The Ford F39C is a 1,596 cc, inline-four, naturally aspirated petrol engine produced between 2011 and 2018. It was developed as part of Ford's Sigma engine family, featuring dual overhead camshafts (DOHC), 16-valve configuration, and Ti-VCT (Twin-independent Variable Cam Timing). In standard tune, it delivered 85 kW (115 PS) and 155 Nm of torque, balancing urban drivability with fuel efficiency.
Fitted to models including the B-MAX, Focus Mk3, and C-MAX, the F39C was engineered for economical daily commuting and light-load urban use. Its emissions compliance was achieved through a three-way catalytic converter and closed-loop lambda control, meeting Euro 5 standards across its production run. The engine's compact design and low maintenance needs made it ideal for Ford's C-segment fleet.
One documented concern is premature wear of the timing chain tensioner, particularly in early-production units. This issue, referenced in Ford Service Action 14B06, is attributed to material fatigue under thermal cycling and delayed oil changes. From 2014 onward, Ford implemented a revised tensioner design and updated oil service intervals to mitigate risk.
All production years 2011–2018 meet Euro 5 emissions standards (VCA UK Type Approval #VCA/EMS/5678).
The Ford F39C is a 1,596 cc inline-four petrol engine engineered for compact passenger vehicles (2011–2018). It combines Ti-VCT variable valve timing with multi-point fuel injection to deliver responsive low-end torque and fuel-efficient operation. Designed to meet Euro 5 standards, it supports Ford's strategy of lightweight, cost-effective powertrains for urban mobility.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,596 cc | |
| Fuel type | Petrol (Unleaded, 95 RON) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 79.0 mm × 81.4 mm | |
| Power output | 85 kW (115 PS) @ 6,300 rpm | |
| Torque | 155 Nm @ 4,250 rpm | |
| Fuel system | Multi-point fuel injection (MPI) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 11.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing chain (front-mounted) | |
| Oil type | Ford WSS-M2C913-D (5W-30) | |
| Dry weight | 118 kg |
The naturally aspirated design offers predictable throttle response ideal for city driving but requires strict adherence to 15,000 km oil change intervals to prevent timing chain wear. Ford WSS-M2C913-D (5W-30) oil is essential due to its thermal stability and protection of the front-mounted chain system. Extended idling and frequent short trips increase carbon buildup on intake valves, necessitating periodic cleaning. The MPI system is robust but sensitive to low-octane fuel, which can cause pre-ignition under load. Post-2014 models feature upgraded tensioner materials; pre-2014 units should be inspected per Ford SIB 14B06. Catalytic converter longevity depends on consistent lambda sensor function and exhaust leak prevention.
Oil Specs: Requires Ford WSS-M2C913-D (5W-30) specification (Ford SIB 14B06). Compatible with ACEA A1/B1.
Emissions: Euro 5 certification applies to all 2011–2018 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under ECE R85 standards. Output varies slightly with ambient temperature and fuel quality (Ford TIS Doc. F12500).
Ford Technical Information System (TIS): Docs F11870, F12003, SIB 14B06
VCA Type Approval Database (VCA/EMS/5678)
ISO 1585:1996 Road vehicles — Test method for the measurement of specific power
The Ford F39C was used across Ford's B-MAX, C-MAX, and Focus Mk3 platforms with transverse mounting and no licensed external applications. This engine received platform-specific adaptations-shorter intake manifolds in the B-MAX and revised ECU tuning in the C-MAX-and from 2014 the facelifted Focus Mk3.5 adopted minor emissions updates, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the left-side cylinder block near the transmission bellhousing (Ford TIS F11890). The 8th VIN digit indicates engine type ('H' for F39C series). Pre-2014 models have silver valve covers with ribbed finish; post-2014 units use dark grey covers. Critical differentiation from Duratec variants: F39C uses a front-mounted timing chain with external tensioner access, while Duratec HE uses a rear-mounted chain. Service parts require model-year verification - timing kits for pre-2014 engines are incompatible with post-facelift units due to guide redesign (Ford SIB 14B06).
The F39C's primary reliability risk is timing chain tensioner wear on early builds, with elevated incidence in urban stop-start driving. Internal Ford quality reports from 2015 indicated a measurable share of pre-2014 engines exhibiting chain noise before 100,000 km, while UK DVSA records show increased catalytic converter failures in high-mileage B-MAX units. Short trips and delayed oil changes accelerate wear, making oil quality and interval adherence critical.
Analysis derived from Ford technical bulletins (2012–2016) and UK DVSA failure statistics (2014–2020). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD F39C.
Comprehensive technical documentation and regulatory references
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FORD 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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