Hi ,I have recently bought an 80 avant 1.9 tdi, although high on mileage it has had a top end rebuild ,new radiator and normal suspension issues are sorted...although the heater matrix was recently changed ,there is still a slight dampness in the drivers side footwell so I think there is probably a small leak somewhere here...how do I go about checking this out...also the chap who sold me the car said the water pump might need changing within the next few thousand miles ...again what is involved here???
Many thanks