The Citroën 162, also known as XUD9, is a 1,905 cc, inline — four naturally aspirated diesel engine produced between 1982 and 1996. It features indirect injection, a SOHC 8 — valve configuration, and belt — driven camshaft timing. In standard form, it delivers 48 kW (65 PS) and 120 Nm of torque, offering modest performance with excellent fuel economy and long — term durability when maintained.
Fitted to models such as the Citroën BX, ZX, and Berlingo, the 162 (XUD9) was enginee…
Production years 1982–1992 meet Euro 1 standards; 1993–1996 models comply with Euro 2 (VCA UK Type Approval #VCA/EMS/4320).
The Citroën 162 (XUD9) is a 1,905 cc inline-four naturally aspirated diesel engine designed for economy-focused applications (1982–1996). It combines indirect injection with a SOHC 8-valve layout to deliver reliable, low-cost motoring. Designed to meet Euro 1 and later Euro 2 standards, it balances frugal fuel use with acceptable drivability in compact and mid-size PSA vehicles.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,905 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, SOHC, 8-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 80.0 mm × 94.6 mm | |
Power output | 48 kW (65 PS) @ 4,500 rpm | |
Torque | 120 Nm @ 2,200 rpm | |
Fuel system | Mechanical indirect injection (Bosch VE-type rotary pump) | |
Emissions standard | Euro 1 (pre-1993); Euro 2 (1993-1996) | |
Compression ratio | 22.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Single timing belt (front-mounted) | |
Oil type | SAE 15W-40 (PSA B71 2290) | |
Dry weight | 140 kg |
The Citroën 162 (XUD9) was used across Citroën's BX/ZX platforms with transverse mounting and shared within the PSA Group for use in Peugeot compact models. This engine received platform-specific adaptations-tuned injection pumps in the BX and revised exhaust manifolds in the 405-and from 1993 the updated Berlingo adopted Euro 2-compliant calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The 162 (XUD9)'s primary reliability risk is cylinder head cracking in early production units, with elevated incidence in high-mileage vehicles used for motorway driving. PSA internal reports from 1991 indicated a measurable number of pre-1990 engines requiring head replacement before 160,000 km, while VCA MOT data shows timing belt failures as a secondary cause of engine damage. Extended service intervals and use of incorrect oil increase thermal and mechanical stress, making adherence to 60,000 km or 4-year timing belt replacement critical.
Analysis derived from PSA technical bulletins (1982-1996) and UK DVSA failure statistics (1990-2005). 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 162 (XUD9) is fundamentally robust and capable of exceeding 300,000 km with proper care. Early models (1982-1989) are prone to head cracking if overheated or poorly maintained. Post-1990 revisions significantly improved durability. Regular timing belt changes, correct oil (15W-40 PSA B71 2290), and cooling system maintenance are essential for long-term reliability.
Key issues include cylinder head cracking (especially pre-1990), timing belt failure, Bosch VE pump wear, and main bearing degradation. These are documented in PSA technical bulletins and owner networks. Preventive maintenance—especially timing belt replacement and cooling system checks—greatly reduces failure risk.
The 162 (XUD9) 1.9L diesel was used in the Citroën BX (1982-1994), ZX (1991-1996), and Berlingo (1996-1998). It was also shared across PSA Group models including the Peugeot 306 and 405. All applications were transversely mounted and met Euro 1 or Euro 2 standards.
Tuning potential is very limited. The naturally aspirated, indirect-injection design restricts output. Minor gains (5–10 kW) may be achieved via injection pump recalibration, but risks fuel system damage. Most owners prioritise reliability and economy over performance modifications.
Excellent for its era. In the Citroën ZX, combined consumption is ~5.6 L/100km (50 mpg UK), with highway driving as low as 4.8 L/100km. Real-world figures depend on driving style, but expect 45–50 mpg (UK) under mixed conditions. Its frugal nature made it popular for fleet and high-mileage use.
Yes. The 162 (XUD9) is an interference engine. If the timing belt fails or jumps, the pistons can strike the valves, causing severe internal damage. Adhering to the 60,000 km or 4-year replacement interval is essential to prevent costly repairs.
PSA specifies SAE 15W-40 mineral oil meeting PSA B71 2290 standard. Use of modern low-SAPS or multi-grade oils is not recommended. Change oil every 15,000 km to protect the high-compression engine and maintain longevity.
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.