BMW M3 transmission leak issue after lower gasket replacement on BMW M3

Some BMW M3 owners report experiencing transmission leaks even after replacing the lower gasket, often due to issues with the connector sleeve or other components that may need further inspection. These leaks can also stem from damage to the transmission pan, which is vulnerable to road debris and corrosion if not properly maintained. Additionally, some owners find that inadequate tightening of components or damage can compromise seals, leading to fluid leaks. In some cases, replacing the sealing sleeve is necessary, which involves removing the transmission pan and draining the fluid to replace the gasket and filter. Prompt attention to these factors is essential for effectively addressing transmission leak issues.