2023 Audi A4 Pre-Purchase Inspection Checklist
Known Issues — 2023 Audi A4
MODERATE
Carbon buildup on intake valves requiring periodic cleaning
MINOR
MMI infotainment connectivity issues with wireless Apple CarPlay on some units
MODERATE
Oil consumption on some TFSI units
MODERATE
ADAS false positive braking events in certain road conditions
MODERATE
Quattro rear differential oil seal leaks on some AWD models
MINOR
Mild software glitches requiring dealer reset for full system reboot
What to Inspect
- Check oil level and consumption history
- Scan all modules for fault codes
- Test all ADAS systems for false triggering
- Verify wireless CarPlay/Android Auto stability
- Check for quattro rear differential oil leaks
- Confirm all software is up to date via Audi dealer
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 |
| Quattro rear differential fluid | every 40,000 miles | $150-$220 |
| Brake fluid flush | every 2 years | $100-$150 |
| Pollen/cabin filter + air filter | every 20,000 miles | $80-$120 |
| Brake pads and rotors (front) | every 40,000-60,000 miles | $400-$700 |
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