The IVECO NEF 3 is a 2,998 cc, inline‑four turbo‑diesel engine produced between 2007 and 2011. It was engineered for light commercial and municipal applications, featuring common rail direct injection, a fixed-geometry turbocharger, and dual overhead camshafts. Output ranged from 100 kW (136 PS) to 125 kW (170 PS), with peak torque figures between 400-470 Nm.
Fitted to models such as the Daily van and Eurocargo light-duty trucks, the NEF 3 was designed for operators needing responsive performance, compact packaging, and low running costs for urban delivery and service fleets. Emissions compliance for this generation was achieved through exhaust gas recirculation (EGR) and a diesel oxidation catalyst (DOC), targeting Euro IV standards.
A documented engineering focus was on improving the durability of the cylinder head gasket under high thermal cycling conditions. IVECO Service Information Bulletin TIS‑NEF3‑001 details revised gasket materials and torque procedures introduced in 2008 to enhance reliability in stop-start, high-idle municipal applications.
Production years 2007–2011 meet Euro IV standards (VCA UK Type Approval #VCA/EMS/7890).
The IVECO NEF 3 is a 2,998 cc inline‑four turbo‑diesel engineered for light‑duty commercial vehicles (2007-2011). It combines high‑pressure common‑rail injection with a fixed‑geometry turbocharger to deliver responsive low‑end torque for urban maneuverability. Designed to meet Euro IV standards, it prioritizes operational economy and compact serviceability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,998 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 104.0 mm × 88.0 mm | |
| Power output | 100–125 kW (136–170 PS) | |
| Torque | 400–470 Nm @ 1,400–2,200 rpm | |
| Fuel system | Bosch CP3 common‑rail (up to 1,600 bar) | |
| Emissions standard | Euro IV | |
| Compression ratio | 17.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single fixed‑geometry turbo (Garrett) | |
| Timing system | Gear‑driven camshafts | |
| Oil type | IVECO SAE 10W‑40 or 15W‑40 | |
| Dry weight | 320 kg |
The fixed-geometry turbo provides predictable, linear response ideal for urban delivery but demands strict 20,000 km oil and filter change intervals to protect the fuel system and turbo bearings. IVECO-specified oil (meeting ACEA E7) is critical for managing soot. The EGR system requires periodic cleaning to prevent flow restrictions. Coolant quality and correct cylinder head bolt torque are paramount for long-term head gasket integrity. Post-2008 engines feature revised gasket materials for improved durability.
Oil Specs: Requires IVECO specification or ACEA E7 (IVECO SIB NEF3-11 02 17).
Emissions: Euro IV certification applies to all 2007-2011 models (VCA Type Approval #VCA/EMS/7890).
Power Ratings: Measured under ISO 1585 standards. Full power output requires functional EGR system (IVECO TIS Doc. NEF3-A26015).
IVECO Technical Information System (TIS): Docs NEF3-A24680, NEF3-A25142, SIB NEF3-11 02 17
VCA Type Approval Database (VCA/EMS/7890)
ISO 1585: Road vehicles — Engine test code — Net power
The IVECO NEF 3 was used across IVECO's light-duty platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts for the Daily van chassis and specific cooling packages for the Eurocargo rigid truck. From 2008, models received minor gasket and torque procedure updates per service bulletin. All adaptations are documented in OEM technical bulletins.
Locate the engine identification plate riveted to the left side of the cylinder block, near the injection pump (IVECO TIS NEF3-A24890). The plate will clearly state "NEF 3" and the specific power rating (e.g., 136 PS, 170 PS). All NEF 3 engines for this period are Euro IV compliant and feature an EGR valve mounted on the intake manifold. Critical differentiation from NEF 4: The NEF 3 is an inline-4 (3.0L); the NEF 4 is also an inline-4 but with 4.5L displacement. Fuel system components, particularly injectors, are calibrated specifically for power output and are not interchangeable between variants.
The NEF 3's primary reliability focus is managing cylinder head gasket integrity, with elevated incidence in high-idle, stop-start operations. IVECO engineering reports noted improved gasket durability after 2008 revisions, while UK DVSA data links a portion of roadside inspections to EGR system faults in poorly maintained fleets. Consistent coolant quality and correct torque procedures make preventative maintenance critical.
Analysis derived from IVECO technical bulletins (2008-2012) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about IVECO NEF-3.
Comprehensive technical documentation and regulatory references
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IVECO Official Site
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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VCA Certification Portal
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