hi everybody i have a renault espace 1998 diesel 2.2 dt engine and have these problems which wasn't solved for a long time.. WHEN AC or heater is open for quite some time around 3 or 4 hours hot water under the dashboard starts to pour thinking that it was condensation tried to clear the condensation hose but it is all ok.. someone says that it is heater matrix.. but don't know about it.. has anybody had some experience of this need help very badly since it is getting hotter and i need to open the aircon...