Infiniti QX55 maintenance: the schedule, the costs, the traps
A compact luxury coupe-crossover SUV with a gas powertrain. Below: the service intervals with real cost ranges, the repairs QX55 owners actually report, and when a fleet operator would sell. Same data Carlyle uses to score fleet buys.
Service schedule
What it needs, and what that runs
| Interval | Service | Typical cost |
|---|---|---|
| 7,500 mi / 6 mo | Synthetic 0W-20 oil + filter; tire rotation; inspection (5,000 mi if severe - watch oil dilution) | $80-$150 |
| 15,000 mi | Oil + filter; tire rotation; cabin air filter; engine air filter inspect; brakes | $180-$320 |
| 30,000 mi | Engine + cabin air filters; brake fluid flush; CVT fluid service (severe/recommended) | $350-$600 |
| 60,000 mi | Spark plugs; brake fluid; CVT fluid; transfer case + rear diff fluid (AWD std); air filters | $550-$900 |
| 90,000 mi | Coolant flush; spark plugs (if due); accessory belt; inspect turbo/PCV | $450-$750 |
Known repair windows
What QX55 owners actually run into
Mileage ranges where these repairs typically show up. Buying above a window is not automatically a pass - it just needs to be priced in.
VC-Turbo engine bearing failure (recall)
high severity40,000-100,000 mi · $8,000-$14,000 (engine)
2022 QX55 included in Nissan VC-Turbo bearing recall; risk of catastrophic engine failure
CVT failure / shudder
high severity50,000-110,000 mi · $4,000-$7,000
Shares Jatco CVT with QX50; judder and eventual failure
Oil dilution / high oil consumption
medium severity20,000-80,000 mi · $100-$600 (monitoring)
Fuel-in-oil dilution on VC-Turbo; check level and shorten oil intervals
Carbon buildup on intake valves (GDI)
medium severity60,000-120,000 mi · $400-$900 walnut blast
Direct-injection coking; rough idle/misfires
Turbo / boost-control faults
medium severity70,000-130,000 mi · $1,200-$2,500
Turbo and variable-compression actuator sensor faults; high labor
Operator notes
Coupe-roofline sibling of QX50; launched 2021 (2022 MY), final model year 2025, discontinued alongside QX50. Same VC-Turbo 2.0L + Jatco CVT, but AWD is standard. Same engine-bearing recall and CVT risks as QX50. 0W-20 synthetic, monitor oil dilution, CVT fluid ~30k.
When the smart money sells
On fleet math, a gas QX55 retires around 95,000 miles - but the exit window opens earlier here: VC-Turbo engine bearing failure (recall) risk window ($8,000-$14,000 (engine)) opens ~40,000 mi. Carlyle's garage tracks this per car, against your actual odometer.
Cost ranges are typical US independent-shop estimates and vary by region and condition. Modeling, not mechanic advice - always confirm against your car's service records.
More Infiniti guides
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