2021 Audi Q3 Pre-Purchase Inspection Checklist
Known Issues — 2021 Audi Q3
MODERATE
Carbon buildup on TFSI intake valves
MODERATE
S tronic shudder in city driving
MINOR
MMI infotainment lag and wireless Apple CarPlay disconnects
MINOR
ADAS false positive braking on some software versions
MINOR
Mild front suspension creak from strut top mounts in cold weather
MODERATE
Oil consumption on higher-mileage TFSI engines
What to Inspect
- Test S tronic in stop-and-go city conditions
- Check oil level and ask about consumption
- Test wireless CarPlay/Android Auto connectivity
- Verify all ADAS features — adaptive cruise, lane centering
- Listen for front strut creak over speed bumps
- Scan all modules for fault codes
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic) | every 10,000 miles | $110-$150 |
| S tronic service | every 40,000 miles | $280-$400 |
| Spark plugs | every 40,000 miles | $130-$180 |
| Intake valve cleaning (walnut blast) | every 60,000-80,000 miles | $400-$600 |
| Brake fluid flush | every 2 years | $90-$130 |
| Rear differential fluid | every 40,000 miles | $130-$200 |
| Cabin filter + air filter | every 20,000 miles | $70-$110 |
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