Jaguar XF I (X250) V6 3.0D S 306DT Engine Overview
The Jaguar XF (X250) 3.0D S V6 with engine code 306DT is the high-performance twin-turbo diesel variant from the Ford–PSA Lion V6 engine family. Produced from 2009 to 2015, this version represents the top-tier diesel option for the first-generation XF, delivering 202 kW (275 hp) and 600 Nm of torque. It combines luxury refinement with strong, effortless acceleration, making it one of the most powerful and refined diesel engines in its class.
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 | 202 kW (275 hp) @ 4,000 rpm |
| Torque | 600 Nm @ 2,000 rpm |
| Fuel System | Bosch common-rail direct injection |
| Turbocharger | Sequential twin-turbo system |
| 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 S V6 was engineered to bring sporty performance and exceptional refinement to Jaguar’s diesel lineup. Using sequential twin-turbocharging, the smaller turbo delivers instant low-end response, while the larger turbo maintains power at higher revs, ensuring smooth and continuous acceleration.
Built with a compacted graphite iron (CGI) block and aluminum cylinder heads, the engine combines durability with reduced weight and vibration. Its Bosch high-pressure common-rail system (up to 1,800 bar) provides precise fuel control, improving throttle response, emissions, and efficiency.
The “S” version stands out with its increased boost pressure, uprated injectors, and optimized ECU mapping, resulting in 202 kW and a remarkable 600 Nm of torque — allowing the XF to accelerate from 0–100 km/h in just 6.4 seconds while remaining quiet and refined.
Key Specifications
-
Displacement: 2,993 cc
-
Power: 202 kW (275 hp) @ 4,000 rpm
-
Torque: 600 Nm @ 2,000 rpm
-
Fuel Injection: Bosch common-rail (1,800 bar)
-
Turbocharger: Sequential twin-turbo system
-
Timing: Belt-driven DOHC, 24 valves
-
Compression Ratio: 16.0:1
-
Emission Standard: Euro 5
-
0–100 km/h: ~6.4 s
-
Top Speed: ~250 km/h (electronically limited)
Reliability and Maintenance
The 306DT 3.0D S is known for its refined performance and long-lasting reliability when serviced regularly. The twin-turbo setup and high injection pressures require consistent maintenance with quality parts and fluids.
Recommended maintenance:
-
Oil and filter every 12,000–15,000 km (use 5W-30 C1/C2 low-ash oil).
-
Fuel filter every 30,000 km.
-
Timing belt replacement every 160,000 km or 8 years.
-
Regular DPF regeneration and long highway drives to prevent clogging.
-
Clean EGR and intake system every 100,000 km.
-
Inspect turbo oil feed lines and intercooler hoses periodically.
With proper care, this engine can easily exceed 400,000 km, maintaining strong performance and smooth operation throughout its life.
Why Choose the 306DT “S” Engine
-
Flagship twin-turbo diesel with 202 kW and 600 Nm
-
Smooth, effortless acceleration and excellent mid-range power
-
Proven Ford–PSA Lion V6 platform
-
Luxurious refinement with strong real-world efficiency
-
Long-term durability and high parts availability
Conclusion
The Jaguar XF (X250) 3.0D S V6 306DT delivers a rare blend of diesel efficiency and high-performance refinement. With 202 kW (275 hp) and 600 Nm of torque, it offers outstanding acceleration, quiet operation, and long-distance comfort. Produced from 2009 to 2015, this engine remains one of the best examples of Jaguar’s engineering — powerful, smooth, and built for lasting performance.
