Not sure if you have undone the right ones but any lower oil home that only drops a teaspoon would worry me even if it's an air lock and the top one is the wrong one!
hi everyone for your help if you where to take the passenger side wheel off there is a plastic cover to protect the end of the gear box and on the end there is one big allen key plug and about 3 inches above it there is a smaller allen key bung?
then further arounf right next to where the drive shaft goes into the box there is a spanner bung and right at the bottom of that there is a square female bung
not sure which one is which if this makes any sense
i have the xdi manual diesel thanks for all your help