WIPER OF MOTOR VEHICLE

The invention relates to an accessory for wiper of motor vehicle comprising at least one heating channel (16; 16a, 16b) for receiving a heating element of the wiper, characterized in that said accessory (6; 10; 26) is made of a first part (17; 27) movable with respect to a second part (18; 28) in order to open said at least one heating channel (16; 16a, 16b) longitudinally. This invention also relates to a wiper of motor vehicle comprising such accessory.