The Citroën 4HR (DW12BTED4) is a 2,179 cc, inline-four, turbocharged diesel engine produced between 2008 and 2018. It is part of the PSA DW engine family, developed for higher torque and durability in executive and commercial vehicles. Featuring high-pressure common-rail direct injection, variable geometry turbocharging (VGT), and DOHC 16-valve layout, it produces 120 kW (163 PS) at 3,750 rpm and 370 Nm at 2,000 rpm, delivering strong pulling power ideal for heavy-duty and long-distance applications.
Fitted to models such as the C5, C6, and Jumper, the DW12BTED4 was engineered for smooth, refined performance and enhanced towing capability. 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 longitudinal mounting and robust construction made it suitable for both passenger and light commercial variants.
One documented concern is premature high-pressure fuel pump failure, particularly in early production units operating under frequent short-trip conditions. This issue, referenced in PSA Service Information Bulletin SIB-ENG-2013-09, is linked to inadequate lubrication at the cam-driven plunger and was addressed through revised pump design and updated oil pump calibration from 2012 onward.
Production years 2008–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/9826).
The Citroën 4HR (DW12BTED4) is a 2,179 cc inline-four turbocharged diesel engine engineered for executive and commercial applications (2008–2018). It combines high-pressure common-rail injection with a variable geometry turbocharger to deliver strong low-RPM torque and smooth cruising. Designed to meet Euro 5 standards, it balances performance with acceptable fuel economy and emissions for fleet and family use.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,179 cc | |
| Fuel type | Diesel (EN 590 compliant, ULSD) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged (variable geometry) | |
| Bore × stroke | 85.0 mm × 96.0 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 | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water-cooled, electric thermostat | |
| Turbocharger | Honeywell VGT with electronic actuator | |
| Timing system | Timing belt (DOHC) | |
| Oil type | Total Rubia TIR 5W-30 | |
| Dry weight | 182 kg |
The VGT turbo provides strong low-RPM torque ideal for towing and motorway driving but requires adherence to 15,000 km oil change intervals using PSA-approved 5W-30 to prevent fuel pump and turbo degradation. Total Rubia TIR 5W-30 oil is critical due to its specific formulation protecting the high-pressure fuel system. The Bosch CRS 2-20 fuel system demands ultra-low-sulfur diesel (ULSD) meeting EN 590 standards to prevent plunger wear. Post-2012 models feature revised fuel pump internals; pre-2012 units should have the upgrade per PSA SIB-ENG-2013-09. DPF regeneration requires regular longer journeys to prevent clogging. Use of low-quality diesel increases injector and EGR failure risk.
Oil Specs: Requires Total Rubia TIR 5W-30 specification (PSA SIB-ENG-2013-09). Meets ACEA C3 and PSA B71 2290.
Emissions: Euro 5 certification applies to all models (2008–2018) (VCA Type Approval #VCA/EMS/9826).
Power Ratings: Measured under ECE R85 standards. 120 kW output requires EN 590 diesel with proper AdBlue dosing (PSA TIS Doc. DW12BTED4-PERF-01).
PSA Technical Information System (TIS): Docs DW12BTED4-001, DW12BTED4-002, SIB-ENG-2013-09
VCA Type Approval Database (VCA/EMS/9826)
ISO 1585:1996 Road vehicles — Test code for net power
The Citroën 4HR (DW12BTED4) was used across Citroën's PF3/PF4 platforms with longitudinal mounting and shared with Peugeot and Ford derivatives. This engine received platform-specific adaptations-reinforced mounts in the C6 and revised intake manifolds in the Jumper-and from 2012 the facelifted C5 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 DW12BTED4-ID-01). The 8th VIN digit indicates engine type ('H' for DW12BTED4). Pre-2012 models have silver cam covers with black plastic intake manifolds; post-2012 units use gloss black cam covers. Critical differentiation from DW12TED4: DW12BTED4 features a Honeywell VGT turbo with electronic actuator and SCR/AdBlue system. Service parts require model-year verification—fuel pumps and DPF units differ pre- and post-2012 due to revised cooling layout (PSA SIB-ENG-2013-09).
The DW12BTED4's primary reliability risk is high-pressure fuel pump failure in early production units, with elevated incidence in urban driving cycles. PSA internal quality reports from 2014 indicated a significant number of pre-2012 units required pump replacement before 150,000 km, while UK DVSA MOT records show increased DPF and EGR failures linked to poor fuel quality in neglected engines. Frequent short trips and delayed maintenance amplify wear, making fuel 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 4HR-DW12BTED4.
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