The Peugeot DW10FC (engine code AHH) is a 1,997 cc, inline‑four turbo‑diesel engine introduced in 2018. It features a double overhead camshaft (DOHC), 16‑valve architecture with a variable geometry turbocharger (VGT) and high‑pressure common‑rail direct injection. Peak output ranges from 110 kW (150 PS) to 132 kW (180 PS), with torque between 340–400 Nm, delivering strong low‑rpm pull and refined performance.
Fitted to models such as the Peugeot 3008 II, 5008 II, and 508 II, the DW10FC was engineered for midsize SUVs and sedans requiring compliance with Euro 6d‑TEMP and later Euro 6d emissions standards. Emissions control is achieved through cooled exhaust gas recirculation (EGR), a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), and a selective catalytic reduction (SCR) system with AdBlue injection.
One documented concern is premature failure of the high-pressure fuel pump drive coupling, which can cause erratic rail pressure and misfires. This issue, highlighted in PSA Group Service Information Bulletin SI‑19‑05, stems from thermal fatigue in the polymer coupling material under sustained high-load conditions. From early 2021 onward, revised couplings with improved thermal resistance were implemented in production.
All production years (2018–present) meet Euro 6d-TEMP (2018–2020) and Euro 6d (2021–present) standards (VCA UK Type Approval #VCA/EMS/10234).
The Peugeot DW10FC (AHH) is a 1,997 cc inline‑four turbo‑diesel engineered for midsize SUVs and sedans (2018–present). It combines DOHC valvetrain architecture with a variable-geometry turbocharger and 2,000-bar common-rail injection to deliver responsive torque and low-end refinement. Designed to meet Euro 6d emissions standards, it integrates AdBlue-based SCR for stringent NOx 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 | 110–132 kW (150–180 PS) @ 3,750 rpm | |
| Torque | 340–400 Nm @ 2,000 rpm | |
| Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
| Emissions standard | Euro 6d-TEMP (2018–2020); Euro 6d (2021–present) | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Garrett or BorgWarner) | |
| Timing system | Chain (front‑mounted) | |
| Oil type | ACEA C2/C3, PSA B71 2312 (SAE 0W‑30) | |
| Dry weight | 135 kg |
The DOHC layout and VGT turbo provide smooth, responsive performance ideal for motorway cruising and urban flexibility but require strict adherence to 20,000 km oil change intervals to protect the high-pressure fuel pump and timing chain. ACEA C2/C3 (PSA B71 2312) low-SAPS 0W‑30 oil is critical to prevent SCR/DPF clogging and ensure proper lubrication of the cam-driven CP4.2 pump. Cold-start idling should be minimized to reduce soot accumulation. Engines built before early 2021 are susceptible to fuel pump coupling failure per PSA SI‑19‑05; inspect rail pressure stability during diagnostics. Use only ultra-low-sulfur diesel (EN 590) with AdBlue meeting ISO 22241 standards.
Oil Specs: Requires ACEA C2/C3, PSA B71 2312 (0W‑30) specification (PSA Owner’s Handbook 508 II, 2019).
Emissions: Euro 6d-TEMP applies to 2018–2020 models; Euro 6d certification applies from 2021 onward (VCA Type Approval #VCA/EMS/10234).
Power Ratings: Measured under EU Regulation 2017/1151 (WLTP). Output varies by application and market (PSA TIS Doc. M32‑701).
PSA Technical Information System (TIS): Docs M32‑701, SI‑19‑05
VCA Type Approval Database (VCA/EMS/10234)
EU Regulation 2017/1151 (WLTP) and (EC) No 715/2007 (Euro 6)
The Peugeot DW10FC (AHH) was used across PSA Group's EMP2 platform with transverse mounting and shared with Citroën, DS, and Opel/Vauxhall. This engine received platform-specific adaptations—revised engine mounts in the 5008 II and modified AdBlue tank routing in the 508 II—and from early 2021 the updated fuel pump coupling created minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the block near the timing cover (PSA TIS M32‑701). The 8th VIN digit indicates engine family ('H' for DW10FC). Visual identification: black plastic valve cover with “BlueHDi” branding, Bosch CP4.2 high-pressure pump driven off the exhaust camshaft, and AdBlue tank integrated into the rear wheel arch. Critical differentiation from DW10FD (mild-hybrid variant): DW10FC lacks belt-integrated starter-generator (BiSG) and has a conventional alternator. Always verify fuel pump coupling part number 96587400 for pre-2021 units.
The DW10FC's primary reliability risk is high-pressure fuel pump drive coupling failure in pre-2021 builds, with elevated incidence in vehicles subjected to sustained motorway driving or towing. PSA internal quality reports from 2020 noted measurable coupling degradation before 120,000 km in fleet applications, while UK DVSA MOT data shows SCR/AdBlue system faults as a growing cause of test rejection. Extended oil intervals and incorrect oil specification accelerate wear, making oil discipline and AdBlue quality critical.
Analysis derived from PSA technical bulletins (2018–2022) and UK DVSA failure statistics (2020–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT AHH-DW10FC.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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