Chris a Posted November 12, 2017 Report Share Posted November 12, 2017 (edited) sorry a bit long winded. 328i m52 suprise suprise have had a oil leak on the car since owning it (2yrs) have replaced the rocker cover gasket twice non gen and gen. just replaced the oil filter housing gasket. have replaced the oil filter housing cap gasket numerous times have torqued up to correct spec and tightened up ft .i was washing the engine off to see where the leak is coming from now have noticed it leaking past the oil filter cap gasket again.so my question is are the oil filter housing caps prone to warping with only being plastic and how old the part is. car is almost 20yr old thanks Edited November 12, 2017 by Chris a Quote Link to comment Share on other sites More sharing options...
lozevans Posted November 12, 2017 Report Share Posted November 12, 2017 Try a mann filter mate, have had same prob recently after service, found that the mann filter rubber seal is slightly wider than your normal oil filter. Hope that helps, Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...