The crossover-styled 500X shares its turbocharged engine, and that engine's documented MultiAir concerns, with the smaller Abarth hot hatch.
The 500X's larger, heavier crossover body asks a bit more of this engine than the lighter 500 Abarth does, though it remains comfortably within the engine's capability for ordinary use.
AWD versions, where fitted, add drivetrain complexity worth factoring in separately from the engine's own MultiAir-specific considerations covered on its page.
This is about the car itself — for engine-specific failure points, see the dedicated engine page below.
This 500X shares its 1.4L MultiAir Turbo, and that engine's documented concerns, with the related 500 Abarth. The full checklist lives on the shared engine page.
FULL ENGINE BREAKDOWNFiat 1.4L MultiAir Turbo — Reliable or Not →Ask whether any MultiAir-related warning lights or rough running have ever occurred, and have a specialist run a diagnostic scan before buying if there's any doubt.
If considering an AWD version, inspect the additional drivetrain components separately from the engine's own risk profile.
A rough idle or hesitation on throttle application, particularly when cold, is a meaningful warning sign worth having assessed.