93.9 BayFM Geelong
Police started pursuing the allegedly stolen car in Melton around 1 this morning before calling off the pursuit when it became too dangerous.
Officers from Sunshine found the car dumped in a creek at Ardeer Creek around half an hour later.
The 13-year-old boy is from Tarneit, a suburb of Werribee.
The three boys and a girl are also believed to be helping police with their investigation into an armed robbery at a Deer Park service station overnight, as well as an incident in which a security guard was hit by a car after it sped off from a shopping centre at Sydenham.