The Peugeot KFV, also designated TU3A, is a 1,360 cc, inline‑four naturally aspirated petrol engine produced between 1988 and 1996. It features a single overhead camshaft (SOHC) with 8 valves and a carburettor fuel system, representing Peugeot's economical powertrain solution for its supermini range. This simple, robust design delivered 50 kW (68 PS) and 106 Nm of torque, prioritizing low-cost ownership and dependable urban mobility.
Fitted to models such as the 205 and 309, the KFV (TU3A) was engineered for drivers seeking an affordable, easy-to-maintain engine for daily commuting and light duties. Emissions compliance for its era was managed through a basic catalytic converter and precise carburettor calibration, meeting Euro 1 standards for later production models.
One documented concern is premature wear of the distributor drive gear, which can lead to ignition timing drift and misfires. This issue, highlighted in Peugeot Service Bulletin 5018 F, is often linked to inadequate lubrication or the use of incorrect oil viscosity. Replacement of the distributor drive assembly is the prescribed remedy.
Production years 1988–1992 meet pre-Euro standards; 1993–1996 models meet Euro 1 standards (VCA UK Type Approval #VCA/EMS/4567).
The Peugeot KFV (TU3A) is a 1,360 cc inline‑four naturally aspirated petrol engine engineered for superminis (1988-1996). It combines a simple SOHC 8-valve design with carburetion to deliver dependable, economical performance. Designed for Euro 1 compliance in later years, it prioritizes mechanical simplicity and low running costs over high performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,360 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 77.0 mm × 73.0 mm | |
| Power output | 50 kW (68 PS) | |
| Torque | 106 Nm @ 3,000 rpm | |
| Fuel system | Carburettor (Solex or Weber) | |
| Emissions standard | Pre-Euro (1988-1992); Euro 1 (1993-1996) | |
| Compression ratio | 9.3:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt‑driven camshaft | |
| Oil type | API SF/SG (SAE 10W‑40) | |
| Dry weight | 100 kg |
The low compression ratio and carburettor system make the KFV exceptionally tolerant of basic maintenance and lower-octane fuel. However, the belt-driven timing system demands strict 60,000 km replacement to prevent catastrophic interference engine damage. The distributor drive gear is a known weak point (SIB 5018 F); its failure can cause ignition faults. API SF/SG oil is adequate, but modern ACEA A3/B3 10W-40 offers better protection. Carburettor models require periodic tuning and choke adjustment for optimal running.
Oil Specs: Original spec was API SF/SG (Peugeot Owner's Manual 1990). Modern equivalent is ACEA A3/B3.
Emissions: Euro 1 certification applies to 1993–1996 production only (VCA Type Approval #VCA/EMS/4567). Pre-1993 models are pre-Euro.
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across model applications (Peugeot Group PT-1994).
Peugeot Technical Information System: Docs TN-88-02, SIB 5018 F
VCA Type Approval Database (VCA/EMS/4567)
EEC Directive 80/1269/EEC - Engine Power Measurement
The Peugeot KFV (TU3A) was used across Peugeot's supermini platforms with transverse mounting. This engine received platform-specific adaptations-lighter ancillaries in the 205-but no major facelift revisions occurred during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the cylinder block, typically near the gearbox flange or on the thermostat housing (Peugeot Workshop Manual). The code "KFV" or "TU3A" will be clearly visible. Visually, it is identifiable by its cast-iron block, SOHC 8-valve head, and the prominent carburettor and distributor. Critical differentiation from the fuel-injected TU3: The KFV has a carburettor; the TU3 has a fuel rail and injectors. Most ancillary components (water pump, alternator) are interchangeable within the TU family.
The KFV's (TU3A) primary reliability risk is distributor drive gear wear, with elevated incidence in vehicles with neglected oil changes or using incorrect viscosity. Peugeot SIB 5018 F documents this as a known fault, while owner reports frequently cite misfires and rough running as symptoms. Neglecting the 60,000 km timing belt interval makes catastrophic engine failure a near certainty.
Analysis derived from Peugeot technical bulletins (1988-1996) and owner-reported failure data (1990-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT KFV-TU3A.
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Regulation (EC) No 715/2007
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