Inlet manifold Replacement Land Rover Discovery 3 and 4

Do you need to replace the inlet manifold on your Land Rover Discovery 3 or 4? Watch this video for a step-by-step guide on how to get the job done.
This is a common fault and it is expensive to get done in a garage/workshop due to the hours involved in doing the job.
However, it is do-able with mostly basic tools.