Reliability & 5-year cost of ownership — 2002 Audi S4
NHTSA data on file today
The 2002 Audi S4 has 1 NHTSA recall campaign and 22 owner complaints on file as of . Recall data is refreshed daily from NHTSA.
Recall campaigns on file
- NHTSA #21V470000 Air Bag Inflators May Underinflate Bag NHTSA notice
Most-cited components in owner complaints
- Electrical System 10 complaints
- Service Brakes, Hydraulic 9 complaints
- Seats 3 complaints
- Engine and Engine Cooling 1 complaint
- Equipment 1 complaint
Below average
Estimated 5-year repair + maintenance cost: $7,000–$12,000AI estimate — not from NHTSA data
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 (AI estimate) | Cost range (AI estimate) | 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 |
AI estimate — not from NHTSA data: the mileage bands and repair-cost ranges above. Get a written repair quote before you budget.
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 from the NHTSA recall campaigns and owner-complaint counts on file for the 2002 Audi S4 at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.