Differential Fluid Change

[KNS]

I am going to do a Diff. fluid change (tranny too) on my '04 325i. Do the drain plugs on the differential have washers on them?
Thanks....

[Island]

Yes they do, they can usualy be re-used.

[Jeron]

I can't remember if the E46 has clearance issues getting to the drain plug like the E36. If it does not just any hex socket will work. I think it is 14mm but I'm not sure.

Pull the fill plug first.
1 to make sure you can get fluid back in
2 to check level
3 it lets air in so the fluid drains without splattering

[KNS]

Thanks guys. I checked for access and it's okay. It is a 14mm too.