1.9 2005....hi,hope someone can help.  Its looking likely i have head gasket failure due to no antifreeze  2 month ago.  i completely broke the propeller from the pump pulley and engine through out smoke.   I left car to thaw,changed the damaged water pump and refilled.  Ever since i am loosing water like 2 liters per 30 mile. Heaters get warm and not overheating,or pressuring at all from expansion tank.No oil contamination or signs in water. I have found out today where the water is loosing.   Bulkhead passenger side,there is like an overflow,something to do with the heaters,heater matrix,above glove box.It is directly under the brake pipes.  Its trickling out of that with felt pressure blowing from it,some wet also from this has got into pass footwell.   Is this some kind of blow off relief valve in even of the coolant system pressurising? thanks for any help

If you are getting coolant in the footwell, chances are the heater matrix is leaking or the pipes to it and the only pressure relief valve in the cooling system is the cap on the radiator or expansion tank.

thanks for reply,heater matrid had gone,sending coolant into the fan housing and out of some overflow to bulhead.