I have just greased the runners on my Lag 11 front doors.
There is no plastic sheet fitted under the door covers on the Lag 11.
Carefully prise off the Black plastic door mirror cover inside the door, comes off easy.
There is no need to prise out the window switches.
Prise out the electric mirror switch and disconnect plug, easy.
Undo the screw for the door handle, screw under plastic cap.
undo 2 screws under the bottom of the panel.
Carefully use a flat screwdriver to lever off the panel, 2 or 3 plastic lugs each side of the panel.Lift the panel up and remove.
Remove the door light bulb asembly and the inside door handle cable, this will give you enough clearance to oil