After winning two amateur championships and the Amateur Coach of te Year trophy with Quick Boys, Aandewiel became manager of Haarlem in 2005. On 8 February 2007, when working as a coach for HFC Haarlem, he was named as the new manager of Sparta Rotterdam to replace Wiljan Vloet at the end of the 2006-2007 season. He was sacked by Sparta Rotterdam on 11 November 2007. He joined NAC and became joint caretaker-manager, then assistant to John Karelse.
In April 2012 Aandewiel announced he would become Armenia's FC Banants' youth development manager. In March 2014, Aandewiel revealed he would leave FC Oss in the summer after only a half year at the helm.