problem changing cash oil

Good I have a 2006 Renault Megane Classic I made the change from oil to the automatic box but by comfort I use the screw that is at the head of the box (star type, but I do not notic it that the box was in speed (in d) and something that the screw supported was moved and now the car does not apply changes of any kind there would be some way to solve it without having to lower and open the box

I do not believe, if something fell, you have to put the part in place and put the screw. In general, these screws are drum band settings or something. Not for the cost of a transmission carter packaging that is worth one hundred pesos at most risk a 10000 transmission

Very difficult because the dead only if you are lucky will look in position, it is best to lower it so as not to have more serious problems later.