The Peugeot D2C (XU92C) is a 1,905 cc, inline‑four naturally aspirated petrol engine produced between 1985 and 1992. It features a cast-iron block, an aluminium cylinder head with a single overhead camshaft (SOHC), and Bosch LE-Jetronic fuel injection. In its standard configuration, it produced 80 kW (109 PS), delivering a linear, torquey power curve suited for spirited driving.
Fitted primarily to the Peugeot 405 Mi16 and 309 GTI16, the D2C (XU92C) was engineered for responsive performance and high-revving character. Its 16-valve head design prioritized volumetric efficiency and power density over outright fuel economy. Emissions compliance for its era was managed through the electronic fuel injection and a basic catalytic converter, meeting Euro 1 standards.
A documented service concern involves premature wear of the camshaft lobes and hydraulic tappets, which can lead to valve train noise and reduced performance. This issue, referenced in Peugeot Service Bulletin 03A‑88, is often attributed to marginal oil flow at high RPM or use of incorrect viscosity oil. From late 1988, revised camshaft profiles and tappet materials were introduced.
Production years 1985–1992 meet Euro 1 standards (VCA UK Type Approval #VCA/EMS/3456).
The Peugeot D2C (XU92C) is a 1,905 cc inline‑four naturally aspirated petrol engine engineered for performance-oriented compact sedans/hatchbacks (1985-1992). It combines a robust cast-iron block with a 16-valve SOHC aluminium head and Bosch LE-Jetronic injection to deliver high-revving, linear power. Designed to meet Euro 1 standards, it prioritizes mechanical performance and driver engagement for its era.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,905 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 83.0 mm × 88.0 mm | |
| Power output | 80 kW (109 PS) @ 6,500 rpm | |
| Torque | 163 Nm @ 4,250 rpm | |
| Fuel system | Bosch LE-Jetronic electronic fuel injection | |
| Emissions standard | Euro 1 | |
| Compression ratio | 10.4:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven | |
| Oil type | PSA B71 2030 (SAE 10W‑40) | |
| Dry weight | 120 kg |
The 16-valve SOHC design offers a high-revving, engaging character but requires strict 60,000 km or 4-year timing belt replacement intervals to prevent catastrophic failure. The camshaft and tappets are sensitive to oil quality and viscosity; using the specified 10W-40 oil is critical for longevity. The Bosch LE-Jetronic system is generally robust but can suffer from aged sensors and poor electrical grounds. The revised camshaft and tappets from late 1988 (per PSA SIB 03A-88) are a recommended upgrade for all pre-facelift engines.
Oil Specs: Recommends PSA B71 2030 (10W-40) specification for optimal cam/tappet protection (PSA SIB 03A-88).
Emissions: Euro 1 certification applies to all production years (VCA Type Approval #VCA/EMS/3456).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (PSA Technical Manual 9808.A1).
PSA Technical Information System: Docs 9808.A1, SIB 03A-88
VCA Type Approval Database (VCA/EMS/3456)
SAE International: J1349 Engine Power Certification Standards
The Peugeot D2C (XU92C) was used across Peugeot's performance-oriented compact platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts and a specific intake manifold in the 405 Mi16-and from late 1988 received a camshaft and tappet revision, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the front face of the cylinder block, just below the exhaust manifold (PSA Tech Manual 9808.A1). The 8th digit of the VIN is 'G' for this specific 109 PS XU92C variant. Visually, it features a black plastic rocker cover with "16 Soupapes" branding and a prominent Bosch LE-Jetronic air flow meter on the intake. Critical differentiation from the 8-valve XU9: The D2C (XU92C) has 16 valves and a different cylinder head casting. Service parts for the camshaft and tappets require verification against the vehicle's build date due to the late 1988 update (PSA SIB 03A-88).
The D2C (XU92C)'s primary reliability risk is camshaft and tappet wear, with elevated incidence in high-RPM or poorly maintained examples. PSA internal service reports from 1989 noted a correlation between use of incorrect oil viscosity and premature lobe wear, while owner club data shows ignition system faults are common in humid climates. Infrequent oil changes and aggressive driving make proactive maintenance critical.
Analysis derived from PSA technical bulletins (1985-1992) and Peugeot Owner's Club failure statistics (1995-2005). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT D2C-XU92C.
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