2015 Infiniti Q50 Pre-Purchase Inspection Checklist
Known Issues — 2015 Infiniti Q50
MODERATE
Direct Adaptive Steering (steer-by-wire) unnerving feel and lag complaints — recall issued
MODERATE
3.7L VQ37 engine oil leaks from valve cover gaskets
MINOR
Infotainment dual-screen system slow response and freezing
MODERATE
Throttle body failure causing rough idle and hesitation on 2.0T
MODERATE
Hybrid battery degradation on high-mileage examples
MODERATE
Brake caliper seizing on salt-belt vehicles
What to Inspect
- Verify DAS (steer-by-wire) recall was completed — check steering response quality
- 3.7L valve cover gasket oil leak inspection
- Throttle body function on 2.0T — check for hesitation at cold start
- Hybrid battery health if applicable
- Dual-screen infotainment function and update status
- Check brake calipers for seizing in salt-belt vehicles
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 |
| Valve cover gasket replacement (3.7L) | as needed | $400-$700 |
| Transmission fluid | every 60,000 miles | $150-$280 |
| Brake pad/rotor replacement | every 30,000-50,000 miles | $350-$650 |
| Tire replacement | every 25,000-40,000 miles | $600-$1,000 |
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