I have oil leaking from the cable at the left rear of the transmission. What is
needed to repair the leak? I have not been able to find the cable or any seals
for this cable. I have the pan off and the screw which holds the cable in place removed but that is as much as I have been able to disassemble. Any
help with this oil leak would be great. Thank you in advance.

thats the park lock cable, that entire part with the accordion boot is available as a spare part and costs less than 20 dollars.

Its not that hard to remove if you are savvy enough to take off the pan and work a few tools in it.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Thank you Zulfiqar,
Dealer had the part at $17.50. Also found some detailed info. on replacing this item on
the ATSG site.