Originally Posted by Mackskibum

One note of caution on ps leaks. Pay close attention to the crimps on the hoses. Routing can be interesting with a banjo to rubber to crimp to bent steel to rubber to banjo on both pressure and return. My 535xi went from drips to leak to quart of fluid in 50 miles when a crimp connection failed. 2 quarts of Pentosin and made it home with no hydraulic damage. Maybe an anomaly but worth a serious look. Typically if PS is low, there's a leak. Find where it went and make an informed decision. Just sharing my own experience.