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 by Ford and PSA (Lion family). Produced from 2009 to 2014, this engine replaced the earlier 2.7D unit, offering more power, refinement, and improved fuel efficiency. Delivering 177 kW (241 hp) and 500 Nm of torque, it provides the XF with a smooth, effortless driving experience and strong performance both in city and highway conditions.
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 | 177 kW (241 hp) @ 4,000 rpm |
| Torque | 500 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 – 2014 |
Engine Overview
The 306DT 3.0D V6 engine was designed to bring luxury, refinement, and performance to Jaguar’s executive sedan range. Using sequential twin-turbocharging, it delivers smooth and instant acceleration — the smaller turbo works at low revs for quick response, while the larger turbo engages at higher speeds for sustained power.
The engine uses a compacted graphite iron (CGI) block for strength and reduced vibration, paired with aluminum cylinder heads for efficient heat dissipation. Its Bosch high-pressure common-rail system (up to 1,800 bar) ensures precise fuel delivery, improving both power output and fuel economy.
This combination of advanced turbocharging and precision engineering gives the XF 3.0D a refined yet powerful character, perfectly suited for luxury cruising and dynamic driving alike.
Key Specifications
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Displacement: 2,993 cc
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Power: 177 kW (241 hp) @ 4,000 rpm
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Torque: 500 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 engine is well-known for its refined performance and durability, especially when serviced with quality oils and filters. Regular maintenance helps prevent issues common to high-performance diesels such as turbo soot buildup and EGR clogging.
Recommended maintenance:
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Oil and filter every 12,000–15,000 km (use 5W-30 C1/C2 low-ash oil).
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Fuel filter every 30,000 km.
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Replace timing belt every 160,000 km or 8 years.
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Clean EGR and intake system every 100,000 km.
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Regularly check for DPF regeneration and keep the cooling system in top condition.
With proper servicing, this engine can easily exceed 400,000 km while maintaining smooth, powerful operation.
Why Choose the 306DT Engine
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Twin-turbo setup for smooth and linear power delivery
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Strong 500 Nm torque for effortless acceleration
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Quiet and refined V6 diesel performance
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Proven Lion-family reliability and longevity
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Excellent balance of power and fuel efficiency
Conclusion
The Jaguar XF (X250) 3.0D V6 306DT engine offers a blend of luxury, strength, and reliability that defines Jaguar’s character. With 177 kW (241 hp) and 500 Nm, it delivers seamless power and refined performance while maintaining impressive fuel efficiency. Built from the robust Ford-PSA Lion platform, the 3.0D remains one of the most respected and durable diesel engines used in Jaguar’s lineup between 2009 and 2014.
