jack up car , support on stands at bottom of auto box will be 24mm plug with a smaller one through this loosen both then nip back up hand tight as car will need to be level, drain off oil fit bigger plug then start topping up (filler on front of box) when oil starts coming out screw other plug in and start going through gears let it get up to temp think about 80 degrees c loosen smaller plug again top up til starts coming out again .hope this helps as while since done one p.s if oil is brown colour discard completly must be pinky/red colour
paul, July 2016