I was going to do this to ensure the correct level of anti-freeze and maybe help prevent problems with a possible head gasket going.
How do i do it - do I need any special techniques e.g. header tank and how do i get rid of trapped air - is it an issue?
What % of antifreeze should I mix with the water, i'm guessing 30%?
What is the volume of coolant for the 405 1.9 TD (1995).