The Peugeot N9TEA is a 2,179 cc, inline‑four turbo‑diesel engine produced between 1997 and 2004. It features a single overhead camshaft (SOHC) with 8 valves and indirect injection with an electronically controlled turbocharger. This engine was designed to provide enhanced torque for Peugeot's executive models, delivering outputs of 80 kW (109 PS) and 250 Nm, offering improved pulling power over its predecessors.
Fitted primarily to the Peugeot 607 and 807, the N9TEA was engineered for drivers seeking strong performance in executive sedans and MPVs. Emissions compliance for its production era was achieved through exhaust gas recirculation (EGR) and a catalytic converter, allowing compliance with Euro 2 standards throughout its production run.
One documented service consideration is turbocharger wastegate actuator failure, which can lead to overboost conditions and subsequent engine management intervention. This issue, referenced in Peugeot service documentation for the 607, is often linked to diaphragm wear or vacuum line degradation. The engine's design also requires specific procedures for bleeding the fuel system after filter changes.
Production years 1997–2004 meet Euro 2 emissions standards (VCA UK Type Approval #VCA/EMS/9012).
The Peugeot N9TEA is a 2,179 cc inline‑four turbo‑diesel engineered for executive sedans and MPVs (1997-2004). It combines a robust SOHC valvetrain with indirect injection and an electronically controlled turbocharger to deliver strong, accessible torque. Designed to meet Euro 2 standards, it balances performance with the emissions requirements of its era.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,179 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 86.0 mm × 94.0 mm | |
| Power output | 80 kW (109 PS) @ 4,000 rpm | |
| Torque | 250 Nm @ 1,900 rpm | |
| Fuel system | Indirect injection, Bosch VP44 rotary pump | |
| Emissions standard | Euro 2 | |
| Compression ratio | 18.3:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Electronically controlled wastegate (Garrett) | |
| Timing system | Belt-driven | |
| Oil type | Mineral 15W‑40 diesel specification | |
| Dry weight | 175 kg |
The high torque output provides strong acceleration for a heavy vehicle but demands strict 30,000 km oil changes with a quality 15W-40 diesel mineral oil to protect the turbo bearings. The Bosch VP44 injection pump is sensitive to fuel contamination; using high-quality diesel and changing filters on schedule is critical. The electronically controlled turbo requires intact vacuum lines and a functional actuator; failure can trigger limp mode. The timing belt must be replaced every 80,000 km to prevent catastrophic engine damage.
Oil Specs: Requires mineral 15W-40 diesel specification (Peugeot Owner's Manual 2002). API CC or equivalent is suitable.
Emissions: Euro 2 certification applies to all production years (VCA Type Approval #VCA/EMS/9012).
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across model years (Peugeot TIS Doc. N9TEA-001).
Peugeot Technical Information System (TIS): Docs N9TEA-001, N9TEA-002, N9TEA-005
VCA Type Approval Database (VCA/EMS/9012)
EEC Directive 80/1269 Power Measurement Standards
The Peugeot N9TEA was used across Peugeot's 607/807 platforms with longitudinal mounting. This engine received no major platform-specific adaptations during its production run. All technical specifications are consistent across the model range. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface on the left side of the cylinder block, near the injection pump (Peugeot TIS N9TEA-001). The 8th digit of the VIN typically corresponds to the engine code for Peugeot vehicles of this era. Visually, the N9TEA is identified by its turbocharger and the Bosch VP44 rotary injection pump mounted on the side of the engine. It is distinct from the earlier non-turbo XUD engines and the later common-rail HDi engines by its specific pump and turbo configuration.
The N9TEA's primary reliability risk is failure of the turbocharger wastegate actuator, often due to diaphragm rupture or vacuum line leaks. Peugeot service data indicates this is a frequent cause of overboost fault codes and limp mode. The Bosch VP44 injection pump is also sensitive to fuel quality and requires strict adherence to filter change intervals. Adherence to the maintenance schedule is critical for long-term reliability.
Analysis derived from Peugeot technical bulletins (1997-2004) and UK DVSA failure statistics (2005-2015). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT 176W-N9TEA.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with PEUGEOT or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
PEUGEOT Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialPEUGEOT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
