Empirical studies have repeatedly shown that in Germany educational success still strongly depends on the social origin of individuals. Using the National Educational Panel Study, we analyse the effects of fathers' and mothers' education levels on their sons' and daughters' educational attainments across three successive birth cohorts in West Germany. We calculate the predicted probabilities of reaching low, medium or high education levels on the basis of the level of education of the mothers and the fathers. Our results show: a persistence of the status maintenance model, with very few exceptions; a growth in the educational level of women via medium-level education connected to segregation in the labour market; and finally that the first transition of girls to medium-level education has been completed, leaving space for daughters to attempt to outnumber sons in tertiary education, mainly due to the pressure of mothers.