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 f…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The AHS (DW10FD) is a powerful and refined engine, but its long-term reliability is closely tied to the EGR cooler, which is a known weak point. Vehicles used primarily for long journeys tend to fare better. Strict adherence to oil change intervals and using the correct 0W-30 oil are paramount for protecting the turbo and fuel system.
The most frequent issues are EGR cooler leaks causing coolant contamination, DPF clogging from short trips, AdBlue system faults (injector/sensors), and potential wear in the high-pressure fuel pump. These are well-documented in PSA service bulletins and owner reports.
This 2.0L BlueHDi 180 engine was used in the second-generation 508 (sedan/fastback), 3008 (SUV), and 5008 (SUV) from 2018 to 2023. It was typically fitted to higher-spec GT and GT Line trims across these models.
Yes, the DW10FD is tunable. ECU remaps can safely increase power to around 200-220 PS and torque to 450 Nm. The stock internals are robust, but supporting modifications like an upgraded intercooler are recommended for stage 2 tunes. Always use a reputable tuner.
Official combined figures are around 5.5-6.0 L/100km (51-47 mpg UK). Real-world economy varies significantly: expect 6.5-8.0 L/100km (43-35 mpg UK) in mixed driving, heavily influenced by DPF regeneration cycles and driving style.
Yes. Like virtually all modern engines, the AHS (DW10FD) is an interference design. If the timing chain were to fail, the pistons would collide with the valves, causing catastrophic engine damage. Fortunately, the chain is generally very durable.
Peugeot mandates a specific 0W-30 synthetic oil meeting the PSA B71 2312 specification. Using the correct oil is critical for the longevity of the turbocharger, fuel pump, and emissions systems. Change intervals should not exceed 20,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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