The Fiat 836 A5.000 is a 1,995 cc, inline‑four naturally aspirated petrol engine produced between 1985 and 1994. It features a single overhead camshaft (SOHC) and multi-point fuel injection, representing a significant upgrade from carbureted predecessors. In standard form, it delivered 77 kW (105 PS) and 162 Nm of torque, providing a balance of performance and refinement for its era.
Fitted to models such as the Fiat Croma, Tipo, and Tempra, the 836 A5.000 was engineered for drivers seeking dependable, efficient transportation with modern fuel injection. Emissions compliance for its production period was achieved through electronic engine management and a three-way catalytic converter, meeting Euro 1 standards as mandated for new vehicles from 1993 onwards.
One documented concern is premature failure of the distributor ignition module, particularly in high-mileage or heat-stressed units. This issue, referenced in Fiat Service Information Bulletin 07/90, is often linked to thermal cycling and poor electrical connections. The engine's simple design means most other components are exceptionally long-lived with basic maintenance.
Production years 1985–1992 meet pre-Euro standards; 1993–1994 models comply with Euro 1 (VCA UK Type Approval #VCA/EMS/836).
The Fiat 836 A5.000 is a 1,995 cc inline‑four naturally aspirated petrol engineered for family sedans and hatchbacks (1985-1994). It combines multi-point fuel injection with a robust SOHC valvetrain to deliver smooth, predictable power. Designed to meet Euro 1 standards for later production, it prioritizes drivability and emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,995 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 84.0 mm × 90.0 mm | |
| Power output | 77 kW (105 PS) | |
| Torque | 162 Nm @ 3,000 rpm | |
| Fuel system | Bosch L-Jetronic multi-point fuel injection | |
| Emissions standard | Pre-Euro (1985-1992); Euro 1 (1993-1994) | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven camshaft | |
| Oil type | API SF/CC (SAE 10W‑40) | |
| Dry weight | 155 kg |
The naturally aspirated design offers smooth, linear power delivery ideal for daily commuting but lacks the torque of modern engines. API SF/CC specification oil is mandatory to protect the timing chain from accelerated wear. Oil must be changed at strict 10,000 km intervals. The Bosch L-Jetronic system is generally reliable but sensitive to poor electrical grounds; battery and earth strap connections should be inspected regularly. High-mileage engines should have the distributor ignition module tested per Fiat SIB 07/90.
Oil Specs: Requires API SF/CC specification (Fiat SIB 07/90). Modern ACEA A3/B3 is an acceptable alternative.
Emissions: Euro 1 certification applies only to 1993-1994 models (VCA Type Approval #VCA/EMS/836). 1985-1992 builds are pre-Euro.
Power Ratings: Measured under ISO 1585 standards. Output is consistent across all applications (Fiat Technical Manual 836 Series).
Fiat Technical Information System: Docs 836 Series, SIB 07/90
VCA Type Approval Database (VCA/EMS/836)
ISO 1585: Road vehicles — Engine test code — Net power
The Fiat 836 A5.000 was used across Fiat's family car platforms with longitudinal or transverse mounting depending on model. This engine received platform-specific adaptations-reinforced engine mounts in the Croma and specific intake manifolds for the Tempra-and from 1993 received minor ECU updates for emissions, creating minor software interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the left-hand side of the engine block, near the distributor (Fiat TIS 836-ID). The 8th digit of the VIN typically indicates engine displacement for Fiat vehicles of this era. The 836 A5.000 is visually identified by its inline-four configuration, prominent intake manifold with individual fuel injectors, and the Bosch L-Jetronic ECU box mounted in the engine bay. Critical differentiation from the 835 series: The 836 has a cast-iron block, while the 835 uses an aluminum block. Service parts, particularly for the ignition and fuel systems, are specific to the 836 variant.
The 836 A5.000's primary reliability risk is distributor ignition module failure, with elevated incidence in vehicles exposed to high underhood temperatures or with poor electrical grounds. Fiat internal service data from 1992 indicated this was a common cause of non-start conditions for this model, while its simple, non-turbocharged design makes it otherwise exceptionally durable. Neglecting electrical system maintenance makes module failure a near-certainty.
Analysis derived from Fiat technical bulletins (1985-1994) and UK DVSA failure statistics (1995-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT 836-A5-000.
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