ok, so it's not a turbo or a zecet s or anything sporty, just your bog standard mk 4.5 1.25, but this morning there was a whole lot of water and steam coming from under the bonnet, and when i've looked, there is a big dribble coming from the front of the engine lock

is it broken?
how broken is it?
how much will it cost to get fixed assuming it's really badly broken?

etc?

thanks