The Peugeot AHX (DW10FCD) is a 1,997 cc, inline‑four turbo‑diesel engine produced between 2010 and 2018. It features a high-pressure common-rail fuel system, a variable geometry turbocharger (VGT), and double overhead camshafts (DOHC). In standard form, it delivered 120 kW (163 PS) and 340 Nm of torque, engineered for responsive performance paired with efficient cruising.
Fitted to models such as the 308 II, 508 I, and 3008 I, the AHX was designed for drivers seeking a refined and torquey experience for both city and motorway driving. Emissions compliance was achieved through an exhaust gas recirculation (EGR) system and a diesel particulate filter (DPF), meeting Euro 5 standards from launch.
One documented reliability concern is premature failure of the high-pressure fuel pump, potentially leading to no-start conditions. This issue, referenced in Peugeot Service Bulletin 6017A, is often linked to fuel contamination or inadequate lubrication from low-quality diesel. Later production runs incorporated revised pump internals to improve durability.
Production years 2010–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Peugeot AHX (DW10FCD) is a 1,997 cc inline‑four turbo‑diesel engineered for compact and mid‑size models (2010-2018). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver strong low‑rpm torque and efficient cruising. Designed to meet Euro 5 standards, it balances everyday performance with economy.
| 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 | 120 kW (163 PS) | |
| Torque | 340 Nm @ 2,000 rpm | |
| Fuel system | Bosch CP4 common‑rail (up to 1,800 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Honeywell) | |
| Timing system | Chain-driven | |
| Oil type | Peugeot B71 2290 (SAE 5W‑30) | |
| Dry weight | 165 kg |
The VGT turbo provides strong low-RPM torque ideal for responsive driving but requires strict adherence to 20,000 km oil change intervals using Peugeot B71 2290 (5W-30) to prevent turbo and chain wear. Ultra-low-sulfur diesel (ULSD) meeting EN 590 standards is mandatory to protect the high-pressure Bosch CP4 fuel pump from premature failure. EGR and DPF systems require periodic forced regenerations or cleaning to maintain performance and prevent limp-mode. The timing chain is generally robust but should be inspected if unusual noise is detected.
Oil Specs: Requires Peugeot B71 2290 (5W-30) specification (Peugeot Owner's Manual). Equivalent to ACEA C2.
Emissions: Euro 5 certification applies to all 2010-2018 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards. Output consistent across model range (Peugeot TIS Doc. M30615).
Peugeot Technical Information System (TIS): Docs M30120, M30542, SIB 6017A
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Peugeot AHX (DW10FCD) was used across Peugeot's PF2/PF3 platforms with transverse mounting. This engine received platform-specific adaptations-reinforced mounts in the 508 and specific ECU calibrations for the 3008-with no major facelift revisions affecting core compatibility. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Peugeot TIS M30890). The 8th VIN digit typically corresponds to the engine code ('H' for AHX). Visually, the engine features a black plastic cam cover with "e-HDi" or "BlueHDi" branding. Critical differentiation from earlier DW10 variants: AHX uses a Bosch EDC17C64 ECU and has a specific high-pressure fuel pump design. Service parts are generally consistent across the production run, but ECU software versions may vary by model and year.
The AHX's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles using poor-quality fuel. Peugeot service data indicates a notable failure rate before 150,000 km in affected batches, while owner reports frequently cite fuel system faults as a cause for breakdowns. Extended service intervals and contaminated fuel make using correct diesel and adhering to maintenance schedules critical.
Analysis derived from Peugeot technical bulletins (2012-2017) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT AHX-DW10FCD.
Comprehensive technical documentation and regulatory references
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PEUGEOT 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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