2018–2023 Audi S4 Ownership Guide

Garage Guide Verdict:

🟢 Recommended

The B9 Audi S4 is one of the most complete performance sedans available. With a turbocharged V6, Quattro all-wheel drive, refined interior, and excellent daily-driver manners, the S4 offers luxury, performance, and year-round usability in one package. While maintenance costs are higher than Japanese competitors, the overall ownership experience is excellent when properly maintained.

🏆 Garage Guide Ownership Score

🟢 8.9 / 10

🔍 Garage Guide Reliability Snapshot

🟢 Reliability: Good

🟡 Maintenance Cost: Average

🟢 Performance: Excellent

🟢 Modification Potential: Excellent

🟢 Daily Driver Suitability: Excellent

🟢 Long-Term Ownership: Good

📋 Buying Checklist

Vehicle History

✅ Clean title

✅ No major accidents

✅ Consistent maintenance records

✅ Verify service history

✅ No flood damage

Mechanical Inspection

✅ Inspect cooling system

✅ Verify turbocharger operation

✅ Check suspension components

✅ Scan for stored fault codes

✅ Verify transmission performance

Modification Review

✅ Professional tuning documentation

✅ Quality aftermarket components

✅ Supporting modifications present

✅ No signs of abuse or neglected maintenance

🏆 Best Model Years

🥇 2022–2023 S4

• Updated technology
• Most refined platform
• Strong resale value

🥈 2020–2021 S4

• Proven drivetrain
• Excellent reliability
• Updated infotainment

🥉 2018–2019 S4

• Great value
• Lower purchase prices
• Strong performance

⚠️ Proceed Carefully

Modified Vehicles

Many S4s receive ECU tunes. Verify supporting modifications and maintenance history.

Cooling System Components

Inspect water pump and cooling system operation carefully.

DSG / ZF Service History

Verify transmission maintenance has been performed.

Deferred Maintenance

Luxury performance cars reward proactive maintenance.

📊 Mileage Expectations

Under 50,000 Miles

🟢 Excellent

50,000–100,000 Miles

🟢 Excellent

100,000–150,000 Miles

🟢 Common

150,000–200,000+ Miles

🟡 Possible with proper maintenance

💰 Ownership Budget

Annual Maintenance Estimate

Oil Changes: $120–$350

Tires: $800–$1,800

Brakes: $500–$1,500

Misc. Maintenance: $700–$2,000

Estimated Annual Ownership Cost

$1,200–$5,500+

Depending on mileage, driving habits, and maintenance requirements.

🔧 Audi S4 Highlights

🏁 3.0L Turbocharged V6

🏁 Quattro AWD

🏁 Luxury Interior

🏁 Excellent Daily Driver

🏁 Strong Tuning Potential

🏁 Premium Technology

🏁 All-Weather Capability

🏁 Refined Driving Experience

🏁 Ownership Score Summary

Pros

✅ Quattro AWD confidence

✅ Excellent daily driver

✅ Premium interior

✅ Strong aftermarket support

✅ Fast and comfortable

✅ Great year-round vehicle

Cons

❌ Maintenance costs higher than Lexus

❌ Premium fuel required

❌ Repairs can become expensive

❌ Modified examples require careful inspection

🌟 Vehicle Highlights

⭐ 3.0L Turbocharged V6

⭐ 349 HP / 369 LB-FT

⭐ Quattro AWD

⭐ 8-Speed Automatic

⭐ 0–60 MPH Around 4.4 Seconds

⭐ Premium Audi Interior

⭐ Huge Tuning Potential

⭐ One of the Best Luxury Sport Sedans Available

🏁 Garage Guide Final Verdict

The 2018–2023 Audi S4 strikes an exceptional balance between performance, luxury, and practicality. It delivers genuine sports-sedan performance while remaining comfortable enough for everyday commuting. For enthusiasts seeking one vehicle that can do everything, the B9 S4 is one of the strongest choices on the market.

🏆 Garage Guide Ownership Score

🟢 8.9 / 10

✅ Recommended

Build Smarter. Drive Longer.™