Only the third generation of Range Rover SUVs had the 3.0-liter Land Rover 306D1 or Range Rover 3.0 TD6 engine installed prior to its initial redesign. The engine was built between 2002 and 2006.

The 204D3, 256T, and 306D1 are jointly developed engines with BMW.
Specifications
| Production years | 2002-2006 |
| Displacement, cc | 2926 |
| Fuel system | Common Rail |
| Power output, hp | 177 |
| Torque output, Nm | 390 |
| Cylinder block | cast iron R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 84 |
| Piston stroke, mm | 88 |
| Compression ratio | 18.0 |
| Features | intercooler |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | Garrett GT2256V |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 8.75 |
| Fuel type | diesel |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Range Rover 3.0 TD6 2004) — city — highway — combined |
14.4 9.4 11.3 |
| Engine lifespan, km | ~350 000 |
The engine was installed on:
- Land Rover Range Rover 3 (L322) in 2002 – 2006.
Disadvantages of the Land Rover 306D1 engine
Although the engine requires high-quality fuel, it can run for a long time with proper maintenance;
Constant fogging on the nozzles or the crankcase ventilation valve causes a lot of problems here;
Swirl flaps on the intake manifold may come loose and fall directly into the cylinders;
A sudden crankshaft breakdown frequently occurs on runs longer than 200,000 kilometers;
The crankshaft damper pulley and electro-vacuum bearings are the engine’s weak points.
