The prospect of dropping the dash out to access the leaking heater matrix is a bit daunting. Has anyone ever done this job and if so do you have any hints (other than take it to a garage!). Are there any Citroen special tools required? Assuming it is a weeping matrix, and not a hose, how much would I reckon on paying for a new matrix. I've heard some very scary numbers! Two days about right for this job? Any advice would be greatly appreiated. Thanks guys.