2021 Audi A5 Pre-Purchase Inspection Checklist
Known Issues — 2021 Audi A5
MODERATE
Carbon buildup on TFSI intake valves
MODERATE
S tronic 7-speed shudder in stop-and-go
MODERATE
Oil consumption on some TFSI units
MODERATE
ADAS false positive braking in certain conditions
MINOR
Wireless CarPlay/Android Auto intermittent drops
MODERATE
Electric power steering intermittent fault codes
What to Inspect
- Test S tronic in city stop-and-go
- Check oil consumption
- Test electric power steering for consistent assist
- Verify all ADAS features active — no false triggering history
- Test wireless CarPlay/Android Auto
- Scan all modules for fault codes
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic) | every 10,000 miles | $130-$170 |
| S tronic service | every 40,000 miles | $300-$450 |
| Spark plugs | every 40,000 miles | $150-$200 |
| Intake valve cleaning (walnut blast) | every 60,000-80,000 miles | $400-$600 |
| Quattro rear differential fluid | every 40,000 miles | $150-$220 |
| Brake fluid flush | every 2 years | $100-$150 |
| Brake pads and rotors (front) | every 40,000-60,000 miles | $400-$700 |
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