The Fiat FireFly 1.3 is a 1,332 cc, inline‑four turbocharged petrol engine introduced in 2018. It features a DOHC 16‑valve layout with MultiAir III electro‑hydraulic valve control and direct fuel injection. This compact unit delivers a blend of efficiency and responsiveness for Fiat's global small car platforms.
Fitted to models such as the 500X, Tipo, and Panda, the FireFly 1.3 was engineered for urban agility and low emissions. Compliance with stringent Euro 6d-TEMP and Euro 6d standards is achieved through a gasoline particulate filter (GPF) and advanced engine management.
One documented concern is potential malfunction of the low-pressure fuel pump module, which can cause intermittent starting issues. This issue, noted in Fiat Technical Service Bulletin TSB‑19‑215, is often linked to electrical connector corrosion or pump wear and was addressed with revised sealing and diagnostic procedures.

Production years 2018–Present meet Euro 6d-TEMP/Euro 6d standards (VCA UK Type Approval #VCA/EMS/8912).
The Fiat FireFly 1.3 is a 1,332 cc inline‑four turbocharged petrol engine engineered for compact and crossover models (2018-Present). It combines MultiAir III valve control with direct injection and a gasoline particulate filter to deliver responsive power with low emissions. Designed to meet Euro 6d standards, it balances modern efficiency with everyday drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,332 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 72.0 mm × 82.0 mm | |
| Power output | 96–110 kW (130–150 PS) | |
| Torque | 230–270 Nm @ 1,850–3,750 rpm | |
| Fuel system | Gasoline direct injection (GDI) with low-pressure lift pump | |
| Emissions standard | Euro 6d-TEMP / Euro 6d | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single turbocharger (Garrett or Mitsubishi) | |
| Timing system | Chain‑driven | |
| Oil type | Fiat 9.55535‑DS1 (SAE 5W‑40) | |
| Dry weight | 110 kg |
The MultiAir III system provides sharp throttle response ideal for city driving but requires strict adherence to 15,000 km oil change intervals using Fiat 9.55535-DS1 (5W-40) to protect the hydraulic actuators. Premium unleaded (95 RON minimum) is critical due to direct injection and turbocharging to prevent knock and carbon buildup. The low-pressure fuel pump, subject to TSB 19-215, should be inspected for connector corrosion if intermittent starting occurs. The chain-driven timing system is robust but shares oil passages with the MultiAir unit.
Oil Specs: Requires Fiat 9.55535-DS1 (5W-40) specification (Fiat Workshop Manual FF13A).
Emissions: Euro 6d-TEMP/Euro 6d certification applies to all 2018–Present models (VCA Type Approval #VCA/EMS/8912).
Power Ratings: Measured under ECE R85 standards. 110 kW output requires 95 RON fuel (Fiat Group PT-2023).
Fiat Technical Information System: Docs FF13A, TSB 19-215
VCA Type Approval Database (VCA/EMS/8912)
UNECE Regulation No. 85 (Engine Power Measurement)
The Fiat FireFly 1.3 was used across Fiat's Small platforms with transverse mounting. This engine received platform-specific adaptations-reinforced mounts in the 500X AWD variants-and no significant ECU revisions, creating no interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Fiat Workshop Manual FF13A). The 8th VIN digit often corresponds to engine displacement/type ('C' for 1.3L FireFly in many markets). Visually, the engine features a prominent black plastic intake manifold with "MultiAir III" branding and a single turbocharger on the exhaust manifold. Critical differentiation from older 1.4L engines: Presence of a gasoline particulate filter (GPF) in the exhaust system and a more compact overall design.
The FireFly 1.3's primary reliability consideration is potential low-pressure fuel pump module malfunction, with documented cases causing starting difficulties. Fiat TSB 19-215 notes this issue, while owner feedback often notes it around 60,000 km. Use of correct fuel grade and addressing electrical connections make long-term reliability excellent.
Analysis derived from Fiat technical bulletins (2018-Present) and owner-reported data aggregated from official dealer networks. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT FIREFLY-1-3.
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