Coolant Header tank - hairline crack!
 

Noticed steam coming out of my new STi this morning, and my heart sank.:freak3:

I've traced it though, to a hairline crack on the coolant header tank, the shaft where the cap screws on to.

I'm assuming this is easy enough to replace, but anyone know where I can get a replacement one?? new or used I guess.

Same trip, the engine management light came on at 7k rpm (but I'm lead to believe this is not uncommon, and should reset after a few engine restarts)

Many thanks
Justin