The Fiat 940 B7.000 is a 1,368 cc, inline‑four turbocharged petrol engine produced between 2015 and 2019. It features a dual overhead camshaft (DOHC) design with 16 valves and Fiat's MultiAir electro‑hydraulic variable valve timing technology. This system allows for precise, cylinder — by — cylinder control of intake valve lift and timing, enhancing both fuel efficiency and low — end torque.
Fitted primarily to the Fiat 500X (359) and Tipo (356) models, the 940 B7.000 was…
Production years 2015–2019 meet Euro 6 standards for relevant markets (EU Type Approval e13*2014/45*0267).
The Fiat 940 B7.000 is a 1,368 cc inline‑four turbocharged petrol engine engineered for compact crossovers and sedans (2015-2019). It combines MultiAir valve control with a chain-driven DOHC valvetrain and direct fuel injection to deliver responsive performance and good fuel economy. Designed to meet Euro 6 standards, it balances power with low emissions.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,368 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 72.0 mm × 84.0 mm | |
Power output | 103–125 kW (140–170 PS) | |
Torque | 230–250 Nm @ 1,500–3,500 rpm | |
Fuel system | Direct injection (MultiPoint) | |
Emissions standard | Euro 6 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single turbo with wastegate actuator | |
Timing system | Chain‑driven | |
Oil type | Fiat 9.55535‑DS1 (SAE 5W‑40) | |
Dry weight | 110 kg |
The Fiat 940 B7.000 was used across Fiat's compact crossover and sedan platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU calibrations for the 500X and revised engine mounts for the Tipo-creating no significant interchange limits. All adaptations are documented in OEM technical bulletins.
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The 940 B7.000's primary reliability risk is turbocharger wastegate actuator failure, with elevated incidence in vehicles subjected to frequent short trips or aggressive driving. Fiat internal reports noted a correlation between heat cycling and actuator binding, while owner data suggests MultiAir solenoid issues are also common. Neglecting oil service makes turbo and MultiAir system failures more likely.
Analysis derived from Fiat technical bulletins (2015-2019) and aggregated European owner association failure statistics (2016-2022). 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 940 B7.000 is generally reliable if meticulously maintained, particularly regarding oil changes. Its main vulnerabilities are the turbocharger wastegate actuator and the MultiAir system. With strict adherence to service schedules using the correct oil, these engines can easily surpass 150,000 km without major issues.
The most frequent issues are failures of the turbocharger wastegate actuator, the MultiAir solenoid/module, and the high-pressure fuel pump. Oil leaks from the cam cover gasket are also common as the engine ages. These are well-documented in Fiat service bulletins and owner forums.
This 1.4L turbocharged petrol engine was primarily used in the Fiat 500X (359 series, 2015-2019) and the Fiat Tipo (356 series, 2016-2019). It powered various trim levels, including the 1.4 T-Jet 140 and 1.4 T-Jet 170 variants.
Yes, significant power gains are possible via ECU remapping, typically unlocking an extra 20-30 kW. The turbocharged nature and robust internals make it quite tunable. However, aggressive tuning increases stress on the turbo and drivetrain, requiring supporting modifications for long-term reliability.
Fuel economy is reasonable for a turbocharged engine. In a Fiat 500X, expect combined figures around 6.5-7.0 L/100km (approx. 40-43 mpg UK). The Tipo sedan might return slightly better figures at 6.0-6.5 L/100km (approx. 43-47 mpg UK). Real-world consumption depends heavily on driving style.
Yes. The 940 B7.000 is an interference engine. If the timing chain were to fail or jump significantly, the pistons would collide with the open valves, causing severe internal engine damage. Fortunately, the chain is robust and rarely fails if basic maintenance is performed.
Fiat mandates the use of fully synthetic oil meeting specification 9.55535-DS1, typically a 5W-40 viscosity. Using the correct oil is paramount for the longevity of the turbocharger and MultiAir system. Oil should be changed every 20,000 km or annually, whichever comes first.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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