as per manual.
turn off ignition-
remove panel below steering wheel-
disconnect wiring plug-
turn switch anti-clockwise about half a turn and remove switch.Note position of the spacer and bush-
refitting:
depress brake pedal and hold it in this position-
fit bush and spacer to switch ,insert switch into its mounting bracket and turn clockwise until it clicks back to locating recess-
release brake pedal and allow to rest against switch spacer tab--this ajusts the position of the swith body inside the bush-
now depress the brke pedal again- this has the effect of breaking off the spacer tab and fixes the position of the swith inside the bush-
replce wiring plug and panel
switch on ignition and test brake lights
good luck hope, its what you needed