AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 1998 Audi A4
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $6,000–$12,000
The 1998 Audi A4 has several recalls concerning critical areas like airbags and steering. Frequent brake issues and related complaints further weaken its reliability record. Given its age and susceptibility to costly repairs, overall reliability is below-average.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| brake system | 80,000–120,000 miles | $300–$800 | very common |
| steering assembly | 70,000–110,000 miles | $400–$900 | common |
| engine cooling system | 90,000–130,000 miles | $250–$600 | occasional |
| electrical system | 100,000–150,000 miles | $200–$500 | occasional |
| airbag system | 80,000–120,000 miles | $400–$900 | rare |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change every 5,000 miles
- Brake fluid change every 2 years
- Coolant replacement every 3 years
- Transmission fluid change every 40,000 miles
- Spark plug replacement every 60,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Soft or spongy brake pedal
- Whining noise during steering
- Overheating engine
- Dashboard warning lights persist
- Unresponsive acceleration
Generated by gpt-4o on 6/18/2026. Cost ranges are conservative estimates that account for typical regional variation.