Covers Fiat petrol, diesel, and hybrid engines used across UK and European models - from classic FIRE engines to modern MultiAir and MultiJet technology. Each engine code includes specifications, compatible vehicles, and emissions data, sourced from official Fiat and EU records.
Data sourced from Fiat Technical Information System (TIS), EU Regulation (EC) No 715/2007, and Fiat Service Documentation.
Find Fiat engine codes by family, model, or generation
| Engine Code | Fuel Type | Series | Specifications |
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Engine specifications and technical data sourced from Fiat Technical Documentation and EU Vehicle Type Approval Database. Consult vehicle documentation or professional guidance before undertaking mechanical work. Report errors or omissions through our contact channels.
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The engine code is essential for ordering parts, diagnosing issues, and verifying compatibility. It is not the same as the VIN or chassis number. This guide shows exactly where to find it - by model and engine type - using official Fiat and DVLA sources
A unique identifier stamped on the engine block or cover used for parts and service.
The vehicle identification number that holds encoded vehicle and engine information.
The chassis or frame number used for registration and legal identification.
Locate the engine code on the front of the engine block, near the timing belt cover. It is stamped into the metal or on a label near the cylinder head.
The engine code is located on a label attached to the camshaft cover. Look for "312A2000" or similar TwinAir designation.
Open the hood and look at the left side of the engine (driver's side). The code is on a white label near the fuel injection system. Confirm "199A2000" for diesel models.
The engine code is cast into the engine block near the exhaust manifold, or on a label on the camshaft cover. Look for "350A1000" or "955A1000".
Engine code locations per Fiat TIS Service Information. V5C field definitions from DVLA Guide to Vehicle Registration. VIN structure compliant with EU Regulation (EC) No 715/2007, Article 7.
A technical breakdown of Fiat's core engine systems including MultiAir, MultiJet, FIRE architecture and TwinAir technology with documented reliability impacts. All data sourced from Fiat Technical Documentation, Service Bulletins and EU Regulation (EC) No 715/2007
Fiat's proprietary MultiAir system uses electro-hydraulic variable valve actuation to control intake valve timing and lift without a traditional camshaft, improving efficiency and performance.
An electro-hydraulic unit between the camshaft and valves uses engine oil pressure controlled by a solenoid valve to vary intake valve timing and lift continuously, eliminating the need for a throttle butterfly.
1.4 MultiAir (2009)
First generation electro-hydraulic system
0.9 TwinAir (2010)
Optimized for 2-cylinder application
1.4 Turbo MultiAir (2013)
Enhanced turbocharged variant
MultiAir unit failure
Hydraulic unit can fail at high mileage (100k+ miles)
Oil quality sensitivity
Requires specific oil specification; poor maintenance causes failure
Solenoid valve issues
Electrical faults can cause rough running or limp mode
Fiat's proprietary MultiAir system uses electro-hydraulic variable valve actuation to control intake valve timing and lift without a traditional camshaft, improving efficiency and performance.
An electro-hydraulic unit between the camshaft and valves uses engine oil pressure controlled by a solenoid valve to vary intake valve timing and lift continuously, eliminating the need for a throttle butterfly.
1.4 MultiAir (2009)
First generation electro-hydraulic system
0.9 TwinAir (2010)
Optimized for 2-cylinder application
1.4 Turbo MultiAir (2013)
Enhanced turbocharged variant
MultiAir unit failure
Hydraulic unit can fail at high mileage (100k+ miles)
Oil quality sensitivity
Requires specific oil specification; poor maintenance causes failure
Solenoid valve issues
Electrical faults can cause rough running or limp mode
All technical descriptions and failure data sourced from Fiat Product Technical Reports, Fiat TIS Service Information, and EU Regulation (EC) No 715/2007 on vehicle type-approval.
Authoritative data on Fiat's global engine production, plant operations, and strategic partnerships. All figures sourced from Stellantis Reports, Sustainability Reports, and EU industrial compliance records.
Fiat manufactures engines at multiple facilities worldwide, each specializing in specific families.
Fiat produced 1.35 million vehicles globally in 2023, confirming its position as the top Stellantis brand by volume [[118]]. Note the steady decline in Diesel production due to Euro 6d regulations, while Hybrid integration rises.
Note: Diesel production has declined steadily due to Euro 6d and WLTP regulations (Regulation (EC) No 715/2007). Hybrid and electric integration rising.
Strategic collaboration for diesel engines. 1.3 MultiJet diesel engines power Opel/Vauxhall and Suzuki models across Europe, utilizing Fiat's Termoli-built blocks.
Common rail injection & turbo design
1.3 MultiJet blocks built in Termoli, supplied to GM plants
Fiat-GM Powertrain Collaboration Agreement
Shift in production reflects EU emissions policy and changing consumer demand.
This aligns with Commission Regulation (EU) 2017/1151 (WLTP/RDE) and EU 2035 ICE phase-out roadmap.
Engine production years verified via Fiat Product Reports and EU type-approval records
The most common questions about engine codes, what they mean, how to find them and how this database works
Confirm the full engine designation using vehicle-specific manufacturer records and the engine marking. An engine serial number, a registration record and a marketed power badge are not automatically the same identifier. Match the VIN/build data and the installed engine before selecting parts or a replacement.
No. A factory-application reference and a replacement-interchange decision are different. Match the full engine designation, vehicle build data, emissions equipment, controls and relevant supplier/OEM information.
No. Records have different review states. Read the correction notice, source scope and application limits on the individual record. Missing technical fields must not be inferred from similar engine codes.
EngineCode.uk provides reference information about Fiat engines. It is operated by Engine Finders UK Ltd and also offers an optional replacement-engine enquiry service. Technical information can contain errors or omissions. Check the sources and verification notes for the relevant record, and confirm the details for your vehicle before buying parts or arranging work.
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