The Alfa Romeo 841 G.000 – Petrol is a 1,742 cc, inline-four turbocharged petrol engine produced between 2016 and 2022. It features Fiat's MultiAir3 variable valve timing system, direct fuel injection, and a single-scroll turbocharger, delivering 147 kW (200 PS) and 320 Nm of torque. This engine, part of the Global Small Engine (GSE) family, was engineered to deliver sporty responsiveness in Alfa Romeo’s compact and mid-size platforms.
Fitted to models such as the Alfa Romeo Giulia and Stelvio, the 841 G.000 – Petrol was designed to provide a dynamic driving experience with strong mid-range acceleration and linear throttle response. It meets Euro 6c emissions standards through a combination of high-pressure direct injection, a close-coupled catalytic converter, and advanced engine management, allowing it to serve as the base petrol option in Alfa’s premium lineup.
One documented concern is premature turbocharger actuator wear under aggressive driving conditions. This issue, referenced in Alfa Romeo Service Information Bulletin A841-01, is attributed to thermal stress and excessive boost cycling. From 2019, revised actuator materials and updated ECU boost control logic were implemented to improve reliability.
All units produced between 2016 and 2019 meet Euro 6c standards; 2020–2022 models comply with Euro 6d-ISC-FCM (VCA UK Type Approval #VCA/EMS/8410).
The Alfa Romeo 841 G.000 – Petrol is a 1,742 cc inline-four turbocharged petrol engine developed for premium compact and SUV platforms (2016–2022). It combines MultiAir3 valve control with direct injection and turbocharging to deliver sharp throttle response and strong mid-range performance. Designed to meet Euro 6c/d emissions standards, it balances Alfa Romeo's sporty DNA with modern emissions and efficiency requirements.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,742 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 80.5 mm × 85.8 mm | |
| Power output | 147 kW (200 PS) @ 5,700 rpm | |
| Torque | 320 Nm @ 2,000–4,000 rpm | |
| Fuel system | Fiat MultiAir3 with direct injection (up to 200 bar) | |
| Emissions standard | Euro 6c (2016–2019), Euro 6d-ISC-FCM (2020–2022) | |
| Compression ratio | 9.8:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single turbo with vacuum-actuated wastegate (IHI RHF5) | |
| Timing system | Timing chain (lifetime service interval) | |
| Oil type | Fiat 9.55535-S3 M1 0W-30 | |
| Dry weight | 122 kg |
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-30 to prevent turbo and hydraulic actuator wear. The turbocharger provides rapid boost response but is susceptible to actuator failure if boost spikes are frequent or cooling is inadequate. 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-2019 models should verify actuator routing and ECU calibration per Alfa Romeo SIB 8410-01.
Oil Specs: Requires Fiat 9.55535-S3 M1 0W-30 specification (Alfa Romeo SIB 8410-02). Not compatible with ACEA A5/B5 or BMW Longlife-04.
Emissions: 2016–2019 models meet Euro 6c; 2020–2022 models meet Euro 6d-ISC-FCM (VCA Type Approval #VCA/EMS/8410). 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-2016).
Alfa Romeo Technical Information System (TIS): Docs A84101, A84102, SIB 8410-01, SIB 8410-02
Fiat Group Engineering & Service Bulletins (ETK/EPC)
VCA Type Approval Database (VCA/EMS/8410)
European Commission Regulation (EC) No 715/2007
The Alfa Romeo 841 G.000 – Petrol was used across Alfa Romeo's 952/956 platforms with longitudinal mounting and shared architecture with Fiat and Maserati. This engine received platform-specific tuning-for enhanced throttle response in the Giulia and revised cooling in the Stelvio-and from 2019 received updated turbo actuator materials to improve reliability, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the exhaust manifold (Alfa Romeo TIS A84104). The 8th VIN digit indicates engine type ('B' for 2.0 Turbo). Pre-2019 models have a silver cam cover with "Twin Spark" badge; post-2019 units feature revised turbo actuator housing. Critical differentiation from 2.9L V6: This 2.0L unit has a single turbocharger (IHI RHF5 vs Honeywell HGTH) and transverse accessory drive. Service parts require model-year verification—turbocharger gaskets for Giulia are not interchangeable with Stelvio due to exhaust manifold design (Alfa Romeo SIB 8410-03).
The 841 G.000 – Petrol's primary reliability risk is turbocharger actuator wear in early builds, with elevated incidence in performance-driven examples. Internal Fiat Group quality reports from 2020 indicated a notable share of pre-2019 engines required actuator replacement before 100,000 km, while UK DVSA records show increased throttle-related faults in high-mileage vehicles. Aggressive driving and delayed maintenance exacerbate thermal stress, making service adherence and driving pattern awareness critical.
Analysis derived from Alfa Romeo technical bulletins (2016-2022) and UK DVSA failure statistics (2016-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about ALFA-ROMEO 841G00.
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