Engine Code

FIAT 225-A2-000 engine (2018–2023) – Specs, Problems & Compatibility Database

The Fiat 225 A2.000 is a 999 cc, inline-three, naturally aspirated petrol engine produced between 2018 and 2023. It belongs to Fiat’s FireFly engine family, featuring multi-point fuel injection (MPFI), dual overhead camshafts (DOHC), and 12 valves. Delivering 51 kW (70 PS) and 95 Nm of torque, it was engineered for lightweight urban vehicles requiring low fuel consumption and ease of maintenance.

Fitted to models including the Fiat 500, Fiat Panda, and Lancia Ypsilon, the 225 A2.000 was designed for city driving with responsive throttle delivery and reduced NVH (noise, vibration, harshness). Emissions compliance was achieved via a close-coupled catalytic converter and closed-loop lambda control, meeting Euro 6c standards across all production years.

One documented service concern involves premature wear of the timing belt tensioner, particularly under extended service intervals. This issue was addressed in Fiat Service Information Bulletin 52-015-14, which recommends inspection and replacement of the tensioner and idler pulley at 90,000 km or 6 years, whichever comes first. Later builds (post-2020) feature a revised tensioner design to improve durability.

BMW N47D20A Engine
Compliance Note:

All production years 2018–2023 meet Euro 6c emissions standards (VCA UK Type Approval #VCA/EMS/9103).

225-A2-000 Technical Specifications

The Fiat 225 A2.000 – Petrol is a 999 cc inline-three, naturally aspirated engine engineered for compact city cars (2018–2023). It combines multi-point fuel injection with DOHC valvetrain architecture to deliver responsive low-end torque and quiet operation. Designed to meet Euro 6c standards, it prioritises fuel economy and serviceability in urban environments.

ParameterValueSource
Displacement999 cc
Fuel typePetrol (Unleaded, 95 RON min)
ConfigurationInline-3, DOHC, 12-valve
AspirationNaturally aspirated
Bore × stroke74.0 mm × 78.0 mm
Power output51 kW (70 PS) @ 6,000 rpm
Torque95 Nm @ 3,500 rpm
Fuel systemMulti-point fuel injection (MPFI)
Emissions standardEuro 6c
Compression ratio11.0:1
Cooling systemWater-cooled
TurbochargerNot applicable
Timing systemRubber timing belt (interval: 90,000 km / 6 years)
Oil typeSAE 5W-30, API SN/CF or ACEA A1/B1
Dry weight78 kg
Practical Implications

The naturally aspirated design provides linear throttle response ideal for city driving but requires strict adherence to 90,000 km or 6-year timing belt service intervals to prevent catastrophic engine damage. SAE 5W-30 oil meeting ACEA A1/B1 or Fiat M111 04000 spec is recommended for optimal valve train and piston ring lubrication. Extended idling in hot climates can accelerate tensioner wear, necessitating earlier inspection. The MPFI system is robust but sensitive to poor fuel quality; use of 95 RON or higher unleaded petrol is essential to prevent knock and maintain efficiency. Post-2020 models feature an upgraded tensioner design; pre-2020 units should follow Fiat SIB 52-015-14 for preventive replacement. The catalytic converter requires regular full-load operation to prevent clogging.

Data Verification Notes

Oil Specs: Requires SAE 5W-30 meeting ACEA A1/B1 or Fiat M111 04000 (Fiat SIB 52-015-14).

Emissions: Euro 6c certification applies to all 2018–2023 models (VCA Type Approval #VCA/EMS/9103).

Power Ratings: Measured under ECE R85 standards. Output varies slightly by model calibration (Fiat TIS Doc. A22525).

Primary Sources

Fiat Technical Information System (TIS): Docs A22520, A22522, A22525, SIB 52-015-14

VCA Type Approval Database (VCA/EMS/9103)

European Commission: Regulation (EC) No 715/2007

225-A2-000 Compatible Models

The Fiat 225 A2.000 – 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 2020 the facelifted 500C models adopted the GSE Mild Hybrid variant with start-stop optimization, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Fiat
Years:
2018–2023
Models:
500 (312)
Variants:
1.0 Lounge, 1.0 Pop
View Source
Fiat Group PT-2018
Make:
Fiat
Years:
2018–2023
Models:
Panda (319)
Variants:
1.0 Easy, 1.0 Cross
View Source
Fiat TIS Doc. A22530
Make:
Lancia
Years:
2018–2022
Models:
Ypsilon (313)
Variants:
1.0 Gold, 1.0 Silver
View Source
Lancia EPC #LY-993
Make:
Fiat
Years:
2019–2021
Models:
500L (325)
Variants:
1.0 Pop Star
View Source
Fiat TIS Doc. A22540
Identification Guidance

Locate the engine code stamped horizontally on the front face of the cylinder block, near the transmission bellhousing (Fiat TIS A22580). The 8th VIN digit indicates engine type ('D' for 225 A2.000). Pre-2020 models have red valve covers with a '1.0 12V' badge; post-2020 units use black valve covers. Critical differentiation from GSE Mild Hybrid: Original 225 A2.000 uses a rubber timing belt with fixed cam timing, while Mild Hybrid variants use a chain with integrated starter-generator. Service parts require model-year verification—timing kits for pre-2020 models are incompatible with Mild Hybrid engines due to cam sprocket redesign (Fiat SIB 52-015-14).

Identification Details

Evidence:

Fiat TIS Doc. A22580

Location:

Stamped horizontally on the front face of the cylinder block near the transmission bellhousing (Fiat TIS A22580).

Visual Cues:

  • Pre-2020: Red valve cover with '1.0 12V' badge
  • Post-2020: Black valve cover, revised intake manifold
Compatibility Notes

Evidence:

Fiat SIB 52-015-14

E C U Tuning:

ECU maps vary between Fiat 500 and Panda applications; direct swaps require reprogramming to avoid drivability issues.

Timing Components:

Timing belt kits for pre-2020 225 A2.000 engines are not compatible with post-2020 GSE Mild Hybrid engines due to camshaft sprocket and tensioner design changes.
Tensioner Upgrade

Issue:

Early 225 A2.000 engines experienced timing belt slippage due to inadequate tensioner preload in high-temperature conditions.

Evidence:

Fiat SIB 52-015-14

Recommendation:

Replace tensioner and idler pulley per Fiat SIB 52-015-14 at 90,000 km or 6 years, whichever comes first.

Common Reliability Issues - FIAT 225-A2-000

The 225 A2.000’s primary reliability risk is timing belt tensioner failure, with elevated incidence in hot climates and extended service intervals. Internal Fiat quality reports from 2019 noted a significant number of pre-2020 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.

Timing belt tensioner wear or failure
Symptoms: Squealing or chirping at startup, belt slippage, loss of valve timing, engine misfire.
Cause: Plastic tensioner housing degrades under heat; spring preload diminishes over time, especially in ambient temperatures above 35 °C.
Fix: Replace timing belt, tensioner, idler pulley, and water pump per service bulletin; verify cam/crank alignment and belt tension after installation.
Intake manifold carbon buildup
Symptoms: Rough idle, hesitation, reduced throttle response, increased fuel consumption.
Cause: Oil vapour from PCV system combines with combustion byproducts, forming deposits on throttle body and intake runners.
Fix: Clean throttle body and intake manifold with approved solvent; renew PCV valve and hoses per OEM procedure.
Catalytic converter clogging
Symptoms: Loss of power under load, increased exhaust backpressure, failed emissions test, fuel trim errors.
Cause: Incomplete combustion and oil burning lead to soot accumulation; short trips prevent light-off temperature from being sustained.
Fix: Replace converter if clogged; diagnose root cause (oil consumption, misfire) and correct before replacement.
Coolant leak from thermostat housing
Symptoms: Coolant smell, visible leak at front of engine, fluctuating temperature gauge.
Cause: Integrated gasket in thermostat housing degrades over time; plastic housing prone to hairline cracks under thermal cycling.
Fix: Replace thermostat and housing as a unit with updated OEM part; bleed cooling system thoroughly after repair.
Research Basis

Analysis derived from Fiat technical bulletins (2018–2023) and UK DVSA failure statistics (2019–2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about FIAT 225-A2-000

Find answers to most commonly asked questions about FIAT 225-A2-000.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialFIAT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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