220d Diff seal and oil replacement

[Ashlenr]

Hey guys, need some advice on replacing seals on my leaky 220d diff and replacing the oil. Any recommendations on who can do this replacement. Are there also diff oil and seal alternatives since bmw is asking a lot for just half a liter.

 

[KPM3_30]

I had my e92 done at TuneTech earlier this year, they replaced the pinion and side shaft seals plus new diff oil.