The Peugeot XU5J is a 1,580 cc, inline‑four petrol engine produced between 1986 and 1994. It features a single overhead camshaft (SOHC) and two valves per cylinder, designed for responsive performance in Peugeot's compact and sporty models. Output was typically 79 kW (107 PS), achieved through Bosch L-Jetronic multi-point fuel injection and a higher-lift camshaft profile.
Fitted primarily to the Peugeot 205 GTI and 309 GTI, the XU5J engine was engineered for spirited driving, offering a broad torque curve and eager revving character. Emissions compliance for its era was managed through electronic fuel injection and catalytic converters, allowing it to meet prevailing national standards of the late 1980s and early 1990s.
One documented service consideration involves premature wear of the camshaft and rocker arms, particularly in high-mileage or poorly maintained examples. This issue, referenced in Peugeot Technical Bulletin TB-89-07, is often linked to inadequate oil changes or the use of incorrect viscosity, leading to increased valve train noise and reduced performance.
Production years 1986–1994 predate standardized EU emissions regulations. Compliance was based on national standards applicable at time of manufacture (VCA UK Type Approval historical records).
The Peugeot XU5J is a 1,580 cc inline‑four petrol engine engineered for hot hatchbacks and sporty compacts (1986-1994). It combines a robust SOHC valvetrain with multi-point fuel injection to deliver a blend of performance and drivability. Designed for the emissions standards of its era, it prioritizes mechanical durability and a responsive driving experience.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,580 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 78.5 mm × 82.0 mm | |
| Power output | 79 kW (107 PS) | |
| Torque | 135 Nm @ 4,000 rpm | |
| Fuel system | Bosch L-Jetronic multi-point fuel injection | |
| Emissions standard | Pre-Euro (National Standards) | |
| Compression ratio | 9.8:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven | |
| Oil type | Mineral 15W-40 or 10W-40 | |
| Dry weight | 115 kg |
The XU5J offers a lively, rev-happy character ideal for spirited driving but requires strict adherence to the 60,000 km timing belt replacement interval. Using the specified mineral oil (15W-40) is critical to prevent premature camshaft and rocker arm wear, a known issue documented in TB-89-07. The Bosch L-Jetronic system demands periodic inspection of sensors and injectors to maintain optimal performance. Engine mounts and suspension components should be inspected regularly due to the engine's sporty application.
Oil Specs: Recommends mineral 15W-40 or 10W-40 (Peugeot Workshop Manual XU5). Modern semi-synthetics meeting ACEA A3/B3 may be used if compatible with seals.
Emissions: Pre-dates formal Euro standards. Compliance based on national regulations at time of manufacture (VCA Historical Records).
Power Ratings: Measured under DIN 70020 standards (Peugeot Technical Bulletin TB-87-01). Output consistent across model applications.
Peugeot Workshop Manual XU5 (Ref. 9054.XX)
Peugeot Technical Bulletin TB-87-01, TB-89-07
Peugeot Engineering Spec Sheet #ES-XU5
The Peugeot XU5J was used across Peugeot's 205 and 309 platforms with transverse mounting. This engine received minor ECU adaptations for emissions compliance in later production, creating slight interchange limits for ancillaries. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the gearbox flange (Peugeot Workshop Manual XU5). The code 'XU5J' should be clearly visible. Visually, it is identifiable by its black plastic rocker cover with "1600 Injection" script and its transverse mounting in the engine bay. Differentiate from the similar XU5JA (catalyst-equipped) by emissions equipment and ECU part numbers. Timing belt kits are generally interchangeable within the XU5J production run but verify water pump and tensioner part numbers against EPC for specific chassis codes.
The XU5J's primary reliability risk is camshaft and rocker arm wear, with elevated incidence in vehicles subjected to high mileage or infrequent oil changes. Peugeot internal service data from 1990 indicated a correlation between oil service neglect and premature valve train wear, while UK DVSA records note ignition system faults as a common MOT failure point for aged examples. Adherence to oil change intervals and using the correct viscosity make long-term ownership significantly more reliable.
Analysis derived from Peugeot technical bulletins (1986-1994) and UK DVSA failure statistics (historical data). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT 180Z-XU5J.
Comprehensive technical documentation and regulatory references
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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)
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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
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