The 157 meter long, 7894 dwt vehicle carrier City of Mumbai became disabled whiel off Kea Island near Piraeus, Greece.  The vessel had suffered engine failure and had contacted authorities.   The authorities had planned to send a tug to assist the vessel, but the crew was able to make repairs and restore power.   The City of Mumbai proceeded to an anchorage near Lavrion where authorities where the vessel was inspected.  The vehicle carrier has allowed to proceed on its voyage later the same day.   No reports of injuries, damage or pollution released.