2021 Infiniti Q50 Pre-Purchase Inspection Checklist
Known Issues — 2021 Infiniti Q50
MODERATE
3.0T timing chain tensioner wear on higher-mileage units
MODERATE
Carbon buildup on direct-injection 3.0T intake valves
MODERATE
Oil consumption on 3.0T
MINOR
Infotainment software lag with wireless connectivity
MINOR
Front suspension lower arm bushing wear
MINOR
Sport exhaust drone at highway speeds on Red Sport
What to Inspect
- 3.0T cold start rattle — timing chain check
- Oil consumption test drive
- Intake valve carbon on 40,000+ mile units
- Front suspension bushing condition
- Infotainment connectivity
- Service record verification
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Engine oil service | every 5,000-7,500 miles | $70-$120 |
| Major service (plugs, filters, fluids) | every 30,000 miles | $400-$700 |
| Timing chain service if rattling (3.0T) | as needed | $1,500-$3,500 |
| Transmission fluid | every 60,000 miles | $150-$280 |
| Brake pad/rotor replacement | every 25,000-45,000 miles | $350-$650 |
| Intake valve cleaning | every 40,000-60,000 miles | $400-$700 |
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