2017 Audi A4 Pre-Purchase Inspection Checklist
Known Issues — 2017 Audi A4
MODERATE
Mild hybrid (MHEV) 48V belt starter-generator failures on later B9 variants
MODERATE
Carbon buildup on intake valves despite port+direct injection combo on some variants
MINOR
Virtual Cockpit display delamination or pixel issues at high mileage
MODERATE
Quattro rear differential oil seal leaks on AWD models
MODERATE
Electric power steering occasional loss of assist warning
MINOR
MMI touch interface unresponsive after software updates
What to Inspect
- Check for any quattro rear differential oil leaks under the vehicle
- Verify Virtual Cockpit display is sharp with no dead pixels or delamination
- Test all MMI touch functions including navigation and media
- Scan all modules for fault codes especially powertrain and chassis
- Confirm electric power steering assist is consistent through full lock
- Check service history for software updates and oil change compliance
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic) | every 10,000 miles | $130-$170 |
| DSG 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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