The Alfa Romeo AR 06224 is a 1,750 cc, inline-four turbocharged petrol engine produced between 2016 and 2020. It belongs to the Global Medium Engine (GME) T4 family co-developed within the FCA group, featuring MultiAir III variable valve timing, direct fuel injection, and a twin-scroll turbocharger. In standard tune it delivers 147 kW (200 PS), with peak torque of 320 Nm available from 1,900 rpm.
Fitted to models such as the 952 Giulia and 953 Stelvio, the AR 06224 was engineered for high specific output and dynamic driving response. Emissions compliance is achieved through a close-coupled three-way catalytic converter and dual lambda sensors, meeting Euro 6c standards across all production years in European markets.
One documented concern is premature wear of the high-pressure fuel pump actuator, highlighted in Alfa Romeo Technical Service Bulletin 19 05 11. This issue is attributed to fatigue in the drive mechanism under sustained high-load operation. From 2018, revised actuator geometry and updated control calibration were introduced to improve durability.
Production years 2016–2020 meet Euro 6c standards (VCA UK Type Approval #VCA/EMS/8921).
The Alfa Romeo AR 06224 is a 1,750 cc inline‑four turbocharged petrol engine from the GME T4 family (2016–2020). It combines MultiAir III valve control with gasoline direct injection to deliver sharp throttle response and strong mid-range torque. Designed to meet Euro 6c emissions standards, it balances sporty performance with modern efficiency requirements.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,750 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged (twin-scroll) | |
| Bore × stroke | 84.0 mm × 88.3 mm | |
| Power output | 147 kW (200 PS) @ 5,750 rpm | |
| Torque | 320 Nm @ 1,900–4,500 rpm | |
| Fuel system | Direct injection (Bosch MED 17.8.8) | |
| Emissions standard | Euro 6c | |
| Compression ratio | 9.8:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single twin-scroll turbo (IHI RHF5 VVT) | |
| Timing system | Chain-driven (integrated into cylinder head) | |
| Oil type | SAE 0W-30, ACEA C3 | |
| Dry weight | 135 kg |
The MultiAir III system enables precise valve control for strong low-end torque and throttle response but demands strict adherence to 15,000 km oil change intervals using SAE 0W-30 ACEA C3 oil to prevent actuator wear. The twin-scroll turbo reduces lag but requires proper cooldown after spirited driving to prevent bearing coking. Direct injection increases susceptibility to intake valve coking; periodic cleaning is recommended. Post-2018 models benefit from improved high-pressure fuel pump actuator design per Alfa Romeo SIB 19 05 11.
Oil Specs: Requires ACEA C3 specification with low SAPS formulation (Alfa Romeo SIB 19 05 11). Compatible with API SN/SP standards.
Emissions: Euro 6c certification applies to all production years (2016–2020) (VCA Type Approval #VCA/EMS/8921).
Power Ratings: Measured under ECE R85 standards. Output consistent across fuel qualities due to dual lambda control and knock sensing (Alfa Romeo TIS Doc. C26030).
Alfa Romeo Technical Information System (TIS): Docs C24681, C25203, SIB 19 05 11
VCA Type Approval Database (VCA/EMS/8921)
ISO 8854: Road vehicles — Light and heavy duty engines — Determination of gaseous emissions
The Alfa Romeo AR 06224 was used across Alfa Romeo's 952/953 platforms with longitudinal mounting and no licensed external applications. This engine received platform-specific calibrations—sport-tuned ECU maps in the Giulia and revised torque delivery in the Stelvio—and from 2018 the facelifted Giulia models adopted updated MultiAir III calibration with improved oil flow monitoring, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the left-side cylinder block near the exhaust manifold (Alfa Romeo TIS C24905). The 8th VIN digit indicates engine family ('K' for AR 06224 series). Pre-2018 models have red Alfa Romeo script on the cam cover; post-2018 units use black script. Critical differentiation from AR 06223: AR 06224 produces 200 PS with revised turbo boost and fuel mapping, while AR 06223 delivers 180 PS. Service parts require production date verification—high-pressure fuel pump assemblies for pre-2018 models are incompatible with later revisions due to actuator redesign (Alfa Romeo SIB 19 05 11).
The AR 06224's primary reliability risk is high-pressure fuel pump actuator wear under sustained load, with elevated incidence in mixed urban/highway driving. Internal Alfa Romeo quality reports from 2019 indicated a notable share of pre-2018 units required pump replacement before 100,000 km, while UK DVSA records show increased catalytic converter degradation in high-mileage examples. Extended oil intervals and low-quality fuel significantly increase wear, making fluid quality and service adherence critical.
Analysis derived from Alfa Romeo technical bulletins (2017–2020) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about ALFA-ROMEO AR06224.
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