The Citroen 4HW (DW12TED4) is a 2,179 cc, inline — four turbocharged diesel engine produced between 2011 and 2018 as part of PSA Peugeot Citroën's DW engine family. It features a dual overhead camshaft (DOHC), 16 — valve configuration, and high — pressure common — rail direct injection, delivering 120 kW (163 PS) at 3,500 rpm with 340 Nm of torque available from 1,750 rpm. This engine combines strong pulling power with smooth operation for larger family and commercial vehicl…
All production years 2011–2018 meet Euro 5 emissions standards with SCR/AdBlue system .
The Citroen 4HW (DW12TED4) is a 2,179 cc inline-four turbocharged diesel engine developed for larger sedans and light commercial vehicles (2011–2018). It uses common-rail injection and a DOHC 16-valve layout to deliver robust performance and efficiency. Engineered to meet Euro 5 standards with SCR technology, it balances refinement, economy, and emissions compliance in higher-load applications.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,179 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 85.0 mm × 96.0 mm | |
Power output | 120 kW (163 PS) @ 3,500 rpm | |
Torque | 340 Nm @ 1,750–2,500 rpm | |
Fuel system | Common-rail direct injection (up to 1,800 bar) | |
Emissions standard | Euro 5 with SCR/AdBlue | |
Compression ratio | 16.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Variable geometry turbo (VGT, Garrett GT1949V) | |
Timing system | Timing belt (DOHC) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 158 kg |
The Citroen 4HW (DW12TED4) was used across Citroen's C5/Jumpy platforms with longitudinal mounting and shared with Peugeot under PSA Group commonality agreements. This engine received platform-specific calibrations—slightly tuned throttle response in the C5 and revised torque delivery in the Jumpy—and from 2014 the updated C5 adopted a redesigned ECU map and updated DPF regeneration logic, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The DW12TED4 is generally reliable when maintained properly. Key risks include DPF regeneration failure in pre-2014 models and SCR system faults if AdBlue is neglected. Using correct oil (PSA B71 2310) and performing regular highway drives to maintain DPF regeneration helps prevent issues. Well-maintained engines can exceed 200,000 km without major repairs.
Primary issues include DPF regeneration failure (especially pre-2014), timing belt failure, AdBlue/SCR system faults, and turbo actuator sticking. These are documented in PSA service bulletins. Regular maintenance—especially timing belt changes and DPF regeneration—significantly reduces failure risk.
The DW12TED4 was used in the Citroen C5 (2011–2017), Jumpy (2011–2018), and shared with Peugeot 508 (2011–2018) and Expert (2011–2018). It was phased out in favor of the newer BlueHDi engines. Production spanned from 2011 to 2018, primarily in Euro 5-compliant family and commercial vehicles.
Aftermarket ECU tuning is common on the 4HW-DW12TED4 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In combined driving, expect 5.8–6.5 L/100km (43–49 mpg UK). The C5 2.2 HDi averages ~6.1 L/100km in mixed use. Real-world economy depends on driving style—aggressive use can exceed 8.0 L/100km. Highway cruising is more efficient, often achieving 5.2–5.6 L/100km.
Yes. The DW12TED4 is an interference engine. If the timing belt fails or jumps, the pistons can strike the open valves, causing severe internal damage. The timing belt must be replaced every 100,000 km or 5 years—ignoring this risks catastrophic engine failure.
PSA specifies SAE 5W-30 oil meeting PSA B71 2310 standard. This low-SAPS synthetic oil ensures proper turbocharger and EGR system lubrication while protecting the DPF and SCR components. Oil changes should be performed every 15,000 km or annually to maintain engine longevity.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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