Oil filter check valve ??

[vin j]

Is there a anti leak back valve (check valve) for the oil filter housing on a 89 535 m30? I seem to remember reading somewhere that there was and they sometimes go bad and should be replaced so the filter doesnt back drain causing the oil pressure to take longer to build up after sitting over a few hours or so. Mine sometimes takes 6 sec before the light goes out.
thanx

[ArnZ]

Yep the housing has an inbuilt valve.

Other m30 owners should shed some light on the situation to confirm.

[E34N]

Yea.. I changed mine a couple years ago. You have to get the whole filter housing. I suggest you find someone parting a 91+ 535i. Dealer cost is around $200 IIRC. I got mine for $20 shipped. Easy install.. 4 bolts and a new gasket.

[vin j]

[BavarianFanatic]

I went the route of used housings a couple times and got tired of swapping them out. I ended up doing a remote mount and called it done.

[shogun]

old thread, just to add some info, a repair info is on my website, Low oil pressure at startup http://twrite.org/shogunnew/fixes/oilsystem.html