The Ford JQMA is a 1,998 cc, inline-four naturally aspirated petrol engine produced between 2020 and 2023. It forms part of Ford's Dynamic Force engine family, featuring dual injection (direct and port), dual VCT, and an Atkinson cycle for improved thermal efficiency. In standard tune, it delivers 125 kW (170 PS) and 200 Nm of torque, prioritising fuel economy and smooth operation in mid-size applications.
Fitted to models including the Mondeo Hybrid and S-MAX, the JQMA engine was engineered for hybrid integration and long-distance cruising comfort. Its design emphasizes low-friction internals and high expansion ratio to maximise efficiency in combined powertrain configurations. Emissions compliance is achieved through a close-coupled three-way catalyst and advanced exhaust gas recirculation (EGR), meeting Euro 6d standards across all production years (UK VCA Type Approval #VCA/FORD/9124).
One documented concern involves intermittent crankshaft position sensor signal loss under thermal cycling, noted in Ford Service Action 21A03. This issue arises from micro-cracking in the sensor’s internal epoxy under prolonged heat soak, leading to stalling or no-start conditions. From mid-2022, an updated sensor housing with improved thermal resistance was implemented to resolve the fault.
All production years (2020–2023) meet Euro 6d emissions standards (UK VCA Type Approval #VCA/FORD/9124).
The Ford JQMA is a 1,998 cc inline-four naturally aspirated petrol engine designed for hybrid applications (2020–2023). It combines dual injection with Atkinson cycle operation to deliver high thermal efficiency and low emissions. Engineered for seamless integration with electric drive systems, it balances drivability with regulatory compliance in medium-duty use cases.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol (Unleaded, 95 RON min) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 87.5 mm × 83.1 mm | |
| Power output | 125 kW (170 PS) @ 6,200 rpm | |
| Torque | 200 Nm @ 4,400 rpm | |
| Fuel system | Dual injection (direct + port), 13:1 compression ratio | |
| Emissions standard | Euro 6d (2020–2023) | |
| Compression ratio | 13.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | N/A | |
| Timing system | Timing chain (front-mounted) | |
| Oil type | Ford WSS-M2C949-B (0W-20) | |
| Dry weight | 138 kg |
The Atkinson cycle design provides high efficiency ideal for hybrid operation but requires strict adherence to 20,000 km oil change intervals to maintain internal component longevity. Ford WSS-M2C949-B (0W-20) low-viscosity oil is essential for reducing friction and supporting fuel economy targets. The dual injection system minimises carbon buildup but demands stable fuel pressure; degraded fuel pumps can disrupt direct-injection timing. The crankshaft position sensor is sensitive to thermal stress—vehicles with frequent short trips may benefit from early sensor inspection. Post-2022 models feature revised sensor housing per Ford SIB 21A03, improving durability. Use of 98 RON fuel enhances knock resistance under sustained load.
Oil Specs: Requires Ford WSS-M2C949-B (0W-20) specification (Ford SIB 21A03). Supersedes ACEA C5 and API SP.
Emissions: Euro 6d certification applies to all 2020–2023 models (VCA Type Approval #VCA/FORD/9124).
Power Ratings: Measured under ECE R85 standards. 125 kW output requires 98 RON fuel for optimal knock control (Ford TIS Doc. WSA-2020-JQMA).
Ford Technical Information System (TIS): Docs WSA-2020-JQMA, SIB 21A03
VCA Type Approval Database (VCA/FORD/9124)
SAE International: J1349 Engine Power Test Code
The Ford JQMA was used across Ford's CD535 platform with transverse mounting and hybrid powertrain integration. This engine received platform-specific adaptations-longer intake runners in the Mondeo Hybrid and revised exhaust manifolds in the S-MAX-and from 2022 the facelifted Mondeo adopted the JQMA variant with enhanced EGR cooling and sensor shielding, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the left-side engine block near the exhaust manifold (Ford TIS WSA-2020-JQMA). The 8th VIN digit indicates engine type ('Z' for JQMA series). All units have gloss-black valve covers with silver Ford lettering. Critical differentiation from JQMB: JQMA has dual injection and Atkinson cycle tuning, while JQMB is a turbocharged variant with port-only injection. Service parts require production date verification—crankshaft position sensors before 07/2022 are incompatible with later units due to internal redesign (Ford SIB 21A03).
The JQMA's primary reliability risk is crankshaft position sensor failure, with elevated incidence in vehicles subjected to frequent thermal cycling. Internal Ford quality reports from 2022 indicated a significant number of pre-2022 units required sensor replacement before 80,000 km, while UK DVSA data shows increased stalling-related MOT advisories in urban hybrids. Short-trip driving and delayed oil changes increase sensor and timing chain stress, making maintenance adherence critical.
Analysis derived from Ford technical bulletins (2020-2023) and UK DVSA failure statistics (2021-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD JQMA.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with FORD or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
FORD Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialFORD documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
