2021 Audi RS 5 Pre-Purchase Inspection Checklist
Known Issues — 2021 Audi RS 5
MODERATE
Carbon buildup on intake valves
MODERATE
Sport exhaust valve actuator failure
MODERATE
Oil consumption under spirited driving
MODERATE
Magnetic ride damper failure on some units
MODERATE
ADAS false positive braking events
MINOR
Wireless CarPlay/Android Auto connectivity drops
What to Inspect
- Check oil consumption — ask owner and review service records
- Test sport exhaust valve in all modes
- Test magnetic ride suspension in comfort, auto, and dynamic modes
- Verify all ADAS features active — no false triggering history
- Test wireless CarPlay/Android Auto connectivity
- Scan all modules for fault codes
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic high-performance) | every 10,000 miles | $170-$230 |
| S tronic 8-speed service | every 40,000 miles | $350-$500 |
| Spark plugs (iridium) | every 40,000 miles | $200-$280 |
| Quattro rear differential fluid | every 40,000 miles | $150-$220 |
| Brake fluid flush | every 2 years | $120-$170 |
| Brake pads and rotors (front) | every 20,000-40,000 miles | $600-$2,500 |
| Transfer case fluid | every 40,000 miles | $200-$300 |
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