The Citroën 9HY, known internally as DV6TED4, is a 1,560 cc, inline — four turbocharged diesel engine produced between 2011 and 2018. It features a DOHC 16 — valve configuration, high — pressure common — rail direct injection (up to 1,600 bar), and a variable geometry turbocharger (VGT). In standard tune, it delivers 88 kW (120 PS) at 3,600 rpm and 300 Nm of torque at 1,750 rpm, primarily used in compact and mid — size passenger vehicles.
Fitted to models such as the Citroën C4 Pic…
Production years 2011–2015 meet Euro 5 standards; 2016–2018 models comply with Euro 6b depending on market .
The Citroën 9HY (DV6TED4) is a 1,560 cc inline-four turbocharged diesel engine designed for compact and mid-size platforms (2011–2018). It combines common-rail direct injection with a variable geometry turbocharger to deliver strong low-RPM torque and efficient cruising. Designed to meet Euro 5 and later Euro 6b standards, it balances economy with drivability in family-oriented applications.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,560 cc | |
Fuel type | Diesel (ULSD, EN 590 compliant) | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged (variable geometry) | |
Bore × stroke | 75.0 mm × 88.3 mm | |
Power output | 88 kW (120 PS) @ 3,600 rpm | |
Torque | 300 Nm @ 1,750 rpm | |
Fuel system | Delphi HP4 common-rail (up to 1,600 bar) | |
Emissions standard | Euro 5 (2011–2015); Euro 6b (2016–2018) | |
Compression ratio | 16.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Honeywell variable geometry turbo (VNT) | |
Timing system | Timing belt (renew every 190,000 km or 10 years) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 148 kg |
The Citroën 9HY (DV6TED4) was used across Citroën's B- and C-segment platforms with transverse mounting and shared with Peugeot and Opel under PSA group harmonization. This engine received platform-specific calibrations-adaptive throttle mapping in the C4 Picasso and revised EGR routing in the C3-and from 2016, Euro 6b-compliant variants introduced cooled EGR and enhanced lambda control, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The DV6TED4 is generally reliable when maintained properly. Early models (2011–2013) had high-pressure fuel pump concerns, but post-2014 revisions improved durability. Regular timing belt changes (every 190,000 km or 10 years) and using PSA-approved 5W-30 oil significantly enhance longevity. Well-maintained engines can exceed 200,000 km reliably.
Key issues include high-pressure fuel pump failure (pre-2014), DPF clogging due to short trips, turbo actuator sticking, and timing belt failure if overdue. These are documented in PSA service bulletins. Preventive maintenance and proper driving habits greatly reduce risk.
This 1.6L diesel was used in Citroën C3 (2011–2017) and C4 Picasso (2012–2018). It was also shared with Peugeot 308 and Opel Zafira Tourer under PSA platform-sharing agreements. Models from 2016–2018 meet Euro 6b standards.
Aftermarket ECU tuning is common on the 9HY-DV6TED4 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.
Excellent for a diesel. In a C4 Picasso 1.6 HDi 120, combined consumption is ~4.8 L/100 km (~59 mpg UK). City driving may see 5.5–6.0 L/100 km, while highway runs can achieve ~4.2 L/100 km (~67 mpg UK). Real-world figures depend on driving style and vehicle load.
Yes. The DV6TED4 is an interference engine. If the timing belt fails or jumps, piston-to-valve contact will occur, causing severe internal damage. Strict adherence to 190,000 km or 10-year replacement intervals is essential. Any timing-related symptoms must be addressed immediately.
PSA specifies Total Rubia TIR 5W-30 (meets PSA B71 2290). This low-SAPS oil protects the DPF and turbocharger. Change every 15,000 km or annually. Using incorrect oil can lead to DPF blockage and fuel system wear.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
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.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.