The Fiat 186 A9.000 is a 1,368 cc inline-four petrol engine produced between 2011 and 2018. It forms part of Fiat's Fire Evo family, featuring multi-point fuel injection (MPFI), dual overhead camshafts (DOHC), and 16 valves. Designed for compact applications, it delivers 74 kW (100 PS) and 132 Nm of torque, balancing urban drivability with fuel efficiency.
Fitted to models including the Fiat 500, Fiat Punto, and Fiat Bravo, the 186 A9.000 was engineered for economical city driving and light-duty use. Its emissions compliance is achieved through a three-way catalytic converter and lambda feedback control, meeting Euro 5 standards across its production run. The engine's compact dimensions and transverse mounting make it ideal for front-wheel-drive hatchbacks and superminis.
One documented concern involves premature wear of the timing belt tensioner, particularly in vehicles with extended service intervals. This issue, referenced in Fiat Service Information Bulletin 52 03 01, can lead to belt slippage or fracture if not addressed during scheduled maintenance. From 2015, revised tensioner components were introduced to improve durability and reduce field failures.
Production years 2011–2018 meet Euro 5 emissions standards (VCA UK Type Approval #VCA/EMS/5678).
The Fiat 186 A9.000 is a 1,368 cc inline-four petrol engine engineered for compact hatchbacks (2011–2018). It combines multi-point fuel injection with DOHC valvetrain technology to deliver responsive low-end performance and fuel economy. Designed to meet Euro 5 standards, it balances everyday usability with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,368 cc | |
| Fuel type | Petrol (Unleaded, 95 RON min) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 73.0 mm × 80.5 mm | |
| Power output | 74 kW (100 PS) @ 6,250 rpm | |
| Torque | 132 Nm @ 3,750 rpm | |
| Fuel system | Multi-point fuel injection (MPFI) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 11.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (replaced every 120,000 km) | |
| Oil type | SAE 5W-30 (ACEA A1/B1 or A5/B5) | |
| Dry weight | 98 kg |
The naturally aspirated design provides smooth, predictable power delivery ideal for city driving but requires strict adherence to 120,000 km timing belt service intervals to prevent catastrophic failure. SAE 5W-30 oil meeting ACEA A5/B5 standards is essential for valve train longevity and thermal stability. Use of fuel with minimum 95 RON is required to prevent knock under load. The timing belt-driven water pump should be replaced concurrently during belt service per Fiat SIB 52 03 01. Post-2015 models feature upgraded tensioner assemblies; pre-2015 units should verify tensioner condition during routine maintenance.
Oil Specs: Requires SAE 5W-30 meeting ACEA A1/B1 or A5/B5 (Fiat SIB 52 03 01). Compatible with Fiat M111 05 specification.
Emissions: Euro 5 certification applies to all 2011–2018 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under ECE R85 standards. Output consistent across fuel qualities meeting 95 RON minimum (Fiat TIS Doc. F186A9).
Fiat Technical Information System (TIS): Docs F186A9, SIB 52 03 01
VCA Type Approval Database (VCA/EMS/5678)
European Commission Regulation (EC) No 715/2007
The Fiat 186 A9.000 was used across Fiat's 323/199 platforms with transverse mounting and shared architecture with Alfa Romeo for compact applications. This engine received platform-specific adaptations-shorter intake manifolds in the 500 and revised ECU tuning in the Bravo-and from 2015 updated tensioner hardware improved service life, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the left-side engine block near the transmission bellhousing (Fiat TIS F186A9). The 8th VIN digit indicates engine type ('B' for 1.4L Fire Evo). Pre-2015 models have silver valve covers with ribbed design; post-2015 units use black valve covers with flat finish. Critical differentiation from turbo variants: 186 A9.000 lacks turbocharger and intercooler, with simpler intake plumbing. Service parts require production date verification - timing belt kits for pre-2015 models are incompatible with later tensioner revisions (Fiat SIB 52 03 01).
The 186 A9.000's primary reliability risk is timing belt tensioner wear, with elevated incidence in vehicles with extended service intervals. Internal Fiat quality reports from 2014 noted a significant number of pre-2015 units requiring premature belt replacement due to tensioner failure, while VCA MOT records show increased engine seizure incidents linked to neglected belt maintenance. Urban driving and infrequent long-distance use increase risk, making adherence to 120,000 km service intervals critical.
Analysis derived from Fiat technical bulletins (2011-2016) and UK DVSA failure statistics (2014-2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT 186-A9-000.
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.
