Ok guys your dead rite i know nothing about the Air Con system but have since found out that its not empty but the cable that engages the fly wheel had be disconneced, have since reconneced the cable and the Air con is working but now i need to know two things. When the EC button is pressed and the little red light is on should the fly wheel be engaged or not and the other question and prob why the cable was disconnected in the first place is when the fly wheel in engaged its making a banging noice and its causing stress on the belt, you can see the tensioning wheel moving side ways, Any Ideas.