2020 Audi S4

The 2020 Audi S4 is a performance-oriented sedan known for its blend of luxury and sporty driving dynamics. It is equipped with a 3.0-liter turbocharged V6 engine producing 349 horsepower and 369 lb-ft of torque. All S4s are equipped with an 8-speed automatic transmission. Owners generally praise the S4 for its quick acceleration, comfortable interior, and stylish design. Common complaints include a somewhat firm ride (especially with the optional sport suspension), limited rear-seat legroom, and the infotainment system’s learning curve.

Engine

3.0L Turbocharged V6

• Coolant Leak
  • Description/Symptoms: Coolant leaks are reported near the thermostat housing or water pump. The low coolant light may illuminate. A sweet smell may be present.
  • Solution: Replacement of the thermostat housing or water pump and associated seals/gaskets.
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil leaks can develop from various seals and gaskets, including the valve cover gaskets, oil pan gasket, or rear main seal. Noticeable oil spots under the vehicle or burning oil smell.
  • Solution: Replacement of the leaking seals and gaskets.
  • Estimated Cost to Fix: $300 - $1500+ (depending on the location of the leak)
  • Recalls: None Found

Transmission

8-Speed Automatic (Tiptronic)

• Rough Shifting
  • Description/Symptoms: Some owners report rough or jerky shifting, particularly between lower gears. This may be more noticeable during cold starts.
  • Solution: In some cases, a software update to the transmission control module (TCM) can resolve the issue. More severe cases may require valve body replacement or complete transmission overhaul/replacement.
  • Estimated Cost to Fix: $100 - $200 for a software update; $800 - $3000+ for valve body or transmission replacement.
  • Recalls: None Found
• Hesitation/Delay
  • Description/Symptoms: Delay when accelerating from a stop.
  • Solution: Valve Body Replacement
  • Estimated Cost to Fix: $800 - $3000+
  • Recalls: None Found

Suspension

• Adaptive Damper Issues (if equipped with adaptive suspension)
  • Description/Symptoms: Malfunctioning adaptive dampers can cause a harsh or bouncy ride, uneven handling, or suspension warning lights on the dashboard. The suspension may get stuck in a specific mode.
  • Solution: Replacement of the faulty damper(s).
  • Estimated Cost to Fix: $500 - $1500+ per damper
  • Recalls: None Found
• Creaking/Squeaking Noises
  • Description/Symptoms: Creaking or squeaking noises can originate from the suspension bushings, especially in colder weather.
  • Solution: Lubrication or replacement of worn bushings.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found

Electrical

• Infotainment System Glitches
  • Description/Symptoms: Freezing, slow response times, or random reboots of the MMI (Multi Media Interface) infotainment system.
  • Solution: Software updates are often the first step. If the problem persists, the MMI unit may need replacement.
  • Estimated Cost to Fix: $0 (for software update) - $1000+ for MMI unit replacement
  • Recalls: None Found
• Sensor Malfunctions
  • Description/Symptoms: Malfunctions of various sensors (e.g., parking sensors, blind-spot monitoring, lane departure warning) can trigger warning lights and disable associated features.
  • Solution: Diagnosis and replacement of the faulty sensor.
  • Estimated Cost to Fix: $200 - $800+ per sensor, depending on the location and type of sensor
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Rattling/Buzzing Noises
  • Description/Symptoms: Rattling or buzzing noises from interior trim panels, particularly in the dashboard or door panels.
  • Solution: Secure loose trim panels or apply damping material to prevent vibrations.
  • Estimated Cost to Fix: $100 - $500+ (depending on the severity and location)
  • Recalls: None Found

Summary

The 2020 Audi S4 is a generally reliable vehicle, but like any car, it has its potential issues. Engine oil leaks and coolant leaks appear to be more prevalent. Transmission issues can be costly. Electrical gremlins within the infotainment system also pop up. Suspension issues are not as common. Overall, issues tend to range from minor annoyances to potentially costly repairs, emphasizing the importance of a thorough pre-purchase inspection and regular maintenance.