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 engineered to provide a balance of spirited performance and everyday practicality for compact crossovers and sedans. Emissions compliance was achieved through direct fuel injection and catalytic conversion, allowing it to meet stringent Euro 6 standards upon its introduction.
One documented concern is potential failure of the turbocharger's wastegate actuator, which can lead to boost control issues. This issue, referenced in Fiat Technical Service Bulletin TSB‑15‑08‑02, is often linked to heat cycling and carbon buildup. Fiat later revised the actuator design in subsequent production runs.
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 turbocharged MultiAir system provides strong low-RPM torque ideal for overtaking and highway driving but requires strict adherence to 20,000 km or annual oil change intervals to maintain hydraulic unit and turbo integrity. Fiat 9.55535-DS1 (5W-40) oil is critical due to its specific additive package protecting the turbocharger and MultiAir actuators. Extended oil service can lead to carbon buildup, affecting valve control and turbo performance. The wastegate actuator is a known failure point on early units; inspection per Fiat TSB 15-08-02 is recommended for pre-2017 models.
Oil Specs: Requires Fiat 9.55535-DS1 (SAE 5W-40) specification (Fiat TSB 15-08-02). Compatible with ACEA C2/C3.
Emissions: Euro 6 certification applies to all production years (2015-2019) for EU markets (EU Type Approval e13*2014/45*0267).
Power Ratings: Measured under ECE R85 standards. Output varies by model application and ECU calibration (Fiat Technical Specification Sheet).
Fiat Technical Information System: Docs 9.940.00, TSB 15-08-02
European Commission Type Approval Database (e13*2014/45*0267)
Fiat EPC (Electronic Parts Catalogue)
ECE Regulation No. 85 (Engine Power Measurement)
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.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Fiat Workshop Manual 9.940.00). The 8th VIN digit typically corresponds to the engine code for Fiat vehicles. Visually, the engine is identifiable by its compact size, the MultiAir module on the intake cam cover, and the turbocharger assembly on the exhaust manifold. Critical differentiation from the 939A4000: The 940 B7.000 is turbocharged, while the 939A4000 is naturally aspirated. Service parts for the turbo system are specific to the 940 B7.000 and require VIN verification for ordering (Fiat EPC).
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.
Find answers to most commonly asked questions about FIAT 940-B7-000.
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