Fiat 500X 334
Weaknesses, engine ratings and buying advice
150–151 PS
1.3L Turbo Benzin
Modern Successor
Decent150–151 PS
1.3L Turbo Benzin
4 weaknesses
Good Choice136–140 PS
1.4L MultiAir Turbo Benzin
4 weaknesses
Stay Away!Engine Overview
The Fiat 500X 334 is available with 8 engine variants — from 95 to 151 hp.
The Fiat 1.3L MultiJet II (Diesel, 95 PS) has the 55266963 (1.3L MultiJet II) — rated: "Be Careful", 4 known weaknesses.
The Fiat 1.6L MultiJet (Diesel, 105 PS) has the 198A2 (1.6L MultiJet) — rated: "Be Careful", 5 known weaknesses.
The Fiat 1.6L MultiJet II (Diesel, 114–120 PS) has the 55260384 (1.6L MultiJet II) — rated: "Be Careful", 5 known weaknesses.
The Fiat 2.0L MultiJet II (Diesel, 136–140 PS) has the 55263088 (2.0L MultiJet II) — rated: "Be Careful", 3 known weaknesses.
The Fiat 1.3L Turbo (Benziner, 150–151 PS) has the GSE-T4 (1.3L Turbo) — rated: "Good Choice", 4 known weaknesses.
The Fiat 1.4L MultiAir Turbo (Benziner, 136–140 PS) has the 955A2 (1.4L MultiAir Turbo) — rated: "Stay Away!", 4 known weaknesses.
The Fiat 1.6L E-Torq (Benziner, 110 PS) has the 955A3 (1.6L E-Torq) — rated: "Be Careful", 4 known weaknesses.
The Fiat 1.5L FireFly Turbo Mild-Hybrid (Benziner Mild-Hybrid, 130–131 PS) has the GSE-T4-MH (1.5L FireFly Turbo Mild-Hybrid) — rated: "Be Careful", 5 known weaknesses.
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| UConnect System and Parking Sensors UConnect infotainment and parking sensors on the Fiat 500X (334) show frequent malfunctions. Bluetooth disconnects, false parking sensor warnings and system hangs. Symptoms: Parking sensors trigger without reason, Bluetooth disconnects itself, touchscreen freezes, reversing camera flickers | Low |
Top Reported Issues
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Known Problems and Issues
A total of 44 weaknesses have been documented for the Fiat 500X 334 (2014–2023) — 34 engine-related and 10 vehicle-related. One problem engine: 955A2 (1.4L MultiAir Turbo). Typical issues affect Electronics, Gearbox, Suspension, Body. Considered reliable: GSE-T4 (1.3L Turbo).
500X (198A2, 2014–2021) — Be Careful: Production defect crankshaft (model year 2016), Timing belt failure when overdue, Heat exchanger failure with oil-coolant mixing. Power: 105 PS.
500X (55260384, 2014–2020) — Be Careful: Turbocharger — failure at high mileage, Diesel particulate filter — blockage from short trips, EGR valve — carbon fouling and failure. Power: 114–120 PS.
500X (55263088, 2014–2018) — Be Careful: Automatic gearbox maintenance interval critical, Variable turbine geometry wears out, ESP/ARS warning light permanently on. Power: 136–140 PS.
500X (55266963, 2017–2018) — Be Careful: Turbo overboost fault and limp mode, DPF blockage (Euro 6 system), High-pressure pump: wear and clattering. Power: 95 PS.
500X (955A2, 2014–2020) — Stay Away!: MultiAir unit failed, Turbocharger failure, Spark plugs oil-fouled (misfires). Power: 136–140 PS.
500X (955A3, 2015–2020) — Be Careful: Timing chain tensioner pad wear, Oil ingress into intake tract via crankcase ventilation, Ignition Coil Failure. Power: 110 PS.
500X (GSE-T4-MH, 2022–2025) — Be Careful: eDCT Control Unit Defective, Recall F51L: Loose Fuel Lines, Oil Dilution with Short-Trip Use. Power: 130–131 PS.
What to watch out for with the Fiat 500X? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
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Last updated: February 2026 · All information without guarantee