change coil packs, plugs,new plugs,when reaching temp the car start to missfire , it come and go -

Help! I can't find the battery in my A-3!
Does anyone know where to locate my battery? Anyone?

the car started at first ran for 30 seconds cut off and almost started a second time
i am wondering if i connected the 2 hose side of the filter correctly maybe i switched hoses - i cant find a fuel line diagram to confirm

do i need torx and hex
or will my standard sockets work
if so do you know what size