The Alfa Romeo AR 01713 is a 1,750 cc, inline-four turbocharged petrol engine produced between 2015 and 2020. It forms the core of Alfa Romeo's modern petrol lineup, featuring direct fuel injection, variable valve timing (Dual VVT), and a twin-scroll turbocharger. In standard tune it delivers 147 kW (200 PS), with higher-output Quadrifoglio variants reaching 206 kW (280 PS) and peak torque of 330 Nm available from 1,750 rpm.
Fitted to key models including the 952 Giulia, 956 Stelvio, and 940 MiTo, the AR 01713 was engineered for dynamic responsiveness and driver engagement. Its compact design and front-transverse or rear-transverse mounting (Giulia/Stelvio) support near 50:50 weight distribution. Emissions compliance was achieved via three-way catalytic converter and lambda control, enabling Euro 6b certification across its production run.
One documented concern is premature turbocharger wastegate actuator wear, particularly in early-build 952 chassis. Highlighted in Alfa Romeo Technical Bulletin 56/2017, this issue stems from thermal fatigue in the actuator return spring mechanism. From 2018, revised hardware with improved heat shielding and spring metallurgy was implemented across the range.

Production years 2015–2017 meet Euro 6b standards; 2018–2020 models comply with Euro 6d-TEMP (VCA UK Type Approval #VCA/EMS/5678).
The Alfa Romeo AR 01713 is a 1,750 cc inline-four turbocharged petrol engine engineered for premium compact and mid-size platforms (2015–2020). It combines gasoline direct injection with a twin-scroll turbocharger to deliver sharp throttle response and strong mid-range pull. Designed to meet Euro 6 emissions standards, it balances sporty performance with regulated efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,750 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged (twin-scroll) | |
| Bore × stroke | 86.0 mm × 75.2 mm | |
| Power output | 147–206 kW (200–280 PS) | |
| Torque | 300–330 Nm @ 1,750–4,500 rpm | |
| Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
| Emissions standard | Euro 6b (pre-2018); Euro 6d-TEMP (2018–2020) | |
| Compression ratio | 9.8:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | IHI twin-scroll turbo with vacuum-actuated wastegate | |
| Timing system | Chain-driven (double-row primary, single-row secondary) | |
| Oil type | Fiat 9.55535-S2 (SAE 0W-30) | |
| Dry weight | 135 kg |
The twin-scroll turbo provides strong low-end torque and rapid boost onset, ideal for spirited driving, but requires strict adherence to 15,000 km oil change intervals using Fiat 9.55535-S2 (0W-30) oil to prevent turbo bearing and timing chain wear. Extended idling after high-load operation should be avoided to reduce coking in the turbo actuator mechanism. Direct injection necessitates periodic intake valve cleaning due to lack of fuel wash, a known contributor to hesitation and misfires. Early models (pre-2018) are prone to wastegate actuator spring failure; updated components per Technical Bulletin 56/2017 mitigate this risk. Emissions systems require full operating temperature for accurate diagnostics, affecting cold-start DTC validity.
Oil Specs: Requires Fiat 9.55535-S2 (0W-30) specification (Alfa Romeo SIB 56/2017). Supersedes ACEA C2 requirements.
Emissions: Euro 6b certification applies to pre-2018 models only (VCA Type Approval #VCA/EMS/5678). 2018–2020 models meet Euro 6d-TEMP under WLTP testing.
Power Ratings: Measured under ECE R85 standards. 206 kW output requires premium 98 RON fuel (Alfa Romeo TIS Doc. 60.74.35).
Alfa Romeo Technical Information System (TIS): Docs 60.74.35, SIB 56/2017
VCA Type Approval Database (VCA/EMS/5678)
ISO 1585:1996 Road vehicles — Test method for the measurement of gaseous pollutant emissions
The Alfa Romeo AR 01713 was used across Alfa Romeo's 952/956 platforms with transverse mounting and shared architecture with Fiat Chrysler Automobiles (FCA) global engine programs. This engine received platform-specific adaptations-shorter intake manifolds in the 940 MiTo and reinforced engine mounts in the 956 Stelvio-and from 2018 the facelifted 952 Giulia LCI models adopted revised turbo actuators, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front face of the cylinder block, below the intake manifold (Alfa Romeo TIS 60.74.35). The 8th VIN digit indicates engine type ('B' for AR 01713 petrol turbo). Pre-2018 models have a black plastic intake manifold with visible vacuum actuator linkage; post-2018 units feature revised actuator shrouding. Critical differentiation from non-turbo variants: AR 01713 has a turbocharger mounted to the right-side exhaust manifold and an intercooler atop the engine. Service parts require production date verification—turbo actuators for pre-2018 builds are incompatible with post-LCI models due to internal redesign (Alfa Romeo SIB 56/2017).
The AR 01713's primary reliability risk is turbocharger wastegate actuator wear on early builds, with elevated incidence in mixed urban/highway use. Internal Alfa Romeo quality reports from 2018 noted a significant share of pre-2018 engines requiring actuator replacement before 100,000 km, while UK DVSA records indicate turbo-related DTCs as a leading cause of emissions test failures. Frequent short trips and inadequate cool-down cycles increase thermal stress, making adherence to warm-up and cool-down procedures critical.
Analysis derived from Alfa Romeo technical bulletins (2015-2020) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about ALFA-ROMEO AR01713.
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