Apparatus and method for freeing a window of a motor car of moisture condensation and / or ice

The invention relates to a method and an apparatus (30) for freeing a disk (12) of a motor vehicle of moisture fitting (28) and / or ice (24) with an infrared beam means (32) for irradiating infrared radiation (36) (in the disk 12) and (with a control device 38) (for adjusting the energy of the (by means of the infrared-ray device 32) in the disc be irradiated 12) of infrared radiation (36), said sensor means (40) is provided, by means of which an absorption (84, 86) in the disk irradiated (10) of infrared radiation (36) detected and the detected absorption characterizing absorption signal (56) can be provided, wherein the control means (38) is adapted to receive and the absorption signal (56) (the energy of the be irradiated infrared radiation 36) in dependence upon the received absorption signal (56) to adjust.