drove off in car today turned heater fans on and had water pouring into passenger foot well .  :( got car back to my house had a look under dash to check heater matrix but all was ok no water any where  :-? had a look under the scutle panel on passenger side . it was full of rain water the drain off"s were blocked with old leaves .and the water was coming through the pollen filter   :o removed all debris all ok now so if you see water in your car check scutle drain off"s .just thought id share that bit of info with you guys