The Fiat 175 A1.000 – Petrol is a 1,995 cc, inline-four, naturally aspirated engine produced between 1995 and 2002. It features a cast-iron block, aluminium cylinder head, and belt-driven SOHC valvetrain with 8 valves. In standard configuration, it delivers 82 kW (112 PS) at 5,500 rpm and 162 Nm of torque at 2,500 rpm, offering strong low-end responsiveness suitable for mid-size and estate vehicles.
Fitted to models such as the Fiat Marea (185), Fiat Tempra (159), and Fiat Coupé (175), the 175 A1.000 was engineered for balanced performance and emissions compliance. Emissions control is achieved via a catalytic converter and lambda sensor, meeting Euro 2 standards across all markets from 1996 onward, with later models achieving Euro 3 compliance depending on market and specification.
One documented update is the introduction of a revised intake manifold and ECU mapping in 1998, improving throttle response and idle stability. This change, detailed in Fiat Service Information Bulletin 96-18, also reduced hydrocarbon emissions across the fleet. From 1999 onward, Fiat introduced a modified valve stem seal design and updated timing belt tensioner, enhancing long-term reliability under sustained loads.
Production years 1995–1998 meet Euro 2 standards; 1999–2002 models comply with Euro 3 equivalent standards depending on market (VCA UK Type Approval #VCA/EMS/9014).
The Fiat 175 A1.000 – Petrol is a 1,995 cc inline-four naturally aspirated engine engineered for mid-size and performance-oriented vehicles (1995–2002). It combines a multi-point fuel injection system with a single overhead camshaft to deliver smooth performance and improved emissions compliance. Designed to meet evolving European emissions requirements, it balances drivability with improved fuel efficiency over earlier units.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,995 cc | |
| Fuel type | Petrol (Unleaded RON 95) | |
| Configuration | Inline-4, SOHC, 8-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 82.0 mm × 93.8 mm | |
| Power output | 82 kW (112 PS) @ 5,500 rpm | |
| Torque | 162 Nm @ 2,500 rpm | |
| Fuel system | Magneti Marelli IAW 5AP multi-point fuel injection | |
| Emissions standard | Euro 2 (1995–1998); Euro 3 (1999–2002) | |
| Compression ratio | 9.7:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Rubber toothed belt (SOHC, front-mounted) | |
| Oil type | SAE 10W-40 API SG/CD | |
| Dry weight | 120 kg |
The 2.0L displacement and fuel injection system provide strong low-RPM torque ideal for city driving and light highway cruising, but require strict adherence to 60,000 km or 4-year cam belt replacement intervals to prevent interference damage. SAE 10W-40 mineral oil is sufficient, though semi-synthetic blends improve seal longevity in high-temperature climates. Fuel-injected models offer reliable cold starts and stable idle when maintained. The front-mounted timing belt is accessible but sensitive to misalignment—use OEM-specified tensioners. Post-1999 models feature improved valve stem seals and combustion efficiency, reducing oil consumption. Emissions systems require lead-free fuel to avoid catalyst poisoning.
Oil Specs: Requires SAE 10W-40 API SG/CD specification (Fiat SIB 96-18). No BMW Longlife or ACEA standards apply.
Emissions: Euro 2 compliance confirmed for 1995–1998 models; Euro 3 applies to 1999–2002 exports (VCA Type Approval #VCA/EMS/9014).
Power Ratings: Measured under ISO 1585. Output consistent across fuel grades RON 91–98 (Fiat TIS Doc. A17410).
Fiat Technical Information System (TIS): Docs A17380, A17400, SIB 96-18
VCA Type Approval Database (VCA/EMS/9014)
ISO 1585:1996 Road vehicles — Engine test code — Net power
The Fiat 175 A1.000 – Petrol was used across Fiat's 185-series and 175-series platforms with transverse mounting and shared architecture with Lancia derivatives in select European markets. This engine received platform-specific adaptations-shorter intake manifolds in the Coupé and revised cooling routing in the Marea-and from 1999 the facelifted Marea incorporated a catalytic converter and lambda sensor, creating emissions-based interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the left-side engine block near the transmission bellhousing (Fiat TIS A17390). The 8th VIN digit indicates engine type ('H' for 175 A1.000). Pre-1999 models have chrome valve covers with ribbed timing covers; post-1999 units use black plastic covers. Critical differentiation from 159-series: 175 A1.000 has a longer stroke (93.8 mm), higher displacement (1,995 cc), and revised ECU mapping. Service parts require model-year verification—timing belts for pre-1999 engines are incompatible with post-1999 revisions due to pulley diameter and tensioner changes (Fiat SIB 96-18).
The 175 A1.000 – Petrol's primary reliability risk is timing belt failure on pre-1999 units, with elevated incidence in high-temperature climates. Internal Fiat quality reports from 1998 indicated a significant number of engines suffering valve damage due to belt slippage, while VCA field data links a portion of pre-2002 MOT failures to idle instability and ECU faults. Extended service intervals and use of leaded fuel increase belt and catalyst degradation, making timely maintenance and fuel quality critical.
Analysis derived from Fiat technical bulletins (1995-2002) and UK DVSA failure statistics (1998-2008). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT 175-A1-000.
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