The Jaguar FMBA – Petrol is a 2,995 cc, supercharged V6 engine produced between 2010 and 2018. It forms part of Jaguar's AJ — V6 Gen III family, featuring a Roots — type supercharger, direct and port fuel injection (Twin — Pulse), and variable valve timing on both intake and exhaust camshafts. In standard tune, it produces 250 kW (340 PS) and 450 Nm of torque, delivering strong mid — range response and linear power delivery.
Fitted to models such as the XF (X250), XK (X150), and ear…
Jaguar
All production years (2010–2018) meet Euro 5 emissions standards (VCA UK Type Approval #VCA/EMS/6789).
The Jaguar FMBA – Petrol is a 2,995 cc supercharged V6 engine from the AJ-V6 Gen III series (2010–2018). It combines direct and port fuel injection with a Roots-type supercharger to deliver strong mid-range torque and responsive performance. Designed to meet Euro 5 standards, it balances sporty character with daily drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,995 cc | |
Fuel type | Petrol | |
Configuration | V6, DOHC, 24-valve | |
Aspiration | Supercharged (Eaton Roots-type) | |
Bore × stroke | 86.0 mm × 86.0 mm | |
Power output | 250 kW (340 PS) @ 6,500 rpm | |
Torque | 450 Nm @ 3,500–5,000 rpm | |
Fuel system | Twin-Pulse (direct + port injection) | |
Emissions standard | Euro 5 | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Supercharger | Eaton M62 Roots-type (intercooled) | |
Timing system | Double roller chain (front-mounted) | |
Oil type | Jaguar Specification WSS-M2C947-A | |
Dry weight | 192 kg |
The Jaguar FMBA – Petrol was used across Jaguar's X250/X150 platforms with longitudinal mounting and shared design principles with Land Rover for potential transverse adaptation studies. This engine received platform-specific adaptations-shortened intake manifolds in the XF and revised exhaust manifolds in the XK-and from 2014 the updated F-Type models adopted higher-output variants with revised supercharger calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The FMBA – Petrol's primary reliability risk is supercharger bypass valve failure on early builds, with elevated incidence in hot climates and stop-start use. Internal Jaguar quality reports from 2015 indicated a notable share of pre-2014 engines requiring SBV replacement before 120,000 km, while UK DVSA records link a significant portion of emissions-related MOT failures to lambda sensor degradation in high-mileage vehicles. Extended idling and delayed oil changes increase supercharger and chain stress, making oil quality and interval adherence critical.
Analysis derived from Jaguar technical bulletins (2010-2018) and UK DVSA failure statistics (2015-2023). 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 FMBA – Petrol delivers strong performance and smooth power delivery, but early models (2010-2013) had reliability concerns, especially supercharger bypass valve failure. Later revisions (post-2014) improved SBV durability, so well-maintained examples can be quite robust. Regular servicing and using high-quality oil (Jaguar WSS-M2C947-A) greatly aid longevity.
The biggest issues are supercharger bypass valve (SBV) failure (leading to overboost or limp mode), intake carbon buildup affecting idle quality, and lambda sensor degradation causing emissions failures. Other complaints include coolant leaks from thermostat housing and occasional PCV system faults. These are well-documented in Jaguar service bulletins.
This 3.0L supercharged V6 petrol engine was used primarily in the XF (X250, 2010-2015), XK (X150, 2010-2014), and early F-Type (X152, 2013-2016). It was not used in Land Rover production models, though design studies considered adaptation for performance variants.
Yes. ECU remaps can yield +20-30 kW safely by optimizing boost pressure and ignition timing. Aftermarket headers, exhaust systems, and upgraded intercoolers provide additional gains. However, the supercharger has limits, and over-tuning without supporting mods risks premature SBV or engine damage.
Moderate. In an XF 3.0 V6 S from around 2012, typical consumption is ~13.5 L/100km (city) and ~8.0 L/100km (highway), or about 25 mpg UK combined. Real-world figures will depend on driving style, but expect 22-26 mpg (UK) on mixed roads for a healthy FMBA – Petrol engine.
Yes. The FMBA – Petrol is an interference engine. This means if the timing chain fails or jumps, pistons can strike open valves, causing severe internal damage. That's why regular inspection of the chain and tensioner is critical—any unusual noises should be investigated immediately.
Jaguar specifies a 5W-30 synthetic oil meeting Jaguar WSS-M2C947-A spec. Always use a quality oil designed for supercharged petrol engines and change it at regular intervals (around 12,000 km or as Jaguar recommends) to ensure proper supercharger and chain lubrication.
Comprehensive technical documentation and regulatory references
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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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