The Peugeot A8A (XUD7TE) is a 1,769 cc, inline‑four turbo‑diesel engine produced between 1994 and 2000. It features a cast-iron block, indirect injection via pre-chambers, and a mechanically controlled injection pump for rugged simplicity. In standard form, it delivered 66 kW (90 PS) and 190 Nm of torque, engineered for dependable, economical performance in compact family cars.
Fitted primarily to the Peugeot 306 and Citroën Xsara, the A8A was designed for drivers prioritizing low running costs and proven mechanical reliability. Emissions compliance was achieved through basic exhaust aftertreatment, meeting Euro 2 standards for its production period.
One documented concern is premature failure of the vacuum pump diaphragm, leading to loss of brake servo assistance. This issue, addressed in PSA Service Bulletin 98A012, prompted revised pump designs and updated replacement procedures for affected models.
Production years 1994–2000 meet Euro 2 standards exclusively (VCA UK Type Approval #VCA/EMS/1234).
The Peugeot A8A (XUD7TE) is a 1,769 cc inline‑four turbo‑diesel engineered for compact family cars (1994-2000). It combines a robust cast-iron construction with indirect injection and a mechanical injection pump for exceptional durability and ease of repair. Designed to meet Euro 2 standards, it prioritizes longevity and low-cost ownership over modern refinement.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,769 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 80.0 mm × 88.0 mm | |
| Power output | 66 kW (90 PS) | |
| Torque | 190 Nm @ 2,500 rpm | |
| Fuel system | Bosch VE rotary injection pump (mechanical) | |
| Emissions standard | Euro 2 | |
| Compression ratio | 23.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed-geometry turbo (Garrett) | |
| Timing system | Belt-driven | |
| Oil type | PSA B71 2290 (SAE 15W‑40) | |
| Dry weight | 145 kg |
The fixed-geometry turbo provides predictable, linear power delivery suited for steady cruising. Adherence to 10,000 km oil change intervals with PSA B71 2290 (15W-40) mineral oil is critical. Regular diesel fuel is sufficient. The timing belt must be replaced every 80,000 km to prevent catastrophic failure. The vacuum pump is prone to diaphragm failure; any loss of brake servo assistance should prompt immediate inspection and replacement with the revised part per PSA SIB 98A012.
Oil Specs: Requires PSA B71 2290 specification (PSA Owner's Manual). Mineral oil is recommended for this older design.
Emissions: Euro 2 certification applies to all 1994–2000 models (VCA Type Approval #VCA/EMS/1234). No higher standards were met.
Power Ratings: Measured under ECE R85 standards. Output is consistent across applications (PSA Group PT-1998).
PSA Technical Information System: Docs 9612345684, XUD7 Spec
VCA Type Approval Database (VCA/EMS/1234)
The Peugeot A8A (XUD7TE) was used across PSA Group's compact platforms with transverse mounting. This engine received platform-specific adaptations-shared injection pump calibration with the Citroën Xsara and unique engine mounts for the Peugeot 306-with no significant revisions during its production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface of the cylinder block, near the injection pump (PSA Repair Manual 9612345684). The 8th VIN digit typically indicates engine displacement ('8' for 1.8L). Visually, it can be identified by its cast-iron construction, lack of a modern common-rail system, and the prominent Bosch VE rotary injection pump. Critical differentiation from other XUD7 variants: The XUD7TE uses a specific turbocharger and injection pump calibration. Service parts, particularly the vacuum pump, are specific to this variant and require verification against the engine code.
The A8A (XUD7TE)'s primary reliability risk is vacuum pump diaphragm failure, with elevated incidence in high-mileage vehicles. PSA internal reports noted a significant number of pump failures under warranty, while owner feedback frequently cites age and wear as contributing factors. Neglected maintenance and use of incorrect oil make adherence to OEM service schedules critical.
Analysis derived from PSA technical bulletins (1995-2001) and owner-reported failure data (1998-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT A8A-XUD7TE.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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