Many thanks for your quick reply. Yes there is coolant loss,so i,am still thinking its the matrix. N/S only footwell is wet and has been for sometime rust around alarm module/recess the vechicle is a left hooker and it lives in spain (no heater no prob?)and no so much rain so i think that the amount of staining/rust must be more than just a blocked drain or rear washer feed. Maybe combo of problems there is staining on the bulkhead sound deadening revealed when scuttle panel was removed (drives side/opp side to pollen filter). Will check your suggestions get back,thanks again.