I'm another one who's been having problems with losing coolant, I keep filling her up (her being a 2002 TD5 ES auto). Heater not working correctly either very sporadic bursts of heat coming out or cold gusts, but tonight when filling up the coolant tank I heard a sort of dribbling/burping from beneath, I flashed the torch downwards and saw that there was indeed water coming from somewhere. Unfortunately it was dark and without removing the header tank it's hard to see where the leak is coming from. Anyone fancy having a guess? We've moved recently and my Haynes manual is in storage so I'm going to have to look around on the internet to find out where the pipes from the coolant go. Process of elimination! Also I want to order the parts before Xmas otherwisw could be a long wait