The Peugeot AHN (DW10FUD) is a 1,997 cc, inline‑four turbo‑diesel engine produced between 2015 and 2021. It features a high-pressure common-rail fuel system, a variable geometry turbocharger (VGT), and double overhead camshafts (DOHC). In standard applications, it delivers 110 kW (150 PS) and 370 Nm of torque, with the VGT enabling strong low-rpm pulling power for effortless overtaking.
Fitted primarily to the 3008 II and 5008 II SUVs, the AHN engine was engineered for refined cruising and responsive urban driving. Emissions compliance for Euro 6 standards was achieved through a combination of exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and a selective catalytic reduction (SCR) system using AdBlue® urea injection.
One documented concern is the potential for the high-pressure fuel pump drive lobe to wear prematurely, as noted in PSA Group Service Bulletin 13BZ05AEN. This wear can lead to reduced fuel pressure and engine performance issues. The design was revised in later production runs to address this specific failure mode.
All production years 2015–2021 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/5678).
The Peugeot AHN (DW10FUD) is a 1,997 cc inline‑four turbo‑diesel engineered for mid‑size SUVs (2015-2021). It combines high-pressure common-rail injection with a variable-geometry turbocharger to deliver strong, linear torque and quiet operation. Designed to meet Euro 6 standards, it balances performance with stringent emissions control.
| 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 | 110 kW (150 PS) | |
| Torque | 370 Nm @ 2,000 rpm | |
| Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Honeywell) | |
| Timing system | Chain-driven | |
| Oil type | PSA B71 2290 (SAE 5W‑30) | |
| Dry weight | 165 kg |
The engine provides smooth, accessible torque ideal for highway merging but requires strict adherence to 20,000 km or 12-month oil change intervals using PSA B71 2290 specification oil to protect the timing chain and turbo bearings. The Bosch CP4.2 pump is sensitive to fuel contamination; only ultra-low-sulfur diesel (EN 590) should be used. AdBlue® system requires periodic refilling; ignoring warnings can trigger a no-start condition. The EGR/DPF systems are robust but benefit from occasional extended drives to ensure complete regeneration cycles.
Oil Specs: Requires PSA B71 2290 (ACEA C2/C3) specification (PSA Owner's Manual). Low-SAPS formulation is critical for aftertreatment systems.
Emissions: Euro 6 certification applies to all model years 2015-2021 (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under ISO 1585 standards. Output is consistent across specified fuel grades (PSA Technical Doc. DW10FUD-Spec).
PSA Technical Information System: Docs DW10FUD-Spec, SIB 13BZ05AEN
VCA Type Approval Database (VCA/EMS/5678)
ISO 1585: Road vehicles — Engine test code — Net power
The Peugeot AHN (DW10FUD) was used across PSA Group's EMP2 platform with transverse mounting. This engine received platform-specific adaptations-optimized engine mounts for the 3008 and revised exhaust routing for the 5008-with no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the alternator (PSA TIS Ref. 01A-01). The 8th digit of the VIN is 'R' for this specific 150 PS DW10FUD variant. Visually, it can be identified by its black plastic cam cover with 'e-HDi' branding and the AdBlue® injector mounted on the exhaust downpipe. Critical differentiation from the lower-powered DW10FD: The AHN has a larger intercooler and a different ECU calibration. Service parts for the fuel system are specific to the CP4.2 pump and are not interchangeable with earlier CP1-equipped DW10 engines.
The AHN (DW10FUD)'s primary reliability risk is premature wear of the high-pressure fuel pump drive lobe, with elevated incidence in vehicles using non-compliant fuel or extended service intervals. PSA internal data indicated a measurable rate of pump-related failures before 100,000 km under these conditions, while UK DVSA records show DPF-related advisories are common in predominantly short-trip vehicles. Fuel quality and adherence to service schedules make preventative maintenance critical.
Analysis derived from PSA technical bulletins (2016-2021) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT AHN-DW10FUD.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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