3.0 TDi oil leak all over belts and pulleys

[snapdragon]

I had an oil leak all over the belts and pulleys a couple of months ago and it seemed worse around the tensioner damper. I replaced this and the belt and cleaned everything up. Quite a job removing bumper, bumperbar, lights pulling front forward front end etc,... Fast forward to now and same again.

It must be leaking somewhere else, definately engine oil, not steering fluid.
As soon as it goes on the belts it sprays everwhere so really difficult to find the source but I suspect the oil pressure sensor when pressure is high which is in the block on the drivers side front behind the electropneumatic device mounted on rubber bushings. I suspect this because after scrupilous cleaning I can't imaging how the oil got flung into the crevice that was clean last nigh but oily now.

Anyone else had this?
I will pick one up £8 on the way home from GSF - wish me luck.