After returning to Germany, he first assisted his half-brother in re-building the family firms, and then from 1949 to 1953 studied mechanical engineering in Hanover and Stuttgart, where his family owned large firms (AFA/VARTA in Hanover, a private equity firm in Stuttgart).
返回德国后，他首先协助他的兄弟重建家族企业，然后从1949年到1953年在汉诺威和斯图加特学习机械工程，他的家族拥有两个大公司（ AFA / VARTA在汉诺威，私募股权公司在斯图加特）。