are you shure its steam not smoke Yeah i'd check that out mate - i've been driving mk1's 10 years and never heard of steam in the car - I used to get a bit of smoke a while back, i ignored it hoping it would just go away (as you do ) it wasn't til i nearly passed out at the wheel i thought i'd better investigate, turned out i had little crack on my downpipe and so every time i stopped i was getting exhaust gasses coming in through the vents not recommended, stick with the bud its a much nicer buzz Back on the steam i've just had another thought...... it could be one of your washer jet pipes leaking water into the blower as it lives just below the washer jets - also whats the state of you're scuttle tray (the big bit of plastic at the back of the engine that covers your wiper mechanism etc...) if thats cracked water could be getting to the blower that way