2015 Infiniti QX80 Pre-Purchase Inspection Checklist
Known Issues — 2015 Infiniti QX80
MODERATE
Timing chain tensioner wear causing rattle on cold start — common on VK56 V8
MODERATE
Fuel pump failure on high-mileage units
MODERATE
Air suspension compressor failure causing ride height sag
MINOR
Third-row seat track mechanism wear causing stiff folding
MINOR
Infotainment navigation system outdated and slow
MODERATE
Brake caliper seizing on rear axle in salt-belt regions
What to Inspect
- Cold start V8 timing chain rattle
- Air suspension function at all heights
- Fuel pump behavior — listen for whine under load
- Rear brake caliper slide pin condition
- Third-row seat operation
- Infotainment system function
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Engine oil service | every 5,000 miles | $120-$180 |
| Major service (plugs, filters, fluids) | every 30,000 miles | $600-$1,000 |
| Transfer case and differential fluids | every 30,000 miles | $300-$500 |
| Air suspension service | as needed | $800-$2,000 |
| Brake pad/rotor replacement | every 30,000-50,000 miles | $500-$900 |
| Tire replacement | every 40,000-55,000 miles | $900-$1,400 |
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