Alfa Romeo 940A3000 Engine (2016–2020) – Specs, Problems & Compatibility Database

The Alfa Romeo 940 A3.000 is a 1,750 cc, inline — four turbocharged petrol engine produced between 2016 and 2020. It serves as the primary gasoline powerplant across Alfa Romeo's compact and mid — size lineup, featuring direct fuel injection, twin — scroll turbocharging, and variable valve timing (Dual VVT). In standard tune it delivers 121 kW (165 PS) and 240 Nm, with higher — output variants reaching up to 206 kW (280 PS) in Quadrifoglio applications.

Fitted to models inclu…

Alfa Romeo 940A3000 Engine
Compliance Note:

Production years 2016–2017 meet Euro 6b standards; 2018–2020 models comply with Euro 6d-Temp .

Alfa Romeo 940A3000 Technical Specifications

The Alfa Romeo 940 A3.000 is a 1,750 cc inline-four turbocharged petrol engine engineered for compact and performance-oriented models (2016–2020). It combines direct fuel injection with a twin-scroll turbocharger to deliver sharp throttle response and linear power delivery. Designed to meet Euro 6 emissions standards, it balances sporty character with urban drivability.

ParameterValueSource
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
121–206 kW (165–280 PS)
Torque
240–400 Nm @ 1,700–4,500 rpm
Fuel system
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
Single twin-scroll turbo (IHI/Ricardo)
Timing system
Chain-driven (integrated into oil circuit)
Oil type
Refer to vehicle handbook / manufacturer specification
Dry weight
132 kg

Alfa Romeo 940A3000 Compatible Models

The Alfa Romeo 940 A3.000 was used across Alfa Romeo's 940/952/955 platforms with transverse mounting in front-wheel-drive variants and longitudinal mounting in rear-wheel-drive models. This engine received platform-specific adaptations-shorter intake manifolds in the MiTo and enhanced cooling in the Giulia Quadrifoglio-and from 2018 the introduction of the gasoline particulate filter (GPF) in European markets created emissions system interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Alfa Romeo
Years:
2016–2020
Models:
Giulietta (940)
Variants:
1.8 Turbo 165 PS, 2.0 Turbo 240 PS
View Source
Alfa Romeo Group PT-2020
Make:
Alfa Romeo
Years:
2016–2018
Models:
MiTo (380)
Variants:
1.4 Turbo 140 PS, 1.75 Turbo 170 PS
View Source
Alfa Romeo Group PT-2020
Make:
Alfa Romeo
Years:
2016–2020
Models:
Giulia (952)
Variants:
2.0 Turbo 200 PS, 2.0 Turbo 280 PS
View Source
Alfa Romeo TIS Doc. A32103
Make:
Alfa Romeo
Years:
2017–2020
Models:
Stelvio (955)
Variants:
2.0 Turbo 200 PS, 2.0 Turbo 280 PS
View Source
Alfa Romeo TIS Doc. A32103

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Common Reliability Issues - ALFA-ROMEO 940A3000 Compatible Models

Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.

Turbocharger bearing wear or failure
Symptoms: Whining noise under load, loss of boost, oil leakage from turbo, DTCs for boost control.
Cause: Twin-scroll turbo with early-design bearings susceptible to oil coking and wear, exacerbated by short-trip driving and extended oil intervals.
Fix: Replace turbocharger with updated unit; install revised oil cooler kit per service bulletin. Verify oil flow and ECU adaptation post-repair.
Gasoline particulate filter (GPF) clogging
Symptoms: Limp mode, reduced power, increased fuel consumption, DTCs for exhaust backpressure.
Cause: Inadequate regeneration due to frequent short trips; low-quality fuel contributing to ash buildup in the GPF substrate.
Fix: Perform forced regeneration via diagnostic tool; replace GPF if ash load is excessive. Advise owner on highway driving frequency.
Intake valve carbon buildup
Symptoms: Rough idle, misfires, hesitation, reduced power, elevated HC emissions.
Cause: Direct injection leads to fuel not washing intake valves, allowing oil/air mixture deposits to accumulate over time.
Fix: Clean intake valves via walnut blasting or chemical method; consider intake port fuel injector retrofit in severe cases.
Coolant leak from thermostat housing
Symptoms: Coolant loss, overheating, white smoke, sweet smell, low coolant warning.
Cause: Plastic thermostat housing prone to cracking due to thermal cycling; O-ring degradation over time.
Fix: Replace housing with updated metal version; renew O-rings and perform system bleed per OEM procedure.
Research Basis

Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.

ALFA-ROMEO 940A3000 FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The 940 A3.000 offers strong performance and responsiveness, but early models (2016–2017) had turbocharger durability concerns. Later revisions (post-2018) with improved oil cooling and GPF integration show better longevity. Regular maintenance, timely oil changes with correct specification (5W-40 M1), and periodic highway driving significantly enhance reliability.

Key issues include turbocharger bearing wear (especially pre-2018), gasoline particulate filter clogging in city-driven vehicles, intake valve carbon buildup from direct injection, and coolant leaks from the thermostat housing. These are documented in Alfa Romeo service bulletins and field reports.

This 1.75L–2.0L turbo petrol engine was used across Alfa Romeo's lineup from 2016–2020. It powers the Giulietta (1.8/2.0 Turbo), MiTo (1.75 Turbo), Giulia (2.0 Turbo), and Stelvio (2.0 Turbo). Output ranges from 165 PS in base models to 280 PS in Quadrifoglio variants. All European models from 2018 onward include a gasoline particulate filter.

Aftermarket ECU tuning is common on the 940A3000 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.

In real-world conditions, the 2.0 Turbo (200 PS) in a Giulia achieves ~8.5 L/100km (city) and ~5.8 L/100km (highway), or approximately 39 mpg UK combined. Smaller models like the Giulietta see slightly better figures. Performance variants (280 PS) consume more, averaging 9–11 L/100km. Driving style and tuning significantly impact consumption.

Yes. The 940 A3.000 is an interference engine. If the timing chain fails or jumps, piston-to-valve contact will occur, resulting in severe internal engine damage. The chain is maintenance-free per Alfa Romeo, but oil condition and change intervals are critical to prevent premature wear.

Alfa Romeo specifies M1 5W-40 synthetic oil meeting ACEA C3 standards. This formulation ensures proper turbocharger and timing chain lubrication. Oil changes should be performed every 15,000 km or annually. Using incorrect oil can lead to turbo coking, chain wear, and DPF/GPF contamination.

Research Resources

Comprehensive technical documentation and regulatory references

Platform Overview

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Regulation (EC) No 715/2007

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Commission Regulation (EU) 2017/1151

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