One guy on bimmerfest post specific procedure how to replace seal
I also bought rear axle seal but I'll use A205 fist about 1oz
See my post here which includes procedure as well
https://www.bimmerfest.com/threads/r...#post-13813376
This is also link for seal which I bough from ebay
https://www.ebay.com/itm/36417255871...item54ca60417d