2018 Audi RS 5 Pre-Purchase Inspection Checklist
Known Issues — 2018 Audi RS 5
Carbon buildup on intake valves (both port+direct injection) — less severe but still occurs
Sport exhaust valve actuator failure causing stuck-open or stuck-closed exhaust
Electric power steering fault codes causing intermittent loss of assist
Oil consumption on 2.9 TFSI biturbo under hard driving — check between services
Virtual Cockpit display delamination or pixel issues at high mileage
Magnetic ride damper failure causing rough ride or fault light
What to Inspect
- Check for oil consumption — ask about top-ups between services
- Test sport exhaust valve — both loud/quiet modes should switch cleanly
- Test electric power steering through full lock both directions
- Test magnetic ride (if equipped) in all modes — no harsh jarring
- Scan all modules for fault codes including chassis and powertrain
- Verify Virtual Cockpit display clarity and full function
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic high-performance) | every 10,000 miles | $170-$230 |
| S tronic 8-speed service | every 40,000 miles | $350-$500 |
| Spark plugs (iridium) | every 40,000 miles | $200-$280 |
| Quattro rear differential fluid | every 40,000 miles | $150-$220 |
| Brake fluid flush | every 2 years or annually if track driven | $120-$170 |
| Brake pads and rotors (front carbon ceramic or iron) | every 20,000-40,000 miles | $600-$2,500 |
| Transfer case fluid | every 40,000 miles | $200-$300 |
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