Fiat 500
Robust three-cylinder naturally aspirated engine with BSG mild hybrid; hybrid components (48V belt-starter-generator, belt drive) require attention at high mileages.
Cabrio Doesn't Save 70 hp
Open-top driving with too little power is pleasant for city strolls, but not fun. Three-cylinder sounds rough and strained at full throttle.
Engine Weaknesses 4
The GSE-T3 uses a dry belt drive (no timing belt in oil). Change interval per Fiat: 120,000 km or 10 years. With heavy stop-and-go city use, earlier replacement is advisable.
Symptoms: No early warning symptoms — belt failure leads directly to engine damage
Mild-hybrid assist and the start-stop system of the GSE-T3 fail when the 48V auxiliary battery weakens. Common with short-trip use and in winter.
Symptoms: Start-stop deactivates itself, no hybrid boost, warning indicator on instrument cluster
The 12V starter battery of the 500 Hybrid loses capacity prematurely under frequent short-trip use. First signs as early as 15,000–25,000 km through sluggish starting.
Symptoms: Slow starting, warning message on display, start-stop system deactivated
The manual 6-speed gearbox of the GSE-T3 can become rougher to shift at higher mileage. An oil change (often not required by the service plan) brings noticeable improvement.
Symptoms: Grating when selecting gears, shift precision deteriorates
Vehicle Weaknesses 13
The semi-automatic Dualogic gearbox on the Fiat 500 (312) tends to jerk when shifting, drop into neutral unexpectedly and fail completely. Control unit replacement costs 2,000–2,400 Euro.
Multiple recall actions on the Fiat 500 (312) involved defective brake hoses, incorrect brake torque and non-compliant brake pads.
Recall action on the Fiat 500 (312) for faulty airbag wiring that could impair correct deployment of the driver's airbag.
Sills and wheel arches on the Fiat 500 (312) rust faster than average, especially with regular winter use and road salt exposure. Paint corrosion at sill edges from as early as 5–7 years.
The electric power steering on the Fiat 500 (312) can fail intermittently. Water ingress into the steering rack has been documented, which in the worst case can lead to complete seizure.
Recall for faulty seatbelt pretensioner activation. Pretensioners could fire too late or not at all in a collision.
Control arm rubber bushings and ball joints wear faster than usual on the Fiat 500 (312) and regularly draw attention at MOT. Typical problem from around 60,000 km.
Electric window regulators on the Fiat 500 (312) fail frequently, typically due to cable break or motor failure. Repair by a mechanic costs 150–400 Euro per side.
The rear silencer on the Fiat 500 (312) rusts through within a few years, especially in short-trip use, as condensation water accumulates inside.
Brake discs and pads on the Fiat 500 (312) wear faster than average and frequently fail inspection for insufficient braking performance.
The AC condenser on the Fiat 500 (312) sits exposed behind the grille and is vulnerable to stone chip damage causing refrigerant loss. Condenser repair costs 400–800 Euro.
The wiring loom in the rubber grommet of the Fiat 500 (312) tailgate breaks due to constant bending. Typically affected are tail lights, brake light and rear window heating.
The lighting system on the Fiat 500 (312) fails inspection at above-average rates. Misadjusted headlights and defective light elements cause MOT failures.