Police have confirmed Gerald VanDerWerf is still missing in the Grampians Halls Gap area.
There are concerns for his welfare.
A Victoria Police spokeswoman said the search for Mr VanDerWerf was continuing on Wednesday, with police officers and SES volunteers involved.
Police appealed for public assistance on Sunday to help locate the 56-year-old Melbourne man.
Previously – Sunday
STAWELL police and emergency services mounted a search for a missing Melbourne man near Halls Gap on Sunday afternoon.
Police have appealed for public assistance to locate missing 56-year-old St Kilda man Gerald VanDerWerf.
Police believe Mr VanDerWerf drove to the Grampians in the past 48 hours and was travelling in his grey 2005 Toyota Hilux with Victorian registration TSV 522.
The Toyota has since been located by police in a car park on Grampians Road, Bellfield, near Halls Gap.
Police and Mr VanDerWerf’s family hold concerns for his welfare as he has a medical condition.
Investigators have released an image of Mr VanDerWerf in the hope that someone may recognise him and provide information on his current whereabouts.
Mr VanDerWerf is described as Caucasian, with a thin build and short greying hair.
Police have asked anyone who sees Mr VanDerWerf to phone St Kilda Police Station on 9536 2666.