The Citroën 9HW (DV6BTED4) is a 1,560 cc, inline-four, turbocharged diesel engine produced between 2008 and 2018. It is part of the PSA DV (Diester/Vert) engine family, co-developed with Ford as part of the DLD family, and designed for efficiency and low emissions. Featuring high-pressure common-rail direct injection, variable geometry turbocharging (VGT), and DOHC 16-valve layout, it produces 88 kW (120 PS) at 3,750 rpm and 320 Nm at 1,750 rpm, delivering strong low-end torque ideal for urban and motorway driving.
Fitted to models such as the C4, C4 Picasso, and C5, the DV6BTED4 was engineered for responsive performance and refined operation in mid-size vehicles. Emissions compliance was achieved through exhaust gas recirculation (EGR), diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, enabling Euro 5 compliance across its production run. The engine’s compact design and transverse mounting allowed for optimal packaging in PSA’s PF2 and PF3 platforms.
One documented concern is premature timing chain wear, particularly in early production units operating under extended oil change intervals. This issue, referenced in PSA Service Information Bulletin SIB-ENG-2012-07, is linked to inadequate lubrication at the chain tensioner and was addressed through revised tensioner design and updated oil pump calibration from 2014 onward.
Production years 2008–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/9823).
The Citroën 9HW (DV6BTED4) is a 1,560 cc inline-four turbocharged diesel engine engineered for mid-size applications (2008–2018). It combines high-pressure common-rail injection with a variable geometry turbocharger to deliver strong low-RPM torque and efficient cruising. Designed to meet Euro 5 standards, it balances performance with acceptable fuel economy and emissions for its class.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,560 cc | |
| Fuel type | Diesel (EN 590 compliant, ULSD) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged (variable geometry) | |
| Bore × stroke | 75.0 mm × 88.3 mm | |
| Power output | 88 kW (120 PS) @ 3,750 rpm | |
| Torque | 320 Nm @ 1,750–2,500 rpm | |
| Fuel system | Bosch CRS 2-20 common-rail (up to 1,800 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water-cooled, electric thermostat | |
| Turbocharger | Honeywell Variable Geometry Turbo (VGT) | |
| Timing system | Timing chain (DOHC) | |
| Oil type | Total Rubia TIR 5W-30 | |
| Dry weight | 142 kg |
The VGT turbo provides strong low-RPM torque ideal for city driving but requires adherence to 15,000 km oil change intervals using PSA-approved 5W-30 to prevent timing chain wear and turbo degradation. Total Rubia TIR 5W-30 oil is critical due to its specific formulation protecting the chain tensioner system. Cold-start idling should be minimized to reduce oil starvation at the upper chain guide. The Bosch CRS 2-20 fuel system demands ultra-low-sulfur diesel (ULSD) meeting EN 590 standards to prevent high-pressure pump failure. Post-2014 models feature revised chain guides; pre-2014 units should have the tensioner upgrade per PSA SIB-ENG-2012-07. EGR/DPF systems require periodic regeneration and cleaning to maintain emissions compliance and prevent limp-mode events.
Oil Specs: Requires Total Rubia TIR 5W-30 specification (PSA SIB-ENG-2012-07). Meets ACEA C3 and PSA B71 2290.
Emissions: Euro 5 certification applies to all models (2008–2018) (VCA Type Approval #VCA/EMS/9823).
Power Ratings: Measured under ECE R85 standards. 88 kW output requires EN 590 diesel with proper AdBlue dosing (PSA TIS Doc. DV6BTED4-PERF-01).
PSA Technical Information System (TIS): Docs DV6BTED4-001, DV6BTED4-002, SIB-ENG-2012-07
VCA Type Approval Database (VCA/EMS/9823)
ISO 1585:1996 Road vehicles — Test code for net power
The Citroën 9HW (DV6BTED4) was used across Citroën's PF2/PF3 platforms with transverse mounting and shared with Peugeot and Ford derivatives. This engine received platform-specific adaptations-reinforced mounts in the C5 and revised intake manifolds in the C4 Picasso-and from 2014 the facelifted C4 adopted updated ECU mapping and SCR calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front face of the cylinder block, near the timing cover (PSA TIS DV6BTED4-ID-01). The 8th VIN digit indicates engine type ('H' for DV6BTED4). Pre-2014 models have silver cam covers with black plastic intake manifolds; post-2014 units use gloss black cam covers. Critical differentiation from DV6TED4: DV6BTED4 features a Honeywell VGT turbo with electronic actuator and SCR/AdBlue system. Service parts require model-year verification—timing kits and EGR valves differ pre- and post-2014 due to revised cooling layout (PSA SIB-ENG-2012-07).
The DV6BTED4's primary reliability risk is timing chain wear in early production units, with elevated incidence in urban driving cycles. PSA internal quality reports from 2013 indicated a significant number of pre-2014 units required chain replacement before 120,000 km, while UK DVSA MOT records show increased DPF and EGR failures linked to oil consumption in neglected engines. Frequent short trips and delayed maintenance amplify wear, making oil quality and service adherence critical.
Analysis derived from PSA technical bulletins (2008–2018) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about CITROEN 9HW-DV6BTED4.
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