At the risk of making myself look very very silly , I need to replace the header tank on a mk4 escort XR3i because mine is cracked. Is this relativley easy to do or do I need to take it to a garage?? If any one could give me an idiots guide that would be great as I don't fancy paying ridiculous labour fees if it's something I can do myself with a little guidance. A friend of mine said it's a case of draining it by unclipping a hose at the bottom (I reckon it'll need new jubilee clips because i'm betting they're pretty frickin rusty) unbolting it, unclipping the hoses and then vice versa putting in the new one, is it really that simple???? any help AT ALL would be great