What are the causes of transmission oil leakage in small cars?

1 Answers
ColeLee
07/30/25 1:51am
Transmission oil leakage in small cars can be caused by issues such as aging lines. Factors causing oil leakage at the oil seal neck: Oil seal aging and deformation, oil seal spring detachment, or incorrect installation direction of the oil seal can all cause the oil seal to lose its oil-blocking function. The aged or deformed oil seal should be replaced. Line factors: If the lines are damaged, oil may leak from the damaged part of the pipeline during circulation. Factors at the gearbox joint surface: If the joint surface of the gearbox is damaged, an appropriately thickened paper gasket should be added at the damaged area. If oil leakage persists, welding repair should be performed. Function of transmission oil: Transmission oil serves purposes such as lubrication, cooling, and rust prevention. Leakage of transmission oil can cause significant damage to various components of the transmission, so regular maintenance is essential.
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