Engine Code

ALFA-ROMEO AR67204 engine (2022–2025) – Specs, Problems & Compatibility Database

The Alfa Romeo AR 67204 is a 1,995 cc, inline-four, turbocharged petrol engine produced between 2022 and 2025. It belongs to Alfa Romeo's FireFly engine family, featuring gasoline direct injection (GDI) and dual overhead camshafts (DOHC). In standard tune, it delivers 169 kW (230 PS) and 330 Nm of torque, with hybrid-assisted variants reaching 191 kW (260 PS) in performance applications.

Fitted to models such as the Giulia (952) and Stelvio (954), the AR 67204 was engineered for responsive driving dynamics and refined urban performance. Emissions compliance was achieved through a three-way catalytic converter, closed-loop lambda control, and gasoline particulate filter (GPF), allowing Euro 6d-TEMP compliance across its production run for European markets.

One documented concern is high-pressure fuel pump (HPFP) wear under sustained high-load operation, noted in Alfa Romeo Technical Bulletin 65/2023. This issue is typically associated with extended service intervals and use of non-specification fuel. Later production units (post-2024) received revised internal components and updated lubrication channels to improve durability.

BMW N47D20A Engine
Compliance Note:

Production years 2022–2025 meet Euro 6d-TEMP emissions standards (VCA UK Type Approval #VCA/EMS/9012).

AR67204 Technical Specifications

The Alfa Romeo AR 67204 is a 1,995 cc inline-four turbocharged petrol engine designed for compact and mid-size applications (2022–2025). It combines gasoline direct injection with twin-scroll turbocharging to deliver strong mid-range power and responsive throttle delivery. Engineered to meet Euro 6d-TEMP standards, it balances urban drivability with performance-oriented characteristics.

ParameterValueSource
Displacement1,995 cc
Fuel typePetrol
ConfigurationInline-4, DOHC, 16-valve
AspirationTurbocharged (IHI twin-scroll)
Bore × stroke88.3 mm × 81.3 mm
Power output169–191 kW (230–260 PS) @ 5,750 rpm
Torque330 Nm @ 2,500–4,500 rpm
Fuel systemGasoline direct injection (GDI)
Emissions standardEuro 6d-TEMP
Compression ratio9.8:1
Cooling systemWater-cooled
TurbochargerIHI IS2A-25GK-71.5
Timing systemChain-driven (single-row)
Oil typeSAE 5W-40, ACEA A3/B4
Dry weight135 kg
Practical Implications

The twin-scroll turbo provides strong mid-range torque ideal for spirited driving but requires strict adherence to 15,000 km oil change intervals to prevent turbo bearing and timing chain wear. SAE 5W-40 ACEA A3/B4 oil is essential to maintain lubrication under high thermal loads. Cold starts should be followed by gradual warm-up to ensure oil circulation to the turbocharger. Direct injection leads to intake valve coking; periodic walnut blasting is recommended. Post-2024 models feature revised HPFP internals; pre-2024 units should be inspected per Alfa Romeo SIB 65/2023. The gasoline particulate filter (GPF) requires unleaded petrol meeting EN 228 standards to prevent blockage.

Data Verification Notes

Oil Specs: Requires SAE 5W-40, ACEA A3/B4 specification (Alfa Romeo SIB 65/2023). Compatible with Fiat 9.55575-S1 specification.

Emissions: Euro 6d-TEMP certification applies to all 2022–2025 models (VCA Type Approval #VCA/EMS/9012).

Power Ratings: Measured under ECE R85 standards. Output consistent across EU fuel grades (RON 95).

Primary Sources

Alfa Romeo Technical Information System (TIS): Docs A20982, A20994, A20917, SIB 65/2023

VCA Type Approval Database (VCA/EMS/9012)

European Commission Regulation (EC) No 715/2007

AR67204 Compatible Models

The Alfa Romeo AR 67204 was used across Alfa Romeo's 952/954 platforms with longitudinal mounting. This engine received platform-specific adaptations-tuned intake manifolds in the Giulia and revised exhaust routing in the Stelvio-and from 2024 received minor internal revisions to the high-pressure fuel pump system, creating service part distinctions. All adaptations are documented in OEM technical bulletins.

Make:
Alfa Romeo
Years:
2022–2025
Models:
Giulia (952)
Variants:
2.0 Turbo, 230 HP / 260 HP (mild hybrid)
View Source
Alfa Romeo Group PT-2024
Make:
Alfa Romeo
Years:
2022–2025
Models:
Stelvio (954)
Variants:
2.0 Turbo, 230 HP / 260 HP (mild hybrid)
View Source
Alfa Romeo Group PT-2024
Identification Guidance

Locate the engine code stamped vertically on the right-side cylinder block, near the transmission bellhousing (Alfa Romeo TIS A20907). The 8th VIN digit indicates engine type ('F' for AR 67204). Pre-2024 models have a silver engine cover with '2.0 Turbo' badge; post-2024 units feature a black cover with updated branding. Critical differentiation from AR 67201: AR 67204 includes 48V mild hybrid integration (BISG starter-generator); AR 67201 lacks hybrid components. Service parts require production date verification—high-pressure fuel pumps before 06/2024 are incompatible with later revisions per Alfa Romeo SIB 65/2023.

Identification Details

Evidence:

Alfa Romeo TIS Doc. A20907

Location:

Stamped vertically on the right-side cylinder block near the transmission bellhousing (Alfa Romeo TIS A20907).

Visual Cues:

  • Pre-2024: Silver engine cover with '2.0 Turbo' badge
  • Post-2024: Black engine cover with updated Alfa Romeo script and hybrid badge
Fuel Pump Upgrade

Issue:

Early AR 67204 units experienced high-pressure fuel pump wear under sustained high-load conditions.

Evidence:

Alfa Romeo SIB 65/2023

Recommendation:

Inspect or replace fuel pump with updated OEM part per Alfa Romeo SIB 65/2023. Use only EN 228-compliant fuel.

Common Reliability Issues - ALFA-ROMEO AR67204

The AR 67204's primary reliability risk is high-pressure fuel pump wear on early builds, with elevated incidence in mixed urban/highway driving. Internal Alfa Romeo quality reports from 2023 indicated a notable number of pre-2024 engines requiring fuel system service before 80,000 km, while UK DVSA data shows ignition coil failures as a frequent cause of MOT emissions failures. Short trip driving and delayed maintenance increase thermal stress, making fuel quality and oil interval adherence critical.

High-pressure fuel pump wear
Symptoms: Hard starting, misfires under load, reduced power, DTCs related to fuel rail pressure.
Cause: Early-design pump internals prone to wear under thermal stress; exacerbated by low-octane or contaminated fuel.
Fix: Replace with updated OEM fuel pump per SIB 65/2023; inspect fuel filter and verify rail pressure stability.
Ignition coil carbon tracking
Symptoms: Misfires under load, rough idle, illuminated check engine light, increased hydrocarbon emissions.
Cause: Moisture and oil mist accumulation on coil boots leading to electrical tracking and insulation breakdown.
Fix: Replace affected ignition coils with revised OEM parts; apply dielectric grease and inspect valve cover gasket for leaks.
Timing chain tensioner wear
Symptoms: Rattle at cold start, timing-related DTCs, potential loss of compression if chain skips.
Cause: Plastic guide rails and tensioner shoes susceptible to wear over time, especially with extended oil intervals.
Fix: Inspect tensioner and guides during service; replace with updated components if wear is detected. Use correct oil spec.
Intake valve coking
Symptoms: Hesitation at low RPM, unstable idle, reduced throttle response, limp mode activation.
Cause: Direct injection leads to absence of fuel washing over intake valves, allowing carbon buildup from oil and combustion byproducts.
Fix: Perform walnut shell blasting of intake valves every 60,000 km; consider fuel additives and longer warm-up periods.
Research Basis

Analysis derived from Alfa Romeo technical bulletins (2022–2025) and UK DVSA failure statistics (2022–2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about ALFA-ROMEO AR67204

Find answers to most commonly asked questions about ALFA-ROMEO AR67204.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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