The Citroën 9HT (engine code DV6BTED4) is a 1,560 cc, inline-four turbocharged diesel engine produced by PSA Group between 2011 and 2018. It features high-pressure common-rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC), delivering 88 kW (120 PS) at 3,750 rpm and 300 Nm of torque at 1,750–2,500 rpm. This configuration provides strong low-end pull ideal for urban and motorway driving.
Fitted to models such as the Citroën C4, C3 Picasso, and Peugeot 308, the DV6BTED4 was engineered for efficiency and refinement in compact and MPV segments. Emissions compliance was achieved through exhaust gas recirculation (EGR), diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, enabling Euro 5 and later Euro 6c compliance across its production run.
One documented reliability concern is high-pressure fuel pump (HPFP) wear, highlighted in PSA Service Bulletin SIB-FUE-2015-04. This issue arises from abrasive particulate contamination in diesel fuel and extended service intervals, leading to rail pressure instability. Later production units incorporated revised pump internals and enhanced fuel filtration to improve durability.
Production years 2011–2015 meet Euro 5 standards; 2016–2018 models comply with Euro 6c depending on market (VCA UK Type Approval #VCA/EMS/5684).
The Citroën 9HT (DV6BTED4) is a 1,560 cc inline-four turbo-diesel engine engineered for compact and family vehicles (2011–2018). It combines common-rail injection with a variable geometry turbocharger to deliver responsive low-RPM torque and improved fuel economy. Designed to meet Euro 5 and Euro 6c standards, it balances efficiency with regulated emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,560 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged (variable geometry turbo) | |
| Bore × stroke | 75.0 mm × 88.3 mm | |
| Power output | 88 kW (120 PS) @ 3,750 rpm | |
| Torque | 300 Nm @ 1,750–2,500 rpm | |
| Fuel system | Bosch CRS 2-20 common-rail (up to 1,800 bar) | |
| Emissions standard | Euro 5 (2011–2015); Euro 6c (2016–2018) | |
| Compression ratio | 15.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Honeywell variable geometry turbo (VGT) with electronic actuator | |
| Timing system | Timing belt (interference design) | |
| Oil type | PSA B71 2310 (SAE 5W-30) | |
| Dry weight | 137 kg |
The VGT turbo provides strong low-RPM torque ideal for stop-start driving but requires strict adherence to 15,000 km oil change intervals to prevent turbo bearing and fuel pump wear. PSA B71 2310 (5W-30) oil is critical due to its soot-handling and thermal stability properties. Extended short-trip cycles increase DPF regeneration frequency and EGR coking. The Bosch CRS 2-20 HPFP demands ultra-low-sulfur diesel (EN 590) to prevent injector and pump wear. Timing belt replacement every 5 years or 120,000 km is essential due to interference design. SCR system requires periodic AdBlue refills and NOx sensor calibration.
Oil Specs: Requires PSA B71 2310 specification (PSA SIB-ENG-2014-04). Compatible with ACEA C3 but not a substitute.
Emissions: Euro 5 certification applies to 2011–2015 models (VCA Type Approval #VCA/EMS/5684). Euro 6c compliance confirmed for 2016–2018 units in UK markets.
Power Ratings: Measured under ECE R85 standards. 88 kW output optimized for urban efficiency (PSA TIS Doc. P22005).
PSA Technical Information System (TIS): Docs P21877, P21903, SIB-FUE-2015-04
VCA Type Approval Database (VCA/EMS/5684)
ISO 1585:1996 Road vehicles — Test code for net power of internal combustion engines
The Citroën 9HT (DV6BTED4) was used across Citroën's PF2/PF3 platforms with transverse mounting and shared with Peugeot for compact applications. This engine received platform-specific calibrations—higher EGR flow in the C3 Picasso and SCR integration in the C4—and from 2016 the facelifted C4 adopted the Euro 6c-compliant DV6BTED4 variant with revised NOx sensors, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front-facing side of the cylinder block, near the transmission bellhousing (PSA TIS P21892). The 8th VIN digit indicates engine family ('K' for DV6 series). Pre-2014 models have silver valve covers with black turbo inlet; post-2014 units use black valve covers. Critical differentiation from DV6ATED4: DV6BTED4 has higher fuel pressure and revised ECU mapping for increased torque. Service parts require build date verification—timing belts before 06/2014 are incompatible with later SCR-equipped variants due to revised tensioner routing (PSA SIB-ENG-2014-04).
The DV6BTED4's primary reliability risk is high-pressure fuel pump wear, with elevated incidence in vehicles fueled at non-branded stations. Internal PSA field reports from 2016 indicated a notable number of pre-2015 units required HPFP replacement before 100,000 km, while UK DVSA data links a significant share of emissions-related MOT failures to EGR valve clogging in high-mileage examples. Short-trip cycles and poor fuel quality increase particulate and thermal stress, making maintenance interval adherence and fuel specification critical.
Analysis derived from PSA technical bulletins (2012–2017) and UK DVSA failure statistics (2016–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about CITROEN 9HT-DV6BTED4.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with CITROEN or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
CITROEN Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
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.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialCITROEN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
