[onetwentie]

Thanks again for the reply Del.

I've parked the car in such a way now that its not obstructing and so can stay overnight on a axel stand if necessary (or I can put the wheel back on).

I am going to attempt the removal of the compressor as I think it is suspect.

Incidentally where is this valve block you speak of?

PS I do have the car in Jacking mode anyway to be on the safe side, however I understand it may not be wise to drive the car until the compressor is back on the car.

Also does anyone know how loud this compressor/pump is when it is working? should I be able to tell easily that it is running/on?