The Audi A4 (B9 8W) 2.0 TDI 190 hp quattro S tronic represents a significant iteration of Audi’s popular executive sedan, produced from 2015 to 2018. Positioned as a mid-range offering within the B9 A4 lineup, this variant combined a potent turbocharged diesel engine with Audi’s renowned quattro all-wheel-drive system and a seven-speed S tronic dual-clutch transmission. It aimed to deliver a balance of performance, efficiency, and all-weather capability, appealing to buyers seeking a refined and practical luxury vehicle. The B9 generation marked a substantial leap forward in technology and design compared to its B8 predecessor, incorporating Audi’s latest advancements in infotainment, driver assistance systems, and chassis engineering.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 (B9 8W) |
| Type (Engine) | 2.0 TDI (190 Hp) quattro S tronic |
| Start of production | 2015 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 5.1-5.3 l/100 km (46.1 – 44.4 US mpg) |
| Fuel consumption (extra urban) | 4.0-4.3 l/100 km (58.8 – 54.7 US mpg) |
| Fuel consumption (combined) | 4.4-4.6 l/100 km (53.5 – 51.1 US mpg) |
| CO2 emissions | 114-121 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.2 sec |
| Acceleration 0 – 62 mph | 7.2 sec |
| Acceleration 0 – 60 mph | 6.8 sec |
| Maximum speed | 235 km/h (146.02 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.3 kg/Hp |
| Weight-to-torque ratio | 3.9 kg/Nm |
| Power | 190 Hp @ 3800-4200 rpm |
| Torque | 400 Nm @ 1750-3000 rpm (295.02 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DETA |
| 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 | 15.5:1 |
| 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 | 1575 kg (3472.28 lbs.) |
| Max. weight | 2160 kg (4761.98 lbs.) |
| Max load | 585 kg (1289.7 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 965 l (34.08 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 | 4726 mm (186.06 in.) |
| Width | 1842 mm (72.52 in.) |
| Width including mirrors | 2022 mm (79.61 in.) |
| Height | 1427 mm (56.18 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 | 1026 mm (40.39 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle | 11.6 m (38.06 ft.) |
| Drivetrain Architecture | 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 |
INTRODUCTION
The Audi A4 (B9) 2.0 TDI 190 hp quattro S tronic, launched in 2015, was a key component of Audi’s strategy to offer a compelling blend of performance and efficiency in the compact executive segment. Built on the Volkswagen Group’s MLB Evo platform (specifically the 1HX0/A3 variant), this model benefited from a lighter, more rigid chassis compared to its predecessor. The 2.0 TDI engine, coupled with the quattro all-wheel-drive system and the S tronic transmission, positioned this A4 as a practical and capable all-season vehicle, particularly popular in European markets where diesel engines and all-wheel drive are highly valued. It sat comfortably in the middle of the A4 range, offering more performance than the entry-level 1.4 TFSI models but remaining more economical than the higher-powered 3.0 TDI variants.
Powertrain & Engine Architecture
At the heart of this A4 variant lies the Volkswagen Group’s 2.0-liter four-cylinder diesel engine, designated DETA. This engine is a common-rail direct injection diesel, utilizing piezo injectors for precise fuel delivery. The DETA engine produces 190 horsepower at 3800-4200 rpm and a substantial 400 Nm (295 lb-ft) of torque between 1750 and 3000 rpm. A single turbocharger with an intercooler provides forced induction, enhancing both power and torque output. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The S tronic seven-speed dual-clutch transmission is a crucial element of this powertrain. It offers rapid, seamless gear changes and contributes to the car’s overall efficiency. The S tronic operates in both automatic and manual modes, allowing the driver to select gears via steering wheel-mounted paddles or the gear selector.
Driving Characteristics
The 2.0 TDI 190 hp quattro S tronic A4 delivers a refined and capable driving experience. The engine provides ample torque for effortless acceleration and strong mid-range performance. While not as overtly sporty as some of its rivals, the A4 offers a smooth and responsive power delivery. The S tronic transmission contributes to this, providing quick and precise gear changes. The quattro all-wheel-drive system enhances traction and stability, particularly in adverse weather conditions. Compared to the manual transmission versions of the same engine, the S tronic offers a more relaxed driving experience, especially in urban traffic. However, some drivers may prefer the greater engagement of a manual gearbox. Against the higher-output 3.0 TDI models, the 2.0 TDI offers a noticeable trade-off in outright performance, but it compensates with improved fuel economy and lower running costs.
Equipment & Trim Levels
The A4 2.0 TDI 190 hp quattro S tronic typically came well-equipped, reflecting its position as a mid-range model. Standard features often included Audi’s MMI infotainment system with a 7-inch display, tri-zone automatic climate control, leather upholstery, and a suite of driver assistance systems such as Audi Drive Select. Optional extras included a larger MMI display, a Bang & Olufsen sound system, a head-up display, and adaptive cruise control. Interior trim levels varied, with options for different wood or aluminum inlays. Exterior styling cues were generally consistent across the B9 A4 range, with subtle differences in wheel designs and chrome accents depending on the specific trim package.
Chassis & Braking
The B9 A4 features a sophisticated chassis design, utilizing independent multi-link suspension at both the front and rear axles. This setup provides a comfortable ride quality while maintaining good handling characteristics. The quattro all-wheel-drive system distributes power between the front and rear wheels as needed, optimizing traction and stability. Braking duties are handled by ventilated disc brakes on all four wheels. The A4 2.0 TDI 190 hp typically featured a slightly smaller rear brake rotor compared to the higher-performance models. Anti-lock braking system (ABS) and electronic stability control (ESC) are standard safety features.
Market Reception & Comparison
The Audi A4 2.0 TDI 190 hp quattro S tronic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and sophisticated interior. Fuel economy was a particular strength, with combined fuel consumption figures ranging from 4.4 to 4.6 l/100 km (53.5 – 51.1 US mpg). Compared to rivals such as the BMW 320d and Mercedes-Benz C220d, the A4 offered a compelling combination of performance, efficiency, and technology. Some critics noted that the steering lacked a bit of feel, but overall, the A4 was considered a highly competitive offering in the executive sedan segment.
Legacy
The 2.0 TDI engine and S tronic transmission combination proved to be a reliable and durable powertrain in the B9 A4. While diesel engines have faced increased scrutiny in recent years, the DETA engine is generally considered to be robust and capable of high mileage with proper maintenance. The S tronic transmission, while requiring occasional servicing, is also known for its longevity. On the used car market, the A4 2.0 TDI 190 hp quattro S tronic remains a popular choice, offering a good balance of value, practicality, and driving enjoyment. Its all-wheel-drive system and fuel efficiency continue to make it an attractive option for buyers seeking a capable and economical executive sedan.
