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 — du…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The DW12BTED4 delivers strong torque and good efficiency, but pre-2012 models have known high-pressure fuel pump concerns. Later revisions (post-2012) improved pump durability. Well-maintained engines with regular oil changes using correct specification (5W-30) and high-quality diesel can exceed 250,000 km. Drivers should prioritize fuel quality and avoid short trips to prevent DPF issues.
Primary issues include high-pressure fuel pump failure (especially pre-2012), DPF clogging, timing belt failure if neglected, and EGR valve coking. These are documented in PSA service bulletins and linked to fuel quality, coolant standards, and driving patterns. Regular maintenance and use of EN 590 diesel are essential to mitigate risks.
The DW12BTED4 was used in the C5 (2.2 HDi 160), C6 (2.2 HDi 160), and Jumper (2.2 HDi 160) from 2008 to 2018. It was also shared with Peugeot (508, Boxer) and Ford (Transit) under the DLD-422 designation. All models are Euro 5 compliant.
Yes, the DW12BTED4 responds well to ECU remapping, with stage 1 tunes typically adding +40–50 kW. However, stock turbos and fuel systems are near their limits, so supporting mods (intercooler, exhaust) are recommended. Over-tuning without cooling upgrades risks turbo or CRS 2-20 pump failure.
Official combined figures range from 5.8–6.5 L/100 km (~49–43 mpg UK). Real-world consumption is typically 6.5–7.5 L/100 km (~43–37 mpg UK), depending on driving style. The C5 and C6 achieve best economy on motorways. Using EN 590 diesel ensures optimal efficiency and prevents fuel system damage.
Yes. The DW12BTED4 is an interference engine. If the timing belt fails or skips, pistons will contact open valves, resulting in catastrophic engine damage. Any timing-related rattles must be investigated immediately. Replacement of the belt kit at recommended intervals is critical.
PSA specifies Total Rubia TIR 5W-30 (or equivalent meeting PSA B71 2290). This low-SAPS oil is essential for turbocharger and DPF system protection. Oil must be changed every 15,000 km or annually to prevent sludge, coking, and premature wear.
Comprehensive technical documentation and regulatory references
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