The Fiat 350 A3.000 is a 1,197 cc, inline — three, naturally aspirated petrol engine produced between 2016 and 2020. It belongs to Fiat’s FireFly engine family, featuring multi — point fuel injection (MPFI), dual overhead camshafts (DOHC), and 12 valves. Rated at 54 kW (73 PS) and 109 Nm of torque, it was engineered for compact urban vehicles requiring low fuel consumption and ease of maintenance.
Fitted to models including the Fiat 500, Fiat Panda, and Lancia Ypsilon, the 35…
All production years 2016–2020 meet Euro 6b emissions standards .
The Fiat 350 A3.000 – Petrol is a 1,197 cc inline-three, naturally aspirated engine engineered for compact city cars (2016–2020). It combines multi-point fuel injection with DOHC valvetrain architecture to deliver responsive low-end torque and quiet operation. Designed to meet Euro 6b standards, it prioritises fuel economy and serviceability in urban environments.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,197 cc | |
Fuel type | Petrol (Unleaded, 95 RON min) | |
Configuration | Inline-3, DOHC, 12-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 79.0 mm × 80.5 mm | |
Power output | 54 kW (73 PS) @ 6,000 rpm | |
Torque | 109 Nm @ 4,000 rpm | |
Fuel system | Multi-point fuel injection (MPFI) | |
Emissions standard | Euro 6b | |
Compression ratio | 11.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Rubber timing belt (interval: 90,000 km / 6 years) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 83 kg |
The Fiat 350 A3.000 – Petrol was used across Fiat's 312/319 platforms with transverse mounting and shared with Lancia under the SelecTronic platform agreement. This engine received platform-specific adaptations-shorter intake manifolds in the 500 and revised ECU tuning in the Panda-and from 2018 the facelifted 500X models adopted the GSE Mild Hybrid variant with start-stop optimization, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
The 350 A3.000’s primary reliability risk is timing belt tensioner failure, with elevated incidence in hot climates and extended service intervals. Internal Fiat quality reports from 2017 noted a significant number of pre-2018 engines requiring premature belt replacement, while VCA MOT records show increased catalytic converter failures in stop-start urban use. Infrequent full-load operation and delayed servicing increase carbon and coking risks, making adherence to maintenance intervals critical.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The 350 A3.000 is generally reliable when maintained properly. Pre-2018 models require vigilance regarding the timing belt tensioner, which can fail prematurely if not replaced at 90,000 km or 6 years. Later builds have improved components. Regular oil changes, use of quality fuel, and periodic intake cleaning contribute to long-term durability in city-driven applications.
The most documented issues are timing belt tensioner wear, intake carbon buildup, catalytic converter clogging, and coolant leaks from the thermostat housing. These are covered in Fiat service bulletins and field reports. Preventive maintenance, especially timely belt service and intake cleaning, significantly reduces failure rates.
This 1.2L petrol engine was used in the Fiat 500 (2016–2020), Fiat Panda (2016–2020), Lancia Ypsilon (2016–2019), and Fiat 500L (2016–2020). It was phased out in favour of the GSE Mild Hybrid 1.2 with integrated starter-generator. All applications meet Euro 6b emissions standards.
Limited tuning potential exists via ECU remapping, typically yielding +5–10 kW. However, the naturally aspirated design and compression ratio limit gains. Supporting mods like intake and exhaust upgrades offer marginal improvements. Over-aggressive tuning risks knock and premature component wear due to the engine's urban-focused calibration.
In combined driving, expect 6.0–6.8 L/100km (47–41 mpg UK). City driving may reach 7.5 L/100km (38 mpg), while highway runs can achieve 5.4 L/100km (52 mpg). Real-world economy depends heavily on driving style. The engine is tuned for urban efficiency rather than long-range cruising.
Yes. The 350 A3.000 is an interference engine. If the timing belt fails or jumps, pistons can contact open valves, resulting in bent valves or damaged pistons. Immediate attention to any belt noise or missed service interval is essential to avoid major engine damage.
Fiat specifies SAE 5W-30 oil meeting ACEA A1/B1 or Fiat M111 04000 specification. Use of API SN/CF or higher is acceptable. Change oil every 15,000 km or 12 months to ensure valve train protection and prevent sludge buildup, especially in stop-start driving conditions.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.