Oil Level Control

Position/Task/Design/Function

Component Illustration:

Position
The oil level control is located in the electric valve control unit (Y3/6).

Task
To plug the opening between the oil gallery and gearset chamber so that the rotating gearsets do not splash about in oil as the oil level rises. The oil level control reduces power loss and prevents oil from being thrown out of the transmission housing at high oil temperatures.

Design
The oil level control consists of the float (45) which is integrated into the electric valve control unit (Y3/6).

Function
With low oil levels, the lubricating Oil which flows constantly out of the gearset, flows back to oil gallery (A) though the opening (46). If the oil level rises, the oil presses the float (45) against the housing. The float (45) therefore separates the oil gallery (A) from the gearset chamber (B). The lubricating oil which continues to flow out of the gearsets is thrown against the housing wall, incorporated by the rotating parts and flows back into the oil gallery (A) through the upper opening (arrow).

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