right so basically my car has kicked me in the teeth and my oil has started getting that white froth in that obv means there's water in the oil, likewise with the coolant. its only just happened but i have noticed the coolant levels dropping quite alot which maybe was an indicator of it ready to happen. So i'm in desperate need of help with the following; could it be anything else other than a cracked head? how much are we looking at for a new one (with and without fitting)? i'm going to bleed the water and oil, and freshen them up to see if it happens again. i think i'm going to blame it on the weather if it is cracked and the water has frozen and expanded therefore cracking the barrel. anyone whos had similar problems or knows anything of interest or help can you please get back ASAP. oh and one more thing, my MOT is due this week, will this fail on that or is it purely safety checks they're concerned in? thanks in advance to any posts.