Replaced the 4.8is' air suspension pump. Actually not half bad, everything thing went smoothly. The push fittings were pretty nifty. Thankfully a friend of mine had the special BMW tool to remove the power wire pins.
Hopefully this cures the dreaded code 74 once and for all!
Surprisingly Autohausaz retails the WABCO pumps under arrnot
Not sure what I'll do with the old pump though

, i mean it technically still works, but since the seals were done once already, I doubt i should touch em again. (Likely overworked due to a now replaced strut)