Thanks spiro used your post to do my renault espace, hoses in slightly different places but heaters now work.
Hi Ericose what madel of Espace do you have? And what did you do?I can't see how to get at the matrix hoses on the drivers side. I have tried as best I can to flush my one out a la spirochete but no go. The driver side heater is still cold in my 2.2dt Espace.