Megane II vehicles are equipped with internally ventilated alternators with built-in voltage regulator and warning light that comes on and off when the ignition is turned on:
The principle of operation of the exterior light switch, direction indicators and fog light and wiper switch
Put the car on a two-post lift
Remove the top engine covers.
Mount the mount plate (BVi1581) to the stand (Desvil).
Disconnect the negative battery terminal
To access the roof drive motor, remove its upholstery