98.4 Hp/tonne |
| Weight-to-torque ratio | 4.8 kg/Nm, 209.8 Nm/tonne |
| Power | 150 Hp @ 3250-4200 rpm |
| Power per litre | 76.2 Hp/l |
| Torque | 320 Nm @ 1500-3250 rpm (236.02 lb.-ft. @ 1500-3250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DEUA |
| Engine displacement | 1968 cm3 (120.09 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 81 mm (3.19 in.) |
| Piston Stroke | 95.5 mm (3.76 in.) |
| Compression ratio | 16.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4.7 l (4.97 US qt | 4.14 UK qt) |
| Kerb Weight | 1525 kg (3362.05 lbs.) |
| Max. weight | 2145 kg (4728.92 lbs.) |
| Max load | 620 kg (1366.87 lbs.) |
| Trunk (boot) space – minimum | 505 l (17.83 cu. ft.) |
| Trunk (boot) space – maximum | 1510 l (53.33 cu. ft.) |
| Fuel tank capacity | 40 l (10.57 US gal | 8.8 UK gal) |
| Max. roof load | 90 kg (198.42 lbs.) |
| Permitted trailer load with brakes (8%) | 1900 kg (4188.78 lbs.) |
| Permitted trailer load with brakes (12%) | 1700 kg (3747.86 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) | 0.30 |
| Minimum turning circle | 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 |
| Wheel rims size | 7J x 16 |
INTRODUCTION
The Audi A4 Avant (B9 8W) 2.0 TDI 150 hp S tronic, launched in 2015, was a core member of Audi’s fourth-generation A4 Avant family. Built on the MLB Evo platform, it offered a blend of practicality, efficiency, and Audi’s signature refinement. This particular variant was aimed at buyers seeking a comfortable and economical long-distance cruiser, or those needing the versatility of a wagon without the higher running costs of the more powerful engine options. The B9 generation represented a significant step forward in terms of technology and design for the A4, and the 2.0 TDI 150 hp S tronic model was a popular choice in many European markets.
Powertrain & Engine Architecture
At the heart of this A4 Avant lies the Volkswagen Group’s 2.0-liter four-cylinder diesel engine, designated DEUA. This engine is a turbocharged common-rail direct injection diesel, producing 150 horsepower at 3250-4200 rpm and 320 Nm (236 lb-ft) of torque between 1500-3250 rpm. The engine features a single turbocharger with an intercooler to improve efficiency and power output. The fuel injection system utilizes piezo injectors for precise fuel delivery and optimized combustion. The engine also incorporates a diesel particulate filter (DPF) to meet stringent Euro 6 emissions standards. Paired with this engine is Audi’s 7-speed S tronic dual-clutch transmission. This transmission offers quick and smooth gear changes, contributing to both performance and fuel economy. The S tronic transmission is known for its efficiency and responsiveness, providing a more engaging driving experience than a traditional torque-converter automatic.
Driving Characteristics
The 2.0 TDI 150 hp S tronic A4 Avant delivers a composed and refined driving experience. While not overtly sporty, it provides ample power for everyday driving and comfortable highway cruising. Acceleration from 0-60 mph takes approximately 8.6 seconds, and top speed is rated at 132.35 mph. The S tronic transmission keeps the engine in its optimal power band, resulting in smooth and predictable acceleration. Compared to the more powerful 2.0 TDI variants (190 hp) or the petrol-powered models, this version feels less urgent, but it compensates with significantly improved fuel economy. The gear ratios are well-chosen for both city and highway driving, and the transmission is generally responsive. The front-wheel-drive configuration provides good traction in most conditions, although it can exhibit some torque steer under hard acceleration.
Equipment & Trim Levels
The 2.0 TDI 150 hp S tronic A4 Avant typically came equipped with a generous level of standard features. These included Audi’s MMI infotainment system with a 7-inch display, automatic climate control, power windows and mirrors, and alloy wheels. Safety features such as ABS, electronic stability control, and multiple airbags were also standard. Optional extras included upgrades to the MMI system (larger screen, navigation), leather upholstery, a panoramic sunroof, and various driver assistance systems like adaptive cruise control and lane departure warning. Trim levels varied by market, but generally offered packages that added cosmetic enhancements, upgraded interior materials, and additional convenience features.
Chassis & Braking
The B9 A4 Avant features a sophisticated chassis design. Both front and rear suspension utilize a multi-link setup, providing a comfortable ride and precise handling. The suspension is tuned to prioritize comfort, but still offers good body control in corners. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. The ABS system is standard, along with electronic brake-force distribution and brake assist. The steering is an electromechanical power steering system, offering a precise and responsive feel.
Market Reception & Comparison
The Audi A4 Avant 2.0 TDI 150 hp S tronic was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. Critics noted that while it wasn’t the most exciting car to drive, it was a practical and well-rounded option for buyers seeking a premium estate. Compared to the higher-output TDI variants, this model offered a more affordable entry point into the A4 Avant range, with lower running costs. However, some reviewers felt that the engine could be a bit noisy under hard acceleration. Against competitors like the BMW 3 Series Touring and Mercedes-Benz C-Class Estate, the A4 Avant 2.0 TDI 150 hp S tronic held its own, offering a compelling combination of features and value.
Legacy
The 2.0 TDI engine, in various iterations, has proven to be a reliable and durable powertrain. However, like all modern diesel engines, it’s important to ensure regular maintenance, including timely DPF regeneration and oil changes. The S tronic transmission is generally reliable, but can be susceptible to issues if not serviced properly. In the used car market, the A4 Avant 2.0 TDI 150 hp S tronic represents a good value proposition, offering a comfortable and economical driving experience. Well-maintained examples continue to be sought after by buyers looking for a practical and refined estate car.



