2018 Audi Q3 Pre-Purchase Inspection Checklist
Known Issues — 2018 Audi Q3
CRITICAL
Timing chain tensioner failure on 2.0L TFSI causing cold-start rattle
MODERATE
S tronic 6-speed DSG mechatronic failure
MODERATE
Carbon buildup on intake valves
MODERATE
PCV valve failure leading to oil consumption
MINOR
MMI display failure or lockup requiring reboot
MINOR
Sunroof drain clog causing water intrusion
What to Inspect
- Cold-start timing chain rattle
- Test DSG/S tronic in stop-and-go and from standstill
- Check oil consumption
- Verify MMI and infotainment function
- Inspect sunroof drains for blockage
- Scan all modules for fault codes
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic) | every 10,000 miles | $110-$150 |
| DSG/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 |
| Timing chain repair (if tensioner fails) | as needed | $1,200-$2,000 |
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