2020-2024 Audi A4 Avant (B9 8W facelift ) 35 TDI (163 Hp) Mild Hybrid S tronic

The Audi A4 Avant 35 TDI (163 hp) Mild Hybrid S tronic, produced from September 2020 to 2024, represents a significant iteration within the B9 8W facelift generation of Audi’s popular compact executive estate. Positioned as a fuel-efficient and technologically advanced option, this variant catered to buyers seeking a balance between performance, practicality, and reduced emissions. It occupied a mid-range position in the A4 Avant lineup, slotting below the more powerful 40 TDI and 45 TDI models, and above the entry-level petrol variants. This model was primarily marketed in Europe and other regions where diesel engines and station wagons remain highly popular.

Technical Specifications

Powertrain & Engine Architecture

At the heart of the A4 Avant 35 TDI lies the Volkswagen Group’s DEZE engine, a 2.0-liter inline-four cylinder diesel engine. This engine is a member of the EA288 family, known for its robust construction and efficiency. The DEZE utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A single turbocharger with an intercooler provides forced induction, boosting power and torque. The engine’s output of 163 horsepower at 3250-4200 rpm and 370 Nm (272.9 lb-ft) of torque between 1500-3000 rpm provides a good balance of performance and economy. Crucially, this variant incorporates a 48V mild hybrid system. This system utilizes a belt starter generator (BSG) and a small lithium-ion battery to enable features like extended start-stop operation, coasting with engine off, and a slight power boost during acceleration. The transmission is a seven-speed S tronic dual-clutch automatic, known for its quick and smooth gear changes. This transmission is a key component in maximizing fuel efficiency and providing a responsive driving experience.

Driving Characteristics

The A4 Avant 35 TDI S tronic delivers a refined and comfortable driving experience. While not overtly sporty, the engine provides ample power for everyday driving and overtaking maneuvers. The S tronic transmission contributes to brisk acceleration, with a 0-62 mph (0-100 km/h) time of 8.5 seconds. The mild hybrid system subtly enhances responsiveness, particularly during initial acceleration. Compared to the more powerful 40 TDI and 45 TDI models, the 35 TDI feels less urgent, but its lower weight and efficient powertrain contribute to better fuel economy. The gear ratios are tuned for efficiency, with taller gearing in higher gears to reduce engine speed at cruising speeds. The front-wheel-drive configuration provides good traction in most conditions, although it may exhibit some torque steer under hard acceleration. The steering is precise and well-weighted, offering a connected feel to the road.

Equipment & Trim Levels

The A4 Avant 35 TDI typically came well-equipped, reflecting Audi’s reputation for interior quality and technology. Standard features generally included Audi’s MMI infotainment system with a 7-inch touchscreen display (larger screens were often optional), automatic climate control, a leather-wrapped steering wheel, and cloth upholstery. Safety features such as ABS, electronic stability control, and multiple airbags were standard. Optional extras included a virtual cockpit digital instrument cluster, a premium sound system, leather upholstery, heated seats, and a suite of driver assistance systems like adaptive cruise control and lane keeping assist. Trim levels varied by market, but generally offered progressive upgrades in terms of interior materials, exterior styling, and technology features.

Chassis & Braking

The A4 Avant’s chassis utilizes a sophisticated independent suspension setup, with multi-link suspension at both the front and rear. This provides a comfortable ride quality while maintaining good handling characteristics. The suspension is tuned to prioritize comfort, but still offers a reasonable degree of body control. The braking system consists of ventilated discs at the front and solid discs at the rear. ABS (Anti-lock Braking System) and electronic stability control are standard, providing enhanced safety and control. The steering system is a rack-and-pinion setup with electric power assistance, offering precise and responsive steering feel.

Market Reception & Comparison

The A4 Avant 35 TDI S tronic was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. However, some reviewers noted that the engine lacked the outright performance of the more powerful TDI variants. Compared to the 40 TDI, the 35 TDI offered lower running costs but sacrificed some performance. Against competitors like the BMW 3 Series Touring and Mercedes-Benz C-Class Estate, the A4 Avant 35 TDI held its own in terms of refinement, technology, and practicality. Its fuel economy figures were competitive, and its mild hybrid system provided a slight advantage in terms of emissions.

Legacy

The DEZE engine, in its various iterations, has proven to be a reliable and durable powertrain. The mild hybrid system, while relatively simple, has also demonstrated good long-term reliability. In the used car market, the A4 Avant 35 TDI S tronic represents a sensible and practical choice. Maintenance costs are generally reasonable, and parts availability is good. However, as with any diesel vehicle, it’s important to ensure that the diesel particulate filter (DPF) has been properly maintained. The combination of fuel efficiency, practicality, and Audi’s build quality ensures that this variant remains a popular choice for buyers seeking a well-rounded compact executive estate.