The Fiat 937 A4.000 is a 1,368 cc, inline‑four turbocharged petrol engine produced between 2007 and 2011. It features a DOHC 16‑valve layout with MultiAir electro‑hydraulic valve control and direct fuel injection. This technology enables precise air management for improved fuel efficiency and throttle response without sacrificing power.
Fitted to models such as the Grande Punto, Linea, and 500 Abarth, the 937 A4.000 was engineered for spirited performance and agile city driving. Emissions compliance was achieved through advanced engine management and a close‑coupled catalytic converter, meeting Euro 4 standards.
One documented concern is carbon buildup on intake valves, a known characteristic of direct injection engines without port wash. This issue, noted in Fiat Technical Service Bulletin TSB‑09‑123, is linked to fuel spray patterns and can affect idle quality over time. Later revisions incorporated software updates to mitigate the rate of accumulation.
Production years 2007–2011 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/5678).
The Fiat 937 A4.000 is a 1,368 cc inline‑four turbocharged petrol engine engineered for compact performance models (2007-2011). It combines MultiAir valve control with direct injection to deliver responsive power and efficient operation. Designed to meet Euro 4 standards, it balances sporty character with everyday usability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,368 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 72.0 mm × 84.0 mm | |
| Power output | 103–119 kW (140–160 PS) | |
| Torque | 206–230 Nm @ 2,000–4,000 rpm | |
| Fuel system | Gasoline direct injection (GDI) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single turbocharger (Garrett) | |
| Timing system | Chain‑driven | |
| Oil type | Fiat 9.55535‑S1 (SAE 5W‑40) | |
| Dry weight | 105 kg |
The MultiAir system provides crisp throttle response ideal for urban agility but requires adherence to 15,000 km oil change intervals using Fiat 9.55535-S1 (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. Intake valve cleaning is recommended every 60,000 km to maintain idle quality and emissions, as per Fiat TSB 09-123. The chain-driven timing system is generally robust but should be inspected for tensioner wear during major services.
Oil Specs: Requires Fiat 9.55535-S1 (5W-40) specification (Fiat Workshop Manual 937A).
Emissions: Euro 4 certification applies to all 2007–2011 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under ECE R85 standards. 119 kW output requires 95 RON fuel (Fiat Group PT-2010).
Fiat Technical Information System: Docs 937A, TSB 09-123
VCA Type Approval Database (VCA/EMS/5678)
UNECE Regulation No. 85 (Engine Power Measurement)
The Fiat 937 A4.000 was used across Fiat's Small platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the 500 Abarth for track use-and from 2009 minor ECU revisions for emissions, creating no significant 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 937A). The 8th VIN digit often corresponds to engine displacement/type ('B' for 1.4L T-Jet in many markets). Visually, the engine features a prominent black plastic intake manifold with "MultiAir" branding and a single Garrett turbocharger on the exhaust manifold. Critical differentiation from non-turbo 1.4 engines: Presence of intercooler and turbo plumbing. Service parts are generally consistent across variants, but ECU maps differ significantly between 120 PS and 160 PS versions.
The 937 A4.000's primary reliability consideration is carbon buildup on intake valves, inherent to its direct injection design. Fiat service data indicates this is a maintenance item rather than a premature failure, while owner feedback often notes it around 80,000 km. Use of correct fuel grade and periodic cleaning make long-term reliability excellent.
Analysis derived from Fiat technical bulletins (2008-2012) and owner-reported data aggregated from official dealer networks. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT 937-A4-000.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with FIAT or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
FIAT Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
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.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialFIAT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
