In the doors of an MX5 NB (1998 - 2000), power windows ensure that the side windows raise and lower smoothly and in a controlled manner. Behind the controls is an interplay of switches, electric motors, cables and conductors that are stressed daily during opening and closing. On older cars you often see that cables wear out, conductors become more rigid or motors become more resistant due to dirt and age. Especially on a roadster, a properly functioning side window is important for sealing and comfort. When the mechanical parts of door and window guides also keep working nicely, the movement remains light and even.
