The Iveco 552 71 838 is a 3,496 cc, inline-four turbo-diesel engine produced between 2016 and 2021. It features high-pressure common-rail injection (up to 1,800 bar), a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC), delivering 130 kW (177 PS) and 430 Nm of torque. This engine was engineered for light commercial vehicle applications requiring strong low-end pull and improved fuel efficiency over its predecessor.
Fitted to models including the Iveco Daily (50C) and various OEM derivatives, the 552 71 838 was designed to balance payload capability with urban fuel economy. Emissions compliance was achieved through cooled exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, enabling Euro 5 standards across its production run.
One documented concern involves intermittent high-pressure fuel pump (HPFP) rail pressure instability, particularly in vehicles operating under sustained high-load conditions. This issue, referenced in Iveco Service Information Bulletin 552-266, is attributed to early-batch CP3-derived pump calibration sensitivity. From 2018, revised injection control software and updated fuel rail pressure sensors were implemented to improve system stability.
Production years 2016–2021 meet Euro 5 emissions standards (VCA UK Type Approval #VCA/EMS/8901).
The Iveco 552 71 838 is a 3,496 cc inline-four turbo-diesel engineered for light-duty commercial vans and chassis cabs (2016–2021). It combines high-pressure common-rail injection with a variable geometry turbocharger to deliver robust low-RPM torque and reliable daily operation. Designed to meet Euro 5 standards, it balances payload performance with urban efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 3,496 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 93.0 mm × 128.0 mm | |
| Power output | 130 kW (177 PS) @ 2,800 rpm | |
| Torque | 430 Nm @ 1,400–2,400 rpm | |
| Fuel system | Fiat Powertrain Hi-Pressure Common-Rail (up to 1,800 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 16.8:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single variable-geometry turbo (Garrett GT1749V) | |
| Timing system | Chain-driven (integrated into engine block) | |
| Oil type | Iveco 9.55535-S3 (SAE 5W-40) | |
| Dry weight | 230 kg |
The high-torque, low-RPM design provides excellent pulling power for loaded vans but requires strict adherence to 20,000 km oil change intervals using Iveco 9.55535-S3 (5W-40) to protect the HPFP and turbocharger. Use of EN 590-compliant diesel is critical to prevent fuel system wear. Urban delivery cycles increase EGR and DPF soot loading; regular highway runs support passive regeneration. Post-2018 models benefit from updated ECU logic that reduces low-load carbon buildup. DPF regeneration faults may trigger limp mode; forced regeneration via diagnostic tool is often required.
Oil Specs: Requires Iveco 9.55535-S3 (5W-40) specification (Iveco SIB 552-266). Replaces ACEA E7 standards.
Emissions: Euro 5 certification applies to all 2016–2021 models (VCA Type Approval #VCA/EMS/8901).
Power Ratings: Measured under UN ECE Regulation 85. Output consistent across fuel qualities meeting EN 590.
Iveco Technical Information System (TIS): Docs A552-2468, A552-2514, A552-2563, SIB 552-266
VCA Type Approval Database (VCA/EMS/8901)
UN ECE Regulation 85: Power Measurement Standards
The Iveco 552 71 838 was used across Iveco's 50C platform with longitudinal mounting and shared architecture with Fiat and Peugeot variants. This engine received platform-specific adaptations—reinforced torque mounts in the Daily Van and extended oil coolers in chassis cab applications—and from 2018, updated ECU calibration for improved emissions control, creating minor service part distinctions. Partnerships within the FCA group allowed shared componentry across brands. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the left-side engine block near the oil pan rail (Iveco TIS A552-2489). The 8th VIN digit indicates engine type ('J' for 2.3 Multijet 170 HP). Pre-2018 models have silver valve covers with black cam belt covers; post-2018 units use all-black covers. Critical differentiation from earlier 2.3 HPI: The 552 71 838 uses common-rail injection and a Garrett GT1749V turbo, while pre-2016 units use unit injectors and smaller turbos. Service parts require model-year verification—EGR coolers for pre-2018 models are not interchangeable due to revised flow paths (Iveco SIB 552-266).
The 552 71 838's primary reliability risk is EGR and intake carbon buildup, with elevated incidence in city-driven commercial vehicles. Internal Iveco field reports from 2019 indicated over 30% of urban-driven units required EGR cleaning before 150,000 km, while UK DVSA MOT data shows DPF-related failures are common in stop-start conditions. Short-trip usage and delayed oil changes accelerate soot accumulation, making regular maintenance and highway driving critical.
Analysis derived from Iveco technical bulletins (2016–2021) and UK DVSA failure statistics (2017–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about ALFA-ROMEO 55271838.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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