The Citroen 4HV (P22DTE) is a 2,179 cc, inline — four turbo — diesel engine produced between 2011 and 2018. It forms part of the PSA DW12 family, widely used across Peugeot, Citroën, and DS models, featuring common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC). In standard tune, it delivers 120 kW (163 PS) with peak torque of 370 Nm, providing strong mid — range performance for larger passenger and commercial vehicles.
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Production years 2011–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Citroen P22DTE is a 2,179 cc inline-four turbo-diesel engineered for executive and commercial applications (2011–2018). It combines common-rail direct injection with a variable-geometry turbocharger and SCR-based aftertreatment to deliver strong mid-range torque and low CO₂ emissions. Designed to meet Euro 5 standards, it balances performance with efficiency in larger vehicle platforms.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,179 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged with VGT | |
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 2.0 common-rail (up to 1,800 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 16.4:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Honeywell) | |
Timing system | Timing belt (service interval: 150,000 km or 10 years) | |
Oil type | PSA B71 2290 (5W-30) | |
Dry weight | 185 kg |
The Citroen P22DTE was used across Citroen's C5/C6/Jumpy platforms with longitudinal mounting and shared within the PSA Group for transverse applications in commercial variants. This engine received platform-specific adaptations-shorter intake manifolds in the Jumpy and revised EGR cooling in the C6-and from 2014 the updated fuel pump calibration improved reliability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The P22DTE's primary reliability risk is high-pressure fuel pump (HPFP) failure on early builds, with elevated incidence in urban driving with frequent short trips. PSA internal reports from 2013 indicated a significant share of pre-2014 units required HPFP replacement before 150,000 km, while UK DVSA records show SCR-related faults are common in vehicles with infrequent long-distance driving. Poor fuel quality and extended service intervals increase pump and EGR stress, making fuel filtration and oil changes critical.
Analysis derived from PSA technical bulletins (2011–2016) 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 P22DTE offers strong performance and refinement, but early models (2011–2013) had reliability concerns, particularly HPFP failures. Later revisions (post-2014) improved pump durability and fuel filtration. Well-maintained engines with regular oil changes and quality diesel can exceed 250,000 km. AdBlue and DPF systems require consistent longer runs to remain reliable.
The most documented issues are high-pressure fuel pump failure, EGR and intake carbon buildup, AdBlue/SCR system faults, and timing belt degradation. These are covered in PSA service bulletins. Fuel quality, oil changes, and adherence to service intervals are critical to preventing these failures in long-term ownership.
The P22DTE was used in the Citroën C5 (2011–2017), C6 (2011–2012), and Jumpy (2011–2018). It was also shared across PSA Group models including the Peugeot 508 and Expert. All variants are Euro 5 compliant and feature SCR with AdBlue injection for emissions control.
Yes, the P22DTE is tunable via ECU remap. Stage 1 modifications typically yield +25–40 kW, as the engine and turbocharger can handle increased boost and fueling. However, tuning may increase stress on the HPFP and EGR system. Supporting modifications like enhanced cooling and upgraded fuel filtration are recommended for sustained performance gains.
In a Citroën C5 2.2 HDi, combined fuel consumption is approximately 6.1 L/100 km (~46 mpg UK). Highway efficiency improves to ~5.3 L/100 km (~53 mpg UK). Real-world economy depends on driving style and load, but expect 45–50 mpg UK in mixed conditions for a well-maintained vehicle.
Yes, the P22DTE is an interference engine. If the timing belt fails or jumps, pistons can collide with open valves, resulting in severe internal damage. The belt must be replaced every 150,000 km or 10 years—whichever comes first. Any sign of belt wear or tensioner noise should be addressed immediately.
PSA specifies 5W-30 oil meeting PSA B71 2290 specification. This synthetic oil is formulated for diesel engines with particulate filters and high-pressure fuel systems. Oil changes should be performed every 15,000 km or annually to ensure turbo and fuel pump longevity and maintain emissions system efficiency.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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