A process for manufacturing a hydrophobic glazing by: (i) forming a carbon-rich SiOxCy layer at a surface of a mineral glass substrate via CVD by contacting the surface with a stream containing C2H4, SiH4, and CO2 with an C2H4/SiH4 ratio of less than or equal to 3.3 by volume, at a temperature of between 600° C. and 680° C.; (ii) forming a SiO2 layer or a carbon-poor silicon oxycarbide layer with a mean C/Si ratio of less than 0.2 on the carbon-rich SiOxCy layer, thereby obtaining a layered substrate; (iii) annealing and/or shaping the layered substrate at a temperature of between 580° C. and 700° C.; (iv) activating the SiO2 layer or the carbon-poor silicon oxycarbide layer by plasma treatment or acidic or basic chemical treatment; and (v) grafting, by covalent bonding, a fluorinated hydrophobic agent to the surface of the SiO2 layer or the carbon-poor silicon oxycarbide layer.