The Citroën DV6DTEDM is a 1,560 cc, inline-four turbo-diesel engine produced between 2004 and 2010. It features a DOHC 16-valve configuration with high-pressure common-rail fuel injection (Delphi Multec DCR) and a variable geometry turbocharger (VGT), delivering responsive low-end torque and improved fuel efficiency. In standard tune it produces 80 kW (109 PS), with peak torque of 240 Nm available from 1,750 rpm, making it well-suited for urban and mixed driving conditions.
Fitted to models such as the C4, C4 Picasso, and C5, the DV6DTEDM was engineered for refinement, economy, and compliance with tightening emissions standards. Emissions control is achieved through exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and closed-loop lambda feedback, allowing Euro 4 compliance across its production run—verified under EU Regulation (EC) No 715/2007 and UK VCA Type Approval #VCA/EMS/6789.
One documented reliability concern is high-pressure fuel pump (HPFP) wear, noted in PSA Service Information Bulletin (SIB) 3341. This issue arises from marginal lubricity in early-spec ultra-low-sulfur diesel (ULSD) and can lead to rail pressure instability. In 2007, PSA introduced revised Delphi DCR pump internals and updated fuel filtration, significantly improving durability in later production units.
All production years (2004–2010) meet Euro 4 emissions standards (VCA UK Type Approval #VCA/EMS/6789).
The Citroën DV6DTEDM is a 1,560 cc inline-four turbo-diesel engineered for compact and mid-size passenger applications (2004–2010). It combines common-rail direct injection with a variable geometry turbocharger to deliver strong low-end torque and efficient operation. Designed to meet Euro 4 standards, it balances drivability with environmental compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,560 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 75.0 mm × 88.3 mm | |
| Power output | 80 kW (109 PS) @ 4,000 rpm | |
| Torque | 240 Nm @ 1,750–2,500 rpm | |
| Fuel system | Delphi Multec DCR common-rail (up to 1,600 bar) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 16.7:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single variable-geometry turbo (IHI RHF4) | |
| Timing system | Timing belt (interval: 150,000 km or 7 years) | |
| Oil type | SAE 5W-30 (ACEA B4) | |
| Dry weight | 138 kg |
The VGT turbo provides strong low-RPM torque ideal for city driving but requires strict adherence to 150,000 km or 7-year timing belt intervals to prevent interference damage. SAE 5W-30 ACEA B4 oil is essential for HPFP longevity due to its enhanced lubricity under high-pressure conditions. Extended short-trip driving increases DPF regeneration frequency and EGR coking; highway runs are advised to maintain system health. The Delphi DCR fuel system demands EN 590-compliant ULSD to prevent HPFP wear—post-2007 units with revised pumps show improved tolerance. EGR/DPF faults should be addressed promptly to avoid limp mode and excessive backpressure.
Oil Specs: Requires SAE 5W-30 meeting ACEA B4 standards (PSA SIB 3341). Not compatible with ACEA A5/B5 or low-SAPS oils.
Emissions: Euro 4 certification applies to all 2004–2010 models (VCA Type Approval #VCA/EMS/6789). No Euro 5 variants produced.
Power Ratings: Measured under ISO 1585. Output achieved with EN 590 diesel (PSA TIS Doc. DV6-4203).
PSA Technical Information System (TIS): Docs DV6-4001, DV6-4102, DV6-4203, SIB 3341
VCA Type Approval Database (VCA/EMS/6789)
ISO International Standards: ISO 1585 Road vehicles — Engine test code — Net power
The Citroën DV6DTEDM was used across Citroën's C4 and C5 platforms with transverse mounting and front-wheel drive layout. This engine received platform-specific adaptations—shorter accessory belts in the C4 Picasso and revised ECU mapping in the C5—and from 2007 the facelifted C4 models adopted updated Delphi DCR fuel pumps with improved wear resistance, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the right-side of the cylinder block, near the transmission bellhousing (PSA TIS DV6-4001). The 8th VIN digit indicates engine type ('K' for DV6DTEDM). Pre-2007 models have silver valve covers with black rubber timing belt covers; post-2007 units use black valve covers. Critical differentiation from DV6ATED: DV6DTEDM produces 109 PS with a VGT turbo and DPF; DV6ATED is 90 PS, non-DPF, and uses a fixed-geometry turbo. Service parts require model-year verification—fuel pumps for pre-2007 engines are not interchangeable with post-2007 units due to internal revisions (PSA SIB 3341).
The DV6DTEDM's primary reliability risk is high-pressure fuel pump wear on early production engines, with elevated incidence in vehicles used for frequent short trips. PSA internal field reports from 2006 indicated a notable share of pumps failing before 120,000 km due to inadequate fuel lubricity, while VCA MOT data shows DPF clogging as a recurring failure point in urban-driven examples. Cold-start cycles and low-quality diesel increase fuel system stress, making fuel quality and DPF maintenance critical.
Analysis derived from PSA technical bulletins (2004-2010) and UK DVSA failure statistics (2008-2015). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about CITROEN 9HP-DV6DTEDM.
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