Longitudinal substrate and wiper for motor vehicle

The invention relates to a longitudinal substrate for wiper for motor vehicle, comprising: - a longitudinal guide (2; 25) to receive a spline (3) of said wiper, and - wiping blade fixation means to maintain the wiping blade (5) of said wiper, characterized in that the longitudinal substrate comprises at least one holder (18; 23; 24; 29) configured to maintain at least one heating element (15) of the wiper. It also relates to a wiper comprising such a longitudinal substrate.