Renault Megane car will reverse but wont move forward

Hi,have you dropped your old transmission fluid,warm,and put in new,?If yes, run your car on tick over untill on running temp,then put your foot down on your brake,and move your stick from park,to drive for a couple off seconds,then newt,then reverse,then your low drives,each one for a few sec's,then do it again,then put into park,then check your transmission fluid again,dont think you have put in enough,good luck

yes do as tonth says but try not to over fill or you will destroy the transmission

did you do this to resolve a problem before hand