My 2006 commander v8 automatic lost its drive going up wee hill , lots of smoke under bonnet , then frothy pink fluid leaking on road . forward drive would not work ,but luckily could reverse off road ,then reverse stopped working , I t appears the smoke was fluid on exhaust. when it cooled down after delivery to my yard on rescue truck. the gears seemed to work ok . I checked the fluid level, it was above the two cold check marks although at idle it was heating up very quickly . any ideas on what was the cause and how to fix? There is a pipe sort of in front and above trans. dip stick looks like air con pipe this had frozen condensation mist stuff on it.