the switch is located near the bottom of the gearbox ,you need the car high off the ground ,unless you have got a car ramp ,you will see the switch when you have removed the engine under tray , then disconnect the switch get your new switch ready to fit ,thenremove the old switch and put your finger over the hole to stop the oil , fit the new switch as fast as you can , then reconnect the wiring , then you need to top up the gearbox oil to the required level.
mark
May 2008