how can i fix my 2000 vw passat?

you will have to jack car up and look for a drain plug at bottom of g/box,sorry dont know on your model but refill plug could be around the diff.area,if in doubt get a manual and dont fill anything into engine bar engine oil,try a motor factors in your area,give them your reg.no.and they will give you the correct oil for your g/box and ask them about some additive if you want to try some of that too,good luck

cdc
January 2011