Ford Focus Eco 1.0 2012 Crack coolant pipe/engine damage?!

[allyally]

My ford focus eco 1.0 is about 2.5 years old purchased from new.
My car heating wasn't working so I booked it in to be checked. After a few days of continuing to drive it before they had seen it a light flashed up "engine failure" "service immediately" these are the first warning signs I have had. Today ford took my car. I rang them to find out that it has a cracked coolant pipe...and potential engine damage because all the coolant has leaked out from the cracked pipe!!!!!!!!!
I'm very worried about all of this (
I've been googling...only thing I could think of doing to find out more whilst they take my engine apart to find out how and if damaged ( on my searches I've come across a few posts about brand new fords having issues with coolant pipes cracking? Does anyone have any insight into this at all? Any help would be wonderful as I don't know where I stand with this. No don't know when I'll get my car back, it's essential for getting my children to school and me to work etc and worried about if this will be covered by warranty...HELP (
Many thanks for reading my post Ally

[allyally]

Thank you for all your replies so far! Will read through the thread in a mo!

Shall I add my post to gassing?

Also I am a typical girl who doesn't know much about cars ( and really didn't expect anything to be seriously wrong as it's been serviced recently, I have taken note re if car heating isn't working, thank you.
As for the loan car, they don't have any to borrow till Friday!! We will have to get up early and cycle to school and work lucky not rain forecast!
Thanks again...