Jaguar XF I (X250) V6 3.0D 306DT Engine Overview
The Jaguar XF (X250) 3.0D V6 with engine code 306DT is a 3.0-liter twin-turbocharged diesel V6 developed jointly by Ford and PSA (Lion engine family). Used from 2009 to 2015, this version produces 155 kW (211 hp) and offers a refined balance of smooth performance, quiet operation, and fuel efficiency. It served as the base 3.0D option in the XF lineup, positioned below the higher-output 177 kW version.
Compatibility & Performance
| Specification | Detail |
|---|---|
| Engine Code | 306DT |
| Displacement | 2,993 cc (3.0 L) |
| Configuration | 60° V6, twin-turbo diesel, DOHC, 24 valves |
| Power Output | 155 kW (211 hp) @ 4,000 rpm |
| Torque | 450 Nm @ 2,000 rpm |
| Fuel System | Bosch common-rail direct injection |
| Turbocharger | Sequential twin-turbo setup |
| Emission Standard | Euro 5 |
| Transmission | 6-speed or 8-speed automatic |
| Drive | Rear-wheel drive |
| Production Years | 2009 – 2015 |
Engine Overview
The 306DT 3.0D V6 brings together refined power and exceptional smoothness typical of Jaguar’s diesel lineup. It uses a sequential twin-turbocharging system, where one smaller turbo provides boost at low revs for quick throttle response, and a larger turbo takes over at higher speeds for sustained power.
Constructed with a compacted graphite iron (CGI) block and aluminum cylinder heads, the engine offers an ideal mix of strength and lightness. The Bosch common-rail injection system (up to 1,800 bar) ensures precise fuel metering, contributing to responsive performance and excellent fuel economy.
Although tuned slightly lower than the 177 kW variant, this 155 kW version delivers the same refinement and reliability while offering better efficiency and lower running costs — ideal for daily and long-distance driving.
Key Specifications
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Displacement: 2,993 cc
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Power: 155 kW (211 hp) @ 4,000 rpm
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Torque: 450 Nm @ 2,000 rpm
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Fuel Injection: Bosch common-rail (1,800 bar)
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Turbocharger: Sequential twin-turbo system
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Timing: Belt-driven DOHC, 24 valves
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Compression Ratio: 16.0:1
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Emission Standard: Euro 5
Reliability and Maintenance
The 306DT 3.0D engine is known for its robust design and smooth operation, as long as regular maintenance is carried out. With proper care, it provides excellent long-term durability and performance consistency.
Recommended maintenance:
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Change oil and filter every 12,000–15,000 km using 5W-30 C1/C2 low-ash oil.
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Replace fuel filter every 30,000 km.
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Timing belt replacement every 160,000 km or 8 years.
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Clean EGR valve and intake system every 100,000 km.
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Ensure DPF regenerations are completed with regular longer drives.
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Maintain the cooling system and check turbo oil feed lines.
Proper maintenance helps this V6 easily surpass 400,000 km, delivering quiet, powerful, and reliable performance throughout its life.
Why Choose the 306DT Engine
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Smooth and refined V6 diesel operation
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Strong mid-range torque (450 Nm)
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Sequential twin-turbo setup for instant response
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Proven Ford-PSA Lion engine platform
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Excellent fuel efficiency and low emissions
Conclusion
The Jaguar XF (X250) 3.0D V6 306DT engine with 155 kW (211 hp) and 450 Nm of torque perfectly combines luxury, refinement, and efficiency. Built on the dependable Ford-PSA Lion architecture, it delivers effortless power and long-lasting reliability. Produced from 2009 to 2015, this version remains a popular and trusted diesel option for those seeking a balance of performance and economy in the first-generation Jaguar XF.
