The Audi A4 Avant 35 TFSI Mild Hybrid S tronic, produced from 2019 to 2020, represents a key iteration of the B9 (8W) generation A4 Avant facelift. Positioned as a mid-range offering within the A4 Avant lineup, this variant combined a 2.0-liter turbocharged four-cylinder engine with a 48-volt mild hybrid system and Audi’s seven-speed S tronic dual-clutch transmission. It aimed to balance performance, fuel efficiency, and practicality for the European market, where the A4 Avant is a popular choice for families and business users. This model was designed to appeal to buyers seeking a more economical and technologically advanced option compared to the higher-output engines available in the A4 range.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 Avant (B9 8W, facelift 2019) |
| Type (Engine) | 35 TFSI (150 Hp) Mild Hybrid S tronic |
| Start of production | 2019 |
| End of production | 2020 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 6.8-7.4 l/100 km (34.6 – 31.8 US mpg) |
| CO2 emissions (WLTP) | 154-170 g/km |
| Fuel consumption (urban) | 7.2-7.5 l/100 km (32.7 – 31.4 US mpg) |
| Fuel consumption (extra urban) | 4.7-5.2 l/100 km (50 – 45.2 US mpg) |
| Fuel consumption (combined) | 5.6-6.0 l/100 km (42 – 39.2 US mpg) |
| CO2 emissions | 128-138 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.2 sec |
| Acceleration 0 – 62 mph | 9.2 sec |
| Acceleration 0 – 60 mph | 8.7 sec |
| Maximum speed | 220 km/h (136.7 mph) |
| Emission standard | Euro 6d – TEMP – EVAP – ISC |
| Weight-to-power ratio | 10 kg/Hp |
| Weight-to-torque ratio | 5.6 kg/Nm |
| Power | 150 Hp @ 3900-6000 rpm |
| Torque | 270 Nm @ 1350-3900 rpm (199.14 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DMSB |
| Engine displacement | 1984 cm3 (121.07 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5.2 l (5.49 US qt | 4.58 UK qt) |
| Coolant capacity | 10 l (10.57 US qt | 8.8 UK qt) |
| Kerb Weight | 1500 kg (3306.93 lbs.) |
| Max. weight | 2100 kg (4629.71 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space – minimum | 495 l (17.48 cu. ft.) |
| Fuel tank capacity | 54 l (14.27 US gal | 11.88 UK gal) |
| Max. roof load | 90 kg (198.42 lbs.) |
| Permitted trailer load with brakes (8%) | 1700 kg (3747.86 lbs.) |
| Permitted trailer load with brakes (12%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 80 kg (176.37 lbs.) |
| Length | 4762 mm (187.48 in.) |
| Width | 1847 mm (72.72 in.) |
| Width including mirrors | 2022 mm (79.61 in.) |
| Height | 1435 mm (56.5 in.) |
| Wheelbase | 2820 mm (111.02 in.) |
| Front track | 1572 mm (61.89 in.) |
| Rear track | 1555 mm (61.22 in.) |
| Front overhang | 899 mm (35.39 in.) |
| Rear overhang | 1043 mm (41.06 in.) |
| Minimum turning circle | 11.6 m (38.06 ft.) |
| Drivetrain Architecture | ICE and electric motor drive front wheels |
| Drive wheel | Front wheel drive |
| Number of gears | 7 |
| Gearbox type | Automatic transmission S tronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
Powertrain & Engine Architecture
The heart of the A4 Avant 35 TFSI is the DMSB engine, a 1.984-liter (121.07 cubic inches) inline-four cylinder gasoline engine. This engine utilizes direct fuel injection and is coupled with a single turbocharger and intercooler to deliver a balance of power and efficiency. The engine produces 150 horsepower at 3,900-6,000 rpm and 270 Nm (199.14 lb-ft) of torque between 1,350 and 3,900 rpm. The ‘35 TFSI’ designation reflects Audi’s power classification system. Crucially, this variant incorporates a 48-volt mild hybrid system. This system features a belt starter generator (BSG) and a small lithium-ion battery. The BSG allows for extended engine-off coasting, regenerative braking to recoup energy, and a smoother start-stop system. The seven-speed S tronic dual-clutch transmission provides quick and efficient gear changes, contributing to both performance and fuel economy. This transmission is known for its responsiveness and ability to seamlessly shift between gears.
Driving Characteristics
The 150 hp and 270 Nm of torque provide adequate performance for everyday driving. Acceleration from 0 to 100 km/h (0-62 mph) takes approximately 9.2 seconds. While not a sports-oriented setup, the engine delivers sufficient power for overtaking and highway cruising. The S tronic transmission contributes to a smooth driving experience, with quick and precise gear changes. Compared to the more powerful 40 TFSI or 45 TFSI variants, the 35 TFSI feels less urgent in its acceleration. However, the mild hybrid system helps to mitigate some of the performance deficit by providing a small boost during acceleration and enabling coasting functionality. The gear ratios are tuned for fuel efficiency, meaning the engine may feel slightly strained when pushed hard. The front-wheel-drive configuration provides good traction in most conditions, but can exhibit some torque steer under hard acceleration.
Equipment & Trim Levels
The A4 Avant 35 TFSI typically came equipped with a generous amount of standard features. These included Audi’s MMI infotainment system with a 7-inch touchscreen display, tri-zone automatic climate control, and a leather-wrapped multifunction steering wheel. Standard safety features included Audi pre sense basic, lane departure warning, and automatic emergency braking. Interior upholstery was typically cloth, with leather options available as an upgrade. Optional extras included a larger touchscreen display, a virtual cockpit digital instrument cluster, a premium sound system, and various driver assistance packages. Trim levels varied slightly depending on the market, but generally offered progressive upgrades in terms of interior materials, exterior styling, and technology features.
Chassis & Braking
The A4 Avant 35 TFSI utilizes an independent multi-link suspension system at both the front and rear axles. This suspension setup provides a comfortable ride quality and good handling characteristics. The front suspension features ventilated disc brakes, while the rear brakes are solid discs. ABS (Anti-lock Braking System) is standard. The chassis is tuned to provide a balance between comfort and handling, making it suitable for both city driving and longer journeys. The steering is electrically assisted, providing a light and precise feel.
Market Reception & Comparison
The A4 Avant 35 TFSI Mild Hybrid S tronic was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. However, some critics noted that the engine lacked the outright performance of the higher-output variants. Compared to the 40 TFSI, the 35 TFSI offered lower running costs but sacrificed some performance. The mild hybrid system was seen as a positive addition, contributing to improved fuel economy and a smoother driving experience. Against competitors like the BMW 3 Series Touring and Mercedes-Benz C-Class Estate, the A4 Avant 35 TFSI offered a compelling combination of practicality, technology, and refinement.
Legacy
The DMSB engine, in its various iterations, has proven to be a reliable and durable powerplant. The mild hybrid system, while relatively new at the time of its introduction, has also demonstrated good long-term reliability. In the used car market, the A4 Avant 35 TFSI represents a good value proposition for buyers seeking a practical and efficient estate car. Maintenance costs are generally reasonable, and parts availability is good. The combination of a comfortable ride, refined interior, and decent fuel economy makes it a popular choice among used car buyers.
