AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2002 Audi S4
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $7,000–$12,000
The 2002 Audi S4 has a notable airbag recall and frequent electrical and brake system complaints. These issues suggest potential reliability concerns, impacting its overall cost of ownership.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| electrical system | 80,000–100,000 miles | $400–$800 | very common |
| service brakes | 70,000–90,000 miles | $300–$600 | common |
| hydraulic system | 70,000–100,000 miles | $250–$500 | common |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake fluid replacement
- Timing belt replacement
- Transmission fluid change
- Spark plug replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Unresponsive electrical components
- Soft brake pedal feel
- Airbag warning lights
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.