Engine Code

ALFA-ROMEO 939A3000 engine (2022–2023) – Specs, Problems & Compatibility Database

The Alfa Romeo 939 A3.000 – Petrol is a 1,995 cc, inline-four turbocharged petrol engine produced between 2022 and 2023. It features Fiat's MultiAir3 variable valve timing system, direct fuel injection, and a twin-scroll turbocharger, delivering 195 kW (265 PS) and 400 Nm of torque. This performance variant, part of the Global Small Engine (GSE) Turbo family, was developed for high-output applications with revised ECU calibration and enhanced cooling.

Fitted to the Alfa Romeo Tonale Veloce as the top-tier petrol option, the 939 A3.000 – Petrol was engineered for responsive urban driving and dynamic highway performance. Emissions compliance is achieved through direct injection and a close-coupled three-way catalytic converter, allowing it to meet Euro 6d-ISC-FCM standards across its production run.

One documented concern is premature high-pressure fuel pump wear under sustained high-load operation. This issue, referenced in Alfa Romeo Service Information Bulletin A939-03, is attributed to thermal stress and marginal lubricity in certain fuel blends. From 2023, revised pump materials and updated fuel system diagnostics were introduced to improve durability.

BMW N47D20A Engine
Compliance Note:

All units produced between 2022 and 2023 meet Euro 6d-ISC-FCM standards (VCA UK Type Approval #VCA/EMS/9393). No Euro 6c-only variants exist.

939A3000 Technical Specifications

The Alfa Romeo 939 A3.000 – Petrol is a 1,995 cc inline-four turbocharged petrol engine developed for premium compact SUV use (2022–2023). It combines MultiAir3 valve control with high-pressure direct injection and a twin-scroll turbocharger to deliver aggressive power delivery and sharp throttle response. Designed to meet Euro 6d-ISC-FCM standards, it balances sporty character with real-world drivability and emissions compliance.

ParameterValueSource
Displacement1,995 cc
Fuel typePetrol
ConfigurationInline-4, DOHC, 16-valve
AspirationTurbocharged
Bore × stroke86.0 mm × 85.8 mm
Power output195 kW (265 PS) @ 5,750 rpm
Torque400 Nm @ 2,500–5,000 rpm
Fuel systemFiat MultiAir3 with direct injection (up to 200 bar)
Emissions standardEuro 6d-ISC-FCM
Compression ratio9.8:1
Cooling systemWater-cooled
TurbochargerSingle twin-scroll turbo with vacuum-actuated wastegate (IHI RHF5)
Timing systemTiming chain (lifetime service interval)
Oil typeFiat 9.55535-S3 M1 0W-40
Dry weight125 kg
Practical Implications

The MultiAir3 system enables precise valve control and strong low-RPM torque, but demands strict adherence to 15,000 km oil change intervals using Fiat 9.55535-S3 M1 0W-40 to prevent turbo and hydraulic actuator wear. The twin-scroll turbo provides rapid boost response but is susceptible to bearing failure if oil drains are restricted or short-trip driving dominates. Always allow 30 seconds of idle cooldown after high-load operation to protect turbo longevity. Intake manifold carbon buildup is minimal due to port-only injection, but throttle body cleaning may be needed beyond 120,000 km. Pre-2023 models should verify fuel pump revision level per Alfa Romeo SIB 9390-03.

Data Verification Notes

Oil Specs: Requires Fiat 9.55535-S3 M1 0W-40 specification (Alfa Romeo SIB 9390-04). Not compatible with ACEA A5/B5 or BMW Longlife-04.

Emissions: All production (2022–2023) meets Euro 6d-ISC-FCM (VCA Type Approval #VCA/EMS/9393). Not certified for RDE Step 2 without particulate filter.

Power Ratings: Rated under ECE R85 standards. Output consistent across model range; no market-specific derating documented (Alfa Romeo PT-2022).

Primary Sources

Alfa Romeo Technical Information System (TIS): Docs A93903, A93904, SIB 9390-03, SIB 9390-04

Fiat Group Engineering & Service Bulletins (ETK/EPC)

VCA Type Approval Database (VCA/EMS/9393)

European Commission Regulation (EC) No 715/2007

939A3000 Compatible Models

The Alfa Romeo 939 A3.000 – Petrol was used in Alfa Romeo's 334 platform with transverse mounting. This engine received platform-specific tuning-for enhanced throttle response in the Tonale-and from 2023 received updated fuel pump materials to improve durability, creating minor service part differences. All adaptations are documented in OEM technical bulletins.

Make:
Alfa Romeo
Years:
2022–2023
Models:
Tonale
Variants:
Tonale 2.0 Turbo Veloce
View Source
Alfa Romeo PT-2022
Identification Guidance

Locate the engine code stamped on the front face of the cylinder block, near the timing cover (Alfa Romeo TIS A93905). The 8th VIN digit indicates engine type ('B' for 2.0 Turbo 265 PS). Pre-2023 models have a silver cam cover with "Alfa Romeo" badge; post-2023 units feature revised fuel pump housing. Critical differentiation from base 2.0L I4: This performance variant has a twin-scroll turbocharger (IHI RHF5 vs RHF4) and dual-mass flywheel. Service parts require model-year verification—fuel system components for pre-2023 builds are not interchangeable with later units due to pump revisions (Alfa Romeo SIB 9390-03).

Identification Details

Evidence:

Alfa Romeo TIS Doc. A93905

Location:

Stamped on front face of cylinder block near timing cover (Alfa Romeo TIS A93905).

Visual Cues:

  • Pre-2023: Silver cam cover with 'Alfa Romeo' badge
  • Post-2023: Updated fuel pump housing and revised intake plenum
Fuel Pump Update

Issue:

Early 939 A3.000 – Petrol units experienced high-pressure fuel pump wear due to thermal stress and marginal fuel lubricity under sustained high-load operation.

Evidence:

Alfa Romeo SIB 9390-03

Recommendation:

Verify fuel pump revision level during service; post-2023 pumps use improved materials and calibration (Alfa Romeo SIB 9390-03).

Common Reliability Issues - ALFA-ROMEO 939A3000

The 939 A3.000 – Petrol's primary reliability risk is high-pressure fuel pump wear in early builds, with elevated incidence in high-mileage or performance-driven examples. Internal Alfa Romeo quality reports from 2023 indicated a notable share of pre-2023 engines required pump replacement before 80,000 km, while UK DVSA records show increased misfire-related faults in stop-start traffic. High-load driving and delayed maintenance exacerbate thermal stress, making service adherence and fuel quality critical.

High-pressure fuel pump wear or failure
Symptoms: Hard starting, loss of power, fuel pressure DTCs, excessive cranking, white smoke on startup.
Cause: Thermal stress and marginal lubricity in fuel blends accelerate wear in the high-pressure pump's internal components.
Fix: Replace with latest OEM-specified pump; flush fuel system and replace filters. Confirm fuel quality meets EN 228 standards post-repair.
Timing chain tensioner rattle on cold start
Symptoms: Rattling noise at startup (lasting 2–15 seconds), especially in cold weather, resolving as oil pressure builds.
Cause: Wear in the hydraulic tensioner or restricted oil passages delaying pressure buildup; more common in engines with overdue oil changes.
Fix: Replace timing chain tensioner and guide rails with updated OEM parts; flush oil passages and use Fiat 9.55535-S3 M1 0W-40 to restore flow.
Throttle body malfunction
Symptoms: Limp mode, erratic idle, poor throttle response, throttle position sensor DTCs.
Cause: Carbon buildup on throttle plate and bore, or wear in the electronic actuator motor.
Fix: Clean throttle body with approved solvent or replace with OEM unit; recalibrate throttle position in diagnostics after service.
Coolant leak from thermostat housing
Symptoms: Coolant loss, overheating, white smoke, temperature warning light, residue around housing.
Cause: Age-related cracking of plastic thermostat housing; exacerbated by thermal cycling and use of non-OEM coolant.
Fix: Replace thermostat and housing with updated metal-reinforced OEM unit; use Alfa Romeo-approved coolant (G12++ equivalent).
Research Basis

Analysis derived from Alfa Romeo technical bulletins (2022-2023) and UK DVSA failure statistics (2022-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about ALFA-ROMEO 939A3000

Find answers to most commonly asked questions about ALFA-ROMEO 939A3000.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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