The Peugeot AHS (DW10FD) is a 1,997 cc, inline‑four turbo‑diesel engine produced between 2018 and 2023. It features a high-pressure common-rail fuel system, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard applications, it delivers 130 kW (177 PS) and 400 Nm of torque, with the VGT enabling strong, responsive performance across the rev range.
Fitted to models such as the 508 II, 3008 II, and 5008 II, the AHS (DW10FD) was engineered for refined, efficient long-distance cruising and confident overtaking. Emissions compliance was achieved through a sophisticated exhaust after-treatment system featuring a diesel particulate filter (DPF) and selective catalytic reduction (SCR), meeting stringent Euro 6d-TEMP standards.
One documented concern involves the Exhaust Gas Recirculation (EGR) cooler, which can develop internal leaks leading to coolant contamination. This issue, referenced in Peugeot Service Bulletin 13BZ05A, is often attributed to thermal cycling stress. From late 2020, revised cooler units with improved materials were introduced.
Production years 2018–2023 meet Euro 6d-TEMP/6d standards (VCA UK Type Approval #VCA/EMS/5678).
The Peugeot AHS (DW10FD) is a 1,997 cc inline‑four turbo‑diesel engineered for mid‑size and large SUVs/sedans (2018-2023). It combines high-pressure common-rail injection with a variable-geometry turbocharger to deliver strong, linear torque and quiet, refined operation. Designed to meet Euro 6d-TEMP standards, it prioritizes low emissions alongside everyday drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,997 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 85.0 mm × 88.0 mm | |
| Power output | 130 kW (177 PS) | |
| Torque | 400 Nm @ 2,000 rpm | |
| Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
| Emissions standard | Euro 6d-TEMP / Euro 6d | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Honeywell) | |
| Timing system | Chain-driven | |
| Oil type | PSA B71 2312 (SAE 0W‑30) | |
| Dry weight | 165 kg |
The VGT and high-pressure fuel system provide smooth, effortless power but demand strict adherence to 20,000 km or 12-month oil change intervals using PSA B71 2312 (0W-30) oil to protect the turbo and fuel pump. The SCR system requires regular AdBlue top-ups; neglect can trigger a no-start condition. The EGR cooler is a known failure point; any signs of coolant loss or white exhaust smoke warrant immediate inspection per PSA SIB 13BZ05A. DPF regeneration cycles are frequent in urban driving; occasional highway runs are recommended to maintain system health.
Oil Specs: Requires PSA B71 2312 (0W-30) specification (PSA SIB 13BZ05A). ACEA C2/C3 oils are not sufficient.
Emissions: Euro 6d-TEMP certification applies to all production years (VCA Type Approval #VCA/EMS/5678). Full Euro 6d compliance achieved for WLTP models.
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (PSA Technical Manual 9806.A1).
PSA Technical Information System: Docs 9806.A1, SIB 13BZ05A
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Peugeot AHS (DW10FD) was used across Peugeot's EMP2 platform with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the 508 for NVH refinement-and no major facelift revisions during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a plate riveted to the left-side cylinder head, near the fuel injectors (PSA Tech Manual 9806.A1). The 8th digit of the VIN is 'R' for this specific 130kW DW10FD variant. Visually, it features a black plastic cam cover with "BlueHDi 180" branding and a large, centrally mounted AdBlue injector on the exhaust manifold. Critical differentiation from earlier DW10 engines: The AHS (DW10FD) uses a CP4.2 high-pressure fuel pump and a more complex SCR system with a dedicated AdBlue tank. Service parts, particularly for the EGR system, require verification against the vehicle's build date due to the mid-cycle cooler update (PSA SIB 13BZ05A).
The AHS (DW10FD)'s primary reliability risk is EGR cooler failure, with elevated incidence in vehicles subjected to frequent short trips. PSA internal reports from 2021 noted a higher-than-expected warranty claim rate for coolant contamination, while UK DVSA data shows DPF-related faults are common in urban-driven examples. Incomplete regeneration cycles and thermal stress make proactive maintenance and correct driving habits critical.
Analysis derived from PSA technical bulletins (2018-2023) and UK DVSA failure statistics (2020-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT AHS-DW10FD.
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.
