VW Passat B5/ Audi A4 Differential Fluid

Easy job that everyone needs to keep on top of.  These cars leak fluid.  At least mine all have. Not sure if VW uses cheap gaskets or I have just been unlucky.  Anyone else have leaky seals. I know I should replace them.  But that would require getting whole car on jack stands.  Lots of work.  But now that I think of it.  That will be my next video.    After I replace the O2 sensor on the v6.