IsItAGoodCar
Reliability Guide

Common Problems with the
2019 Infiniti QX50 (EX)

The 2019 Infiniti QX50 (EX) has an excellent reliability record with no widely reported common faults for this model year period.

Buying Tips for 2019 Infiniti QX50 (EX)

  • On 3.0d V9X diesel models, scan for historical DPF soot loading and exhaust backpressure codes, ensuring the car has regular motorway mileage rather than town-only use.
  • Inspect the front lower suspension wishbone rear hydraulic compliance bushes for fluid leaks or rubber tearing, which causes front-end knocking over potholes.
  • Test the Around View Monitor system in all camera modes, ensuring the front grille and door mirror camera lenses are free from water condensation or blank screens.
  • On 3.7-litre V6 petrol models, check the passenger-side firewall heater hose plastic connector for embrittlement, and listen for timing chain noise on cold starts.
  • Verify that the intelligent all-wheel-drive system operates without differential whining at 50 to 70mph, checking for documented transfer case fluid changes.