2020 Audi S4 Avant TDI Photos, engines & full specs

Audi introduced the fifth generation of the A4 lineup in 2015 and refreshed it in 2019 for the 2020 model year, and that update affected the entire range, including the TDI version of the S4 Avant.

The S4 was a known nameplate in the German automaker's inventory since 1997, when a 2.7-liter turbocharged V6 powered the first generation of this monicker. Further developments followed, and up until the 2017 model year, all the S4s, regardless of their body shapes, were fitted with gasoline engines. Then, in 2019, the four-ring badged brand made a split decision: a turbocharged V6 for the North American market and a mild-hybrid turbo diesel for the European customers. Surprisingly, both versions were similar in terms of performance, albeit the oil burner boasted a much better fuel efficiency than its spark-ignited sibling that Audi sent across the pond.

Audi refreshed the entire A4 lineup, so the 2020 S4 Avant also got a new front fascia. It sported new LED headlights that sported a daytime running light signature on their top featuring five small blocks and an L-shaped sixth one on the upper outer corner. The singleframe signature grille was adorned by a honeycomb mesh pattern and sported the S4 silver and red badge. On the lower side of the bumper, the automaker added a narrow second grille and massive side scoops that hosted the fog lamps.

From its profile, the S4 Avant revealed its lower ground clearance compared to its non-S sibling. A set of aerodynamically profiled side sills emphasized the car's sporty look, while the standard 18-inch alloy wheels featured a unique design. As an option, customers could fit the car with a set of 19" wheels. The longroof version of the S4 featured black door mirrors as a distinctive styling element compared to the non-S version. Finally, at the back, Audi installed a quad-exhaust system underneath the bumper, with two pairs of chromed tips on each side of the vehicle.

While the exterior was subtle compared to the rest of the A4 Avant lineup, the interior got essential upgrades. As a result, customers could enjoy the high-bolstered front bucket seats, which were available with S4 lettering on their seatback. Also, the flat-bottom steering wheel was adorned on its lower side by the same logo. Fronting the driver was a digital instrument cluster known as the Audi Virtual Cockpit, while atop the center stack, the automaker included a touchscreen for the infotainment system. Behind, on the split-folding (40/20/40) bench seat where three passengers could sit. The trunk could hold (17.8 cu ft) but could be expanded to 1,510 liters (53.3 cu ft) when the rear bench seat was folded flat.

Under the hood, Audi installed a turbocharged V6 diesel, helped by an electronic compressor and a belt-driven starter generator, which could also bring some power to the table when needed. As a result, the S4 Avant TDI boasted 347 PS (342 hp), just seven less than the gas-powered S4 sold in North America.