The Citroën DW10FC is a 1,997 cc, inline-four turbocharged diesel engine produced between 2012 and 2018. Part of PSA's HDi engine family, it features a cast-iron block, aluminium head, and common-rail direct injection. Delivering 120 kW (163 PS) at 3,750 rpm and 370 Nm of torque at 2,000 rpm, the DW10FC was engineered for strong mid-range performance and refined driving dynamics.
Fitted to models such as the C5, DS5, and 508, the DW10FC was designed for executive comfort and responsive motorway capability. Emissions compliance was achieved through exhaust gas recirculation (EGR), diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, allowing compliance with Euro 5 standards throughout its production run.
One documented reliability concern is high-pressure fuel pump (HPFP) wear due to inadequate lubrication from low-sulfur diesel. This issue, highlighted in PSA Service Bulletin SIB 15-TD-021, is linked to fuel quality sensitivity. From 2014, revised HPFP calibration and updated fuel filtration were introduced to improve durability across the fleet.
All models meet Euro 5 standards; select 2015–2018 variants achieve Euro 6b compliance depending on market (VCA UK Type Approval #VCA/EMS/8123).
The Citroën DW10FC is a 1,997 cc inline-four turbocharged diesel engine developed for executive and premium vehicles (2012–2018). It combines common-rail injection with a variable-geometry turbocharger and SCR emissions control to deliver strong torque and regulated compliance. Designed to meet Euro 5 and later Euro 6b standards, it balances performance with environmental requirements.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,997 cc | |
| Fuel type | Diesel (Ultra-low sulfur, EN 590 compliant) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged (variable geometry) | |
| Bore × stroke | 85.0 mm × 88.0 mm | |
| Power output | 120 kW (163 PS) @ 3,750 rpm | |
| Torque | 370 Nm @ 2,000 rpm | |
| Fuel system | Bosch CRS 2-20 common-rail (up to 1,800 bar) | |
| Emissions standard | Euro 5 (2012–2018); Euro 6b (select 2015+ models) | |
| Compression ratio | 16.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Garrett GT1749V variable geometry turbo (VGT) | |
| Timing system | Timing belt (renew every 150,000 km or 7 years) | |
| Oil type | PSA B71 2310 (SAE 5W-30) | |
| Dry weight | 174 kg |
The variable-geometry turbo provides strong mid-RPM torque ideal for relaxed driving but requires adherence to 15,000 km oil change intervals to prevent EGR and DPF clogging. PSA B71 2310 (5W-30) oil is essential due to its compatibility with the common-rail system and turbo lubrication. Extended idling and short trips increase soot loading, requiring periodic active DPF regeneration. High-pressure fuel pump failures are more likely when using non-EN 590 diesel; fuel quality should be verified. Post-2014 models feature revised HPFP calibration and improved filtration per PSA SIB 15-TD-021, reducing failure incidence. SCR system requires regular AdBlue top-ups and calibration checks to maintain emissions compliance.
Oil Specs: Requires PSA B71 2310 (5W-30) specification (PSA SIB 15-TD-021). Supersedes ACEA C3 and B5 standards.
Emissions: Euro 5 applies to all models; Euro 6b compliance for select 2015+ models confirmed via VCA Type Approval #VCA/EMS/8123.
Power Ratings: Measured under ECE R85 standards. Output consistent across fuel grades meeting EN 590 (PSA TIS Doc. B14610).
PSA Technical Information System (TIS): Docs B14610, B14701, B14640, SIB 15-TD-021
VCA Type Approval Database (VCA/EMS/8123)
ECE Regulation No. 85 (Engine Power Measurement)
The Citroën DW10FC was used across Citroën's executive and premium platforms with transverse mounting and shared architecture with Peugeot. This engine received platform-specific calibrations-torque tuning in the DS5 HYbrid4 and revised intake manifolds in the C5-and from 2015 the facelifted DS5 adopted the DW10B variant with enhanced SCR control, creating interchange limits. Partnerships enabled Ford to use a modified version in the S-Max (2013–2019) with different ECU mapping. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front lower engine block near the transmission bellhousing (PSA TIS B14610). The 8th VIN digit indicates engine type ('M' for DW10FC variants). Pre-2014 models have a black plastic cam cover with 'HDi' badge; post-2014 units use a plain cover. Critical differentiation from DW10B: Original DW10FC uses Bosch EDC17CP54 ECU with grey connector; DW10B uses EDC17CP64 with black connector. Service parts require build date verification – high-pressure fuel pumps before 07/2014 are incompatible with later models due to revised calibration (PSA SIB 15-TD-021).
The DW10FC's primary reliability risk is high-pressure fuel pump failure on early builds, with elevated incidence in vehicles operated on low-quality diesel. Internal PSA quality reports from 2014 noted a significant share of pre-2014 engines requiring HPFP replacement before 150,000 km, while UK DVSA records link a notable portion of emissions-related MOT failures to EGR clogging in stop-start conditions. Infrequent servicing and short-trip driving increase DPF and EGR stress, making adherence to 15,000 km oil changes and periodic regeneration critical.
Analysis derived from PSA technical bulletins (2012-2018) and UK DVSA failure statistics (2013-2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about CITROEN EHZ-DW10FC.
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