It's been almost a month when i first noticed some oil leak on the underfloor panel of the auto tranny zf 6hp19z of my 520d 2006 model. i checked it myself and traced that the area under the mechatronics sleeve connector had some oil on.
I bought some litres of oil the plastic pan and the mechatronics sleeve in order to replace them. I went to a mechanic today and when he raised the car he discovered that the oil was not coming from the outside of the sleeve but from the inside. there was oil Inside the plug connector. Usually i have read that the leak problem on that zf tranny is the plastic sleeve connector and not the plug connector itself.
The mechanic told me that there is nothing to stop that kind of leaking unless we replace the whole mechatronics unit. of course that's something i don't want to think for the moment. we also checked through the filler plug if we should add some oil but it seemed to be ok.
Has anybody had any kind of leak like that?

Thanks in advance.

 

common problem, it's broken, you can't repair it, replace it.