Hi lads is the breather valve on the e39 525i the same as the crankcase breather filter ? http://www.micksgarage.com/search.aspx?fffDepartment=Crankcase%20Breather%20F ilters&fffMake=bmw&fffBasemodel=bmw%205-series&fffModelDescription=5%201995%20to%202003&ff ftd_car=525%20i&fffBHP=192

I'm doing an overhaul on the engine oil seals and rocker cover gasket