The Peugeot AHX (DW10FD) 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 a double overhead camshaft (DOHC) design. In standard tune, it produces 120 kW (163 PS) and 340 Nm of torque, with its VGT enabling strong, responsive power delivery from low engine speeds for confident overtaking.
Fitted to models including the 308 II, 3008 I, and 508 I, th…
All production years 2010–2018 meet Euro 5 standards .
The Peugeot AHX (DW10FD) is a 1,997 cc inline‑four turbo‑diesel engineered for compact and mid‑size models (2010-2018). It combines high-pressure common-rail injection with a variable-geometry turbocharger to deliver responsive performance and efficient highway cruising. Designed to meet Euro 5 standards, it balances power output with environmental compliance.
| 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 Peugeot AHX (DW10FD) was used across Peugeot's PF2 and PF3 platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the 508 and a specific exhaust routing in the 3008-with no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The AHX is generally robust with responsive performance, but its longevity heavily depends on maintenance and fuel quality. The high-pressure fuel pump is its primary known weakness. With strict adherence to oil and fuel filter changes using the correct specifications, and ensuring regular DPF regeneration, it can be a very reliable engine for high mileage.
The most frequent issues are failures of the high-pressure fuel pump, DPF clogging (especially with urban driving), and carbon buildup affecting the EGR valve and cooler. Turbo actuator faults are also documented. These are covered in Peugeot service bulletins and are common failure points in DVSA data.
This 2.0L diesel engine was used in the Peugeot 308 II (2013-2018), 3008 I (2010-2016), and 508 I (2010-2018). It was also shared with Citroën, appearing in the C4 Picasso II (2013-2018). It was typically badged as HDi 163 or BlueHDi 150/180 depending on the model and year.
Aftermarket ECU tuning is common on the AHX-DW10FD platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Official combined figures are around 4.5 L/100km (63 mpg UK) for a 308, but real-world consumption is typically 5.5-6.5 L/100km (43-51 mpg UK) depending on the model, driving style, and journey type. Highway driving yields the best economy, while short urban trips significantly increase consumption due to DPF regeneration cycles.
Yes. Like virtually all modern engines, the AHX (DW10FD) is an interference design. If the timing chain were to fail or jump, the pistons would collide with the open valves, causing catastrophic internal engine damage. Fortunately, the chain is generally very durable with proper oil maintenance.
Peugeot mandates the use of a 5W-30 synthetic oil meeting the B71 2290 specification. This low-SAPS (Sulphated Ash, Phosphorus, Sulphur) oil is crucial for protecting the DPF and catalytic converter. Using the correct oil is vital for long-term engine and emissions system health.
Comprehensive technical documentation and regulatory references
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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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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