2021 Audi S4

Here’s a breakdown of common issues and complaints reported for the 2021 Audi S4, formatted for your website.

The 2021 Audi S4 is a performance-oriented sedan known for its blend of luxury, sporty handling, and potent engine. The S4 comes equipped with a turbocharged 3.0-liter V6 engine, producing 349 horsepower and 369 lb-ft of torque. All S4 models are equipped with an 8-speed automatic transmission. Owners typically praise the S4 for its quick acceleration, comfortable ride, and high-quality interior. Criticisms often include the sometimes-numb steering feel and the relatively high price point compared to competitors. Some owners have also expressed concern about the reliability of certain electronic features.

Engine

3.0L TFSI V6

• Oil Leaks
  • Description/Symptoms: Oil leaks can occur from various locations, including the valve cover gaskets and the oil pan. Symptoms include visible oil drips under the car, a burning oil smell, and low oil levels.
  • Solution: Replacing the leaking gasket or seal.
  • Estimated Cost to Fix: $300 - $1,000+ depending on the source of the leak.
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Coolant leaks can occur from the water pump or thermostat housing. Symptoms include low coolant levels, overheating, and visible coolant leaks.
  • Solution: Replacing the leaking component.
  • Estimated Cost to Fix: $500 - $1,200+ depending on the component.
  • Recalls: None Found

Transmission

8-Speed Automatic (ZF 8HP55)

• Harsh Shifting/Hesitation
  • Description/Symptoms: Some owners have reported experiencing harsh or jerky shifts, particularly during low-speed driving. Hesitation when accelerating from a stop has also been mentioned.
  • Solution: Transmission fluid flush and adaptation reset is often the first step. In some cases, valve body replacement may be necessary.
  • Estimated Cost to Fix: $300 (fluid flush & adaptation) to $2,000+ (valve body replacement).
  • Recalls: None Found
• Transmission Failure
  • Description/Symptoms: Premature transmission failure has been reported by some owners, resulting in complete loss of the vehicle’s ability to accelerate.
  • Solution: Replacement of the transmission.
  • Estimated Cost to Fix: $6,000 - $10,000
  • Recalls: None Found

Electrical

• Infotainment System Issues
  • Description/Symptoms: The MMI (Multi Media Interface) system can experience glitches, including freezing, slow response times, and display issues. Problems with Bluetooth connectivity and smartphone integration have also been noted.
  • Solution: Software updates are often the first course of action. In some cases, hardware replacement (MMI unit) may be required.
  • Estimated Cost to Fix: $0 (software update) to $1,500+ (MMI unit replacement).
  • Recalls: None Found
• Sensor Malfunctions
  • Description/Symptoms: Problems with various sensors, such as parking sensors, blind-spot monitoring sensors, and tire pressure monitoring sensors, have been reported.
  • Solution: Replacing the faulty sensor.
  • Estimated Cost to Fix: $200 - $800+ per sensor, depending on location and type.
  • Recalls: None Found

Interior

• Sunroof/Moonroof Problems
  • Description/Symptoms: Some owners have reported issues with the sunroof/moonroof mechanism, including difficulty opening or closing, unusual noises, or leaks.
  • Solution: Repair or replacement of the sunroof/moonroof assembly.
  • Estimated Cost to Fix: $500 - $2,000+ depending on the extent of the damage.
  • Recalls: None Found
• Seat Heater Malfunction
  • Description/Symptoms: The seat heaters fail to turn on, or they only heat intermittently.
  • Solution: Replace heating element.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

Exterior

• Adaptive Headlight Issues
  • Description/Symptoms: Problems with the adaptive headlights, such as failure to adjust properly or error messages on the dashboard.
  • Solution: Recalibration or replacement of the headlight assembly or related sensors.
  • Estimated Cost to Fix: $500 - $2,000+ depending on the complexity of the issue.
  • Recalls: None Found

Summary

The 2021 Audi S4, while lauded for its performance and luxury, can present owners with several potential issues. Electrical problems, particularly with the infotainment system and sensors, appear to be relatively common. Engine oil and coolant leaks are also concerns to be aware of. While not as frequent, transmission problems can be costly to repair. The severity and cost of these potential issues vary, but prospective buyers should be aware of these potential problems.