2018 Infiniti Q50: Reliability, Recalls, Known Issues & Cost to Own
Data last updated 2026-07-04 · sources listed throughout · based on public NHTSA data
Refreshed VR30 twin-turbo Q50 with good performance and value, but the timing-chain/VVT wear concern and a slow, CarPlay-less infotainment hold it back. 2 known issue patterns are documented below, with frequency and the mileage windows where they typically appear. New, the 2018 Infiniti Q50 ranged from $35,200 to $51,000 depending on trim (base MSRP, before options and destination).
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Context from the listing you were viewing, not a market-price judgement.
Refreshed VR30 twin-turbo Q50 with good performance and value, but the timing-chain/VVT wear concern and a slow, CarPlay-less infotainment hold it back.
Sources (3)
- api.nhtsa.govhttps://api.nhtsa.gov/complaints/complaintsByVehicle?make=infiniti&model=Q50&…
- repairpal.comhttps://repairpal.com/reliability/infiniti/q50
- carid.comhttps://www.carid.com/articles/infiniti-q50-reliability-common-problems-most-…
Known issues
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On the 3.0L VR30DDTT twin-turbo V6, reports of timing-chain stretch and variable-valve-timing (VVT) sprocket/phaser wear, sometimes signalled by camshaft-correlation fault codes; repair is labor-intensive and costly.
occasional · 28 NHTSA complaints · engine
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Assorted electrical and engine-management complaints (warning lights, sensor faults) on the early turbo years, though overall complaint volume is low for the class.
occasional · electrical
Based on public NHTSA complaint data and AI synthesis: patterns, not guarantees.
Sources (4)
- api.nhtsa.govhttps://api.nhtsa.gov/complaints/complaintsByVehicle?make=infiniti&model=Q50&…
- api.nhtsa.govhttps://api.nhtsa.gov/complaints/complaintsByVehicle?make=infiniti&model=Q50&…
- api.nhtsa.govhttps://api.nhtsa.gov/complaints/complaintsByVehicle?make=infiniti&model=Q50&…
- api.nhtsa.govhttps://api.nhtsa.gov/complaints/complaintsByVehicle?make=infiniti&model=Q50&…
Recalls & safety
Recall history hasn't been loaded for this model year yet.
Whether a recall is still open on a specific car depends on its VIN. Check it free at NHTSA's VIN lookup (nhtsa.gov/recalls), or ask the seller for proof the repair was done.
Pros & cons
Pros
- Potent VR30 3.0L twin-turbo V6 (300 hp, or 400 hp in the Red Sport 400) delivers strong, effortless acceleration.
- Comfortable, quiet interior and a lot of equipment for the used price versus German rivals.
Cons
- Steering remains numb for a sport sedan, premium fuel is required, and depreciation is heavy.
- The twin-turbo V6 carries a timing-chain / VVT-sprocket wear concern that is expensive to address.
- Dual-screen InTouch infotainment is low-resolution and slow, with no Apple CarPlay or Android Auto before 2020.
Trims & original pricing
| Trim | Original base MSRP | New today | Engine | MPG |
|---|---|---|---|---|
| Pure | $35,200 | discontinued | — | — |
| Luxe | $37,550 | discontinued | — | — |
| Sport | $40,650 | discontinued | — | — |
| Red Sport 400 | $51,000 | discontinued | — | — |
Prices are base MSRP for each trim's standard configuration. Options, packages, and destination charges added to what original buyers actually paid.
Sources (1)
- iseecars.comhttps://www.iseecars.com/car/2018-infiniti-q50-price
Cost to own
| Repairs (rises with mileage) | ≈ $600–650/yr |
| Expected lifespan | ~200k miles |
Requires premium fuel
National-average estimates based on public data. Your costs vary by region, driver, and condition.
Sources (3)
- repairpal.comhttps://repairpal.com/reliability/infiniti/q50
- moneygeek.comhttps://moneygeek.com/insurance/auto/infiniti-q50-insurance/
- fueleconomy.govhttps://www.fueleconomy.gov/ws/rest/vehicle/38102
Frequently asked questions
What problems does the 2018 Infiniti Q50 have?
Documented issue patterns include: On the 3.0L VR30DDTT twin-turbo V6, reports of timing-chain stretch and variable-valve-timing (VVT) sprocket/phaser wear, sometimes signalled by camshaft-correlation fault codes; repair is labor-intensive and costly; Assorted electrical and engine-management complaints (warning lights, sensor faults) on the early turbo years, though overall complaint volume is low for the class. Frequency is based on public NHTSA complaint data: patterns, not guarantees.
Is the 2018 Infiniti Q50 reliable?
Refreshed VR30 twin-turbo Q50 with good performance and value, but the timing-chain/VVT wear concern and a slow, CarPlay-less infotainment hold it back.
How much did the 2018 Infiniti Q50 cost new?
Between $35,200 and $51,000 depending on trim. Those are base MSRPs for each trim's standard configuration; options, packages, and destination charges added to what original buyers actually paid.
Is the Infiniti Q50 expensive to maintain?
Estimated repairs run roughly $600–650/year as mileage climbs. Note: it requires premium fuel.
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Estimates are based on public data: patterns, not guarantees. CarVitals is not affiliated with NHTSA, CarMax, AutoTrader, or Cars.com. Issue frequencies come from public NHTSA complaint data, which has no denominator, so they describe reporting patterns, not failure probabilities. Always have a used car inspected before buying. How we build these reports.