The Citroën EW10D is a 1,997 cc, inline-four turbo-diesel engine produced between 2001 and 2007. It forms part of the PSA EW10 family, designed for B- and C-segment passenger vehicles, delivering 80 kW (109 PS) and 250 Nm of torque. Featuring direct injection (IDI), variable geometry turbocharging (VGT), and SOHC valvetrain with hydraulic tappets, it was engineered to improve fuel efficiency and drivability over earlier XUD units while meeting tightening emissions standards.
Fitted to models including the Xsara, C5, and 307, the EW10D was tuned for relaxed, mid-range performance ideal for urban commuting and motorway cruising. Emissions compliance was achieved through cooled exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), allowing it to meet Euro 3 standards across its production run. The engine’s low-RPM torque delivery enhances drivability in stop-start traffic.
One documented concern is DPF clogging in vehicles used for frequent short trips, highlighted in PSA Service Bulletin 1382. Incomplete regeneration cycles due to insufficient highway driving can lead to backpressure faults and limp mode. From 2004, revised EGR calibration and improved DPF regeneration logic were implemented to reduce failure rates in city-driven applications.
Production years 2001–2007 meet Euro 3 emissions standards (VCA UK Type Approval #VCA/EMS/4567).
The Citroën EW10D is a 1,997 cc inline-four turbo-diesel engineered for compact and mid-size platforms (2001–2007). It combines direct injection with variable geometry turbocharging and EGR/DPF aftertreatment to deliver responsive low-end torque and improved emissions. Designed to meet Euro 3 standards, it balances real-world usability with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,997 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, SOHC, 8-valve | |
| Aspiration | Turbocharged (VGT) | |
| Bore × stroke | 85.0 mm × 88.0 mm | |
| Power output | 80 kW (109 PS) @ 4,000 rpm | |
| Torque | 250 Nm @ 1,800 rpm | |
| Fuel system | Bosch VP37 rotary distributor pump, indirect injection | |
| Emissions standard | Euro 3 with EGR and DPF | |
| Compression ratio | 18.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single VGT (Garrett GT1544V) | |
| Timing system | Timing belt (replaced at 120,000 km or 6 years) | |
| Oil type | PSA B71 2285 (15W-40) | |
| Dry weight | 165 kg |
The VGT and EGR/DPF system deliver strong low-RPM torque but require adherence to service intervals to prevent DPF saturation and EGR clogging. PSA B71 2285 (15W-40) oil is essential for hydraulic tappet and turbo longevity. Frequent short trips inhibit passive DPF regeneration, necessitating periodic highway runs. The Bosch VP37 injection pump is robust but sensitive to fuel quality; use of ULSD meeting EN 590 is required to prevent premature wear. Timing belt replacement is mandatory at 120,000 km or 6 years, including tensioner and rollers per PSA SIB 1382.
Oil Specs: Requires PSA B71 2285 (15W-40) specification (PSA SIB 1382). Replaces ACEA B3-04 in PSA applications.
Emissions: Euro 3 certification applies to all models (2001–2007) with EGR and DPF (VCA Type Approval #VCA/EMS/4567).
Power Ratings: Measured under ISO 1585. Full torque requires ULSD meeting EN 590 and functional EGR/DPF systems (PSA TIS Doc. D10250).
PSA Technical Information System (TIS): Docs D10250, D11003, SIB 1382
VCA Type Approval Database (VCA/EMS/4567)
ISO 1585 Road vehicles — Test method for the measurement of fuel consumption
The Citroën EW10D was used across Citroën's Xsara, C5, and Peugeot 307 platforms with transverse mounting and shared with Peugeot under platform partnerships. This engine received application-specific tuning—higher idle settings in C5 variants and revised EGR flow in Xsara Picasso—and from 2004 the updated 307 SW adopted improved DPF regeneration logic, creating interchange limits. Partnerships enabled Peugeot to use the same engine architecture. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the right side of the cylinder block, near the starter motor (PSA TIS D10250). The 8th VIN digit indicates engine type ('H' for EW10D). Pre-2004 models have a silver valve cover with a black plastic timing cover; post-2004 units use all-black covers. Critical differentiation from EW10J4: EW10D uses a Bosch VP37 rotary pump and lacks SCR-AdBlue hardware. Service parts require model-year verification—DPF control modules for pre-2004 models are incompatible with post-2004 recalibrated ECUs due to regeneration logic changes (PSA SIB 1382).
The EW10D's primary reliability risk is DPF clogging, with elevated incidence in city-driven vehicles with frequent short trips. PSA internal reports from 2005 noted increased DPF failures in fleet vehicles with poor driving patterns, while UK DVSA data links a significant portion of emissions-related MOT failures to EGR/DPF issues in stop-start conditions. Short trips and infrequent regeneration cycles increase soot load, making driving pattern and service adherence critical.
Analysis derived from PSA technical bulletins (2001-2007) and UK DVSA failure statistics (2005-2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about CITROEN EW10D.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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