80k mileage 1/02 build 4.4i (no dealer or other warranty remaining). Seen minor signs of my gearbox sump/pan gasket weaping.Dealer quoted to Replace transmission oil filter inc fluid and gasket, (£193.79 UK Sterling).
Knowing cost of the ATF (in bmw bottles) I thought the price was good though I will be checking to make sure the ATF is correct. Getting mine done at dealer as I still have have full bmw history and know if I do a diy I will forfeit any possible goodwill claim in event of later failure. (I can easily diy swap some correct fluid in a year or so if I still have car - they wont know).


The ZF(not bmw) filter kit consists of Screw Plug M16x1.5 & O-Ring

Anyway the question is :

Do folks who have done this think there is a real need to replace the Screw Plug and O ring with new items ?

Comments on condition of old "o ring" & "plug" when you guys changed them appreciated........Dont want to ask for same if not needed as confusion will cause problems for them ! cost no issue

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Black & Black E53 X5 2002 4.4i Sport