Gazza,
I got mine from supercrap I think up in Qld on a trip. Cost around $15 from memory. I'm not sure if they'd work on a 200 or 300 tdi but they have been awesome for the Td5. You have to squeeze in a tiny gap on the Td5 but length isnt so much of a problem. Someone else will know if they work on the older motors though.

