2001 Land Rover Discovery 2

CHECKING FLUID LEVEL
Ensure that gearbox is cool. Apply handbrake and securely chock front and rear wheels.
Place a suitable container beneath gearbox.
Clean area around oil filler/level and drain plugs.
Remove oil drain plug, remove and discard sealing washer. See Fig. 2.
Select Park.
Ensure handbrake is applied.
Start engine and allow it to idle.
Apply footbrake.
Move selector lever through all gear positions, while continuing to fill the gearbox. Select Park.
With engine idling, gearbox should overflow through drain plug by about 2 mm bead of oil running out.
Fit new sealing washer to automatic gearbox filler/level plug, fit plug and tighten to 30 Nm (22 lbf.ft).