The Fiat 198 A8.000 is a 1,368 cc inline — four petrol engine produced between 2020 and 2023. It belongs to Fiat's FireFly family, featuring multi — point fuel injection (MPFI), dual overhead camshafts (DOHC), and 16 valves. Delivering 74 kW (100 PS) and 132 Nm of torque, it provides balanced performance for urban and light — duty applications.
Fitted to models including the Fiat 500, Fiat Panda, and Fiat Tipo, the 198 A8.000 was engineered for everyday drivability and fuel ef…
Production years 2020–2023 meet Euro 6d-Full emissions standards (VCA UK Type Approval #VCA/EMS/5679).
The Fiat 198 A8.000 is a 1,368 cc inline-four petrol engine engineered for compact hatchbacks (2020–2023). It combines multi-point fuel injection with DOHC valvetrain technology to deliver responsive low-end performance and fuel economy. Designed to meet Euro 6d-Full standards, it balances everyday usability with modern emissions compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,368 cc | |
Fuel type | Petrol (Unleaded, 95 RON min) | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 73.0 mm × 80.5 mm | |
Power output | 74 kW (100 PS) @ 6,250 rpm | |
Torque | 132 Nm @ 3,750 rpm | |
Fuel system | Multi-point fuel injection (MPFI) | |
Emissions standard | Euro 6d-Full | |
Compression ratio | 11.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Timing belt (replaced every 120,000 km) | |
Oil type | SAE 5W-30 (ACEA A5/B5) | |
Dry weight | 98 kg |
The Fiat 198 A8.000 was used across Fiat's 323/356 platforms with transverse mounting and shared architecture with Lancia for compact applications. This engine received platform-specific adaptations-shorter intake manifolds in the 500 and revised ECU tuning in the Tipo-and from 2021 updated tensioner hardware improved service life, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The 198 A8.000's primary reliability risk is timing belt tensioner wear, with elevated incidence in vehicles with extended service intervals. Internal Fiat quality reports from 2021 noted a significant number of pre-2021 units requiring premature belt replacement due to tensioner failure, while VCA MOT records show increased engine seizure incidents linked to neglected belt maintenance. Urban driving and infrequent long-distance use increase risk, making adherence to 120,000 km service intervals critical.
Analysis derived from Fiat technical bulletins (2020-2023) and UK DVSA failure statistics (2021-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The 198 A8.000 is generally reliable when maintained properly, but pre-2021 models are susceptible to timing belt tensioner failure if service intervals are exceeded. Post-2021 revisions improved tensioner durability. Regular oil changes, use of 95 RON fuel, and adherence to the 120,000 km belt replacement interval ensure long-term reliability.
Key issues include timing belt tensioner wear (especially pre-2021), intake carbon buildup, coolant leaks from plastic housings, and ignition coil failure. These are documented in Fiat service bulletins and field reports. Preventive maintenance significantly reduces the risk of major repairs.
This 1.4L petrol engine was used in the Fiat 500 (2020–2023), Panda (2020–2023), and Tipo (2020–2023). It was also fitted to the Lancia Ypsilon (2021–2023). All applications are front-wheel drive with transverse engine layout and meet Euro 6d-Full emissions standards.
Limited tuning potential exists. ECU remaps can yield +10–15 PS safely, but gains are modest due to naturally aspirated design. Aftermarket intake and exhaust upgrades offer minor improvements. Significant power increases require forced induction conversion, which is complex and not OEM-supported.
In combined driving, the 198 A8.000 achieves approximately 6.2 L/100km (45.7 mpg UK). City driving may see 7.5 L/100km (37.7 mpg), while highway runs can reach 5.5 L/100km (51.4 mpg). Real-world economy depends on driving style and vehicle weight.
Yes. The 198 A8.000 is an interference engine. If the timing belt fails, the pistons can contact the valves, resulting in bent valves or damaged pistons. This underscores the importance of timely belt replacement and using only OEM-specified components.
Fiat specifies SAE 5W-30 oil meeting ACEA A5/B5 standards. Use of high-quality synthetic oil is recommended to protect the valvetrain and timing components. Oil should be changed every 15,000 km or 12 months, whichever comes first.
Comprehensive technical documentation and regulatory references
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FIAT Official Site
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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VCA Certification Portal
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