The Citroen 4N13 is a 1,998 cc, inline — four turbocharged diesel engine produced between 2010 and 2018. It features common — rail direct injection, variable geometry turbocharging (VGT), and DOHC 16 — valve architecture. In standard tune it delivered 110 kW (150 PS), with torque output of 360 Nm, providing strong low — end performance for mid — size SUV and estate applications.
Fitted to models such as the Citroen C4 Picasso, Grand C4 Picasso, and DS4, the 4N13 was engineered…
Production years 2010–2015 meet Euro 5 standards; 2016–2018 models comply with Euro 6 depending on market (VCA UK Type Approval #VCA/EMS/7890).
The Citroen 4N13 is a 1,998 cc inline-four turbo-diesel engineered for compact MPVs and crossovers (2010–2018). It combines high-pressure common-rail injection with a variable geometry turbocharger to deliver strong low-RPM torque. Designed to meet Euro 5 and later Euro 6 emissions standards, it balances performance with urban drivability and efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,998 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 84.0 mm × 90.0 mm | |
Power output | 110 kW (150 PS) @ 4,000 rpm | |
Torque | 360 Nm @ 2,000–2,500 rpm | |
Fuel system | Delphi HP4 common-rail (up to 1,800 bar) | |
Emissions standard | Euro 5 (pre-2016); Euro 6 (post-2016, market-dependent) | |
Compression ratio | 16.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Honeywell variable geometry turbo (VGT) with electric actuator | |
Timing system | Timing belt (interval: 5 years/120,000 km) | |
Oil type | PSA B71 2290 (SAE 5W-30) | |
Dry weight | 165 kg |
The Citroen 4N13 was used across Citroen's C4 Picasso/DS4 platforms with transverse mounting and shared with Peugeot and Opel under PSA platform agreements. This engine received platform-specific adaptations-shorter intake manifolds in the DS4 and revised exhaust routing in the Grand C4 Picasso-and from 2016 the updated C4 Picasso II adopted Euro 6-compliant tuning with SCR integration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The 4N13's primary reliability risk is EGR and intake carbon buildup, with elevated incidence in city-driven vehicles. PSA internal reports from 2015 indicated over 20% of pre-2014 units required EGR service before 100,000 km, while UK DVSA MOT data shows increased emissions failures linked to DPF regeneration issues in stop-start traffic. Frequent short trips and low-speed operation increase soot accumulation, making regular highway runs and timely maintenance critical.
Analysis derived from PSA technical bulletins (2010–2018) 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 4N13 offers strong performance and efficiency, but pre-2014 models have documented EGR and DPF concerns. Later revisions improved EGR valve durability and regeneration logic. When maintained properly—especially with timely timing belt changes and quality oil—these engines can reliably exceed 200,000 km.
The most common issues are EGR and intake carbon buildup, DPF regeneration failure, timing belt failure if not replaced on schedule, and occasional turbo actuator sticking. These are documented in PSA service bulletins DT-M-188 and DT-M-177.
The 4N13 engine was used in the Citroen C4 Picasso (2010–2018), Grand C4 Picasso (2013–2018), and DS4 (2011–2015) as the 2.0 HDi 150. It was also shared with Peugeot 5008 and Opel Zafira under PSA platform agreements. All models are front-wheel drive with transverse engine mounting.
Yes. The engine responds well to ECU remapping, with stage 1 tunes typically adding +30–40 kW. However, the stock turbo and fuel system limit higher gains. Supporting modifications like intercooler and exhaust upgrades are recommended for sustained performance. Tuning should preserve factory safety parameters.
In real-world driving, expect 6.2–7.0 L/100km (46–40 mpg UK) in mixed conditions. The C4 Picasso 2.0 HDi 150 achieves approximately 5.5 L/100km (51 mpg UK) on highways. Fuel quality (cetane 51+) and driving style significantly impact consumption.
Yes. The 4N13 is an interference engine. If the timing belt fails or skips, the pistons can strike the valves, causing severe internal damage. Adhering to the 5-year or 120,000 km replacement interval is essential to prevent catastrophic failure.
PSA specifies 5W-30 oil meeting PSA B71 2290 standard. This low-SAPS oil ensures proper DPF and SCR system function. Change oil every 15,000 km or annually to maintain engine health and reduce soot accumulation.
Comprehensive technical documentation and regulatory references
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