Possible causes of oil leakage from an automatic transmission:
1. Worn or damaged gaskets and seals:
* Transmission housing gaskets
* Shaft seals
* Pan seals
* O-rings
2. Cracks or holes in the gearbox housing:
*This may occur due to shock, corrosion or manufacturing defects.
3. Filter installed incorrectly:
* Improper installation of the filter may result in leaks.
4. Damaged oil pipe:
*Pipelines may be damaged due to vibration, corrosion or mechanical damage.
5. Excessive pressure in the gearbox:
* This may be caused by a faulty pressure regulator or a clogged oil filter.
6. Clogged transmission ventilation system:
* This may result in increased pressure inside the transmission and oil leaks.
7. Incorrect oil level:
*Low oil levels can cause overheating and component wear, which can lead to leaks.
*High oil levels can cause increased pressure and leaks.
8. Faulty oil pump:
* A worn or faulty oil pump may not provide enough oil pressure, which can lead to leaks.
9. Worn clutches and brake bands:
* Wear on these components can produce metal shavings that can damage seals and cause leaks.
Note: It is recommended that you contact a qualified mechanic to determine the exact cause of the oil leak and correct it.