Posted a tread earlier in the week, thinking that it was smoke coming through my interior air vents. After further investigation it appears it could be steam, due to the lack of smell and the fact it doesnt have any trates like exhaust fumes. The car is using what i think is more than usual in water having topped it up twice in the past couple of days. Any thoughs???? Could it be that there is leak and its managing to get into the heater matrixs?? Its due to go into mini this week but to be honest as probably most people i would like to avoid this if possible.