The 2020 Audi S4 is a compact luxury sport sedan that blends everyday comfort with serious performance, slotting above the A4 and aimed at drivers who want quick acceleration without giving up refinement. This model is part of the B9 generation (introduced for 2018 in the U.S.), and for 2020 it continues the formula with a turbocharged V6, standard all-wheel drive, and a premium cabin. It competes directly with sporty rivals like the BMW M340i and Mercedes-AMG C 43, offering a more understated look with strong all-weather capability. It’s ideal for commuters and enthusiasts who want a single do-it-all sedan for year-round driving.

1) Turbocharged 3.0L V6 performance: The 2020 S4 uses a 3.0-liter turbocharged V6 (Audi’s EA839 family) paired with an 8-speed automatic transmission and quattro all-wheel drive, delivering quick launches and strong mid-range pull. 2) Standard quattro all-wheel drive: Excellent traction in rain and snow, plus confident cornering when driving spiritedly. 3) Sport-tuned chassis: The S4 includes sport suspension tuning and performance-oriented braking feel, with available adaptive damping on many builds for a wider range between comfort and sport. 4) Premium interior and tech: Known for solid materials, supportive sport seats, and Audi’s modern infotainment with smartphone integration on most configurations. 5) Driver assistance availability: Many 2020 S4s were optioned with advanced safety and convenience features such as adaptive cruise control and lane-keeping aids, depending on package and trim configuration.

Shoppers searching “2020 Audi S4 reliability” should know the S4 is generally solid for a modern German sport sedan, but it’s not immune to a few repeat complaints. The key is staying on top of maintenance and verifying service history. 1) Water pump/thermostat housing coolant leaks: A commonly discussed issue across Audi/VW turbo engines is coolant seepage from the water pump or thermostat housing area. Some owners report coolant smell, low coolant warnings, or visible residue. This can show up anywhere from 20,000 to 60,000 miles, sometimes earlier depending on heat cycles and driving conditions. 2) PCV system and oil consumption concerns: The crankcase ventilation (PCV) system can contribute to rough idle, whistling noises, or increased oil usage if it begins to fail. While not every 2020 S4 has oil consumption problems, it’s a common topic in “2020 Audi S4 common issues” searches. Pay attention to warning lights, drivability changes, or frequent top-offs. 3) Infotainment and electronics glitches: Some owners report intermittent MMI/infotainment bugs such as Bluetooth dropouts, frozen screens, or sensor warnings that clear after restart. These issues are often software-related but can be frustrating. Checking for software updates and verifying that recalls or technical service updates were completed can help. 4) Suspension wear and alignment sensitivity: With sporty tuning and low-profile tires on many S4s, expect faster wear on front control arm bushings, tires, and alignment-related components compared with a standard A4—especially on rough roads. Uneven tire wear or steering vibration can show up around 30,000 to 60,000 miles depending on driving style and wheel/tire setup.