Mombaerts began his coaching career with
Paris Saint-Germain, taking charge between October 1987 and February 1988. Mombaerts was manager of
Guingamp during the 1989–90 season. He left that position in October 2012. Mombaerts became manager at
Le Havre in December 2012. He resigned in December 2014. He was appointed as the head coach of Japanese club
Yokohama F. Marinos in December 2014. Mombaerts stepped down as head coach of the Marinos at the succession of the
2017 Emperor's Cup, on 1 January 2018. Mombaerts was appointed manager of
Melbourne City on 27 June 2019. On 3 September 2020, he stood down from the coaching role at City to return to France, handing the coaching reins over to his assistant
Patrick Kisnorbo. ==Managerial statistics==