How many mechanics does it take to fix a car? In this case three. You see my car has been smelling terrible lately. Not of fuel or oil or anything like that. My passenger side floor has mould. It is disgusting. The first two mechanics that I took the car to couldn’t work it out. There was no holes or leaks in the floor. The problem went undiagnosed until Ferntree Gully Mechanic checked out my car and discovered the leak was coming through the engine and underneath the glovebox. This meant that any time it rained (it is winter) the water came through and leaked onto the floor rotting the carpet. Three Mechanics, one car and one very bad smell.