Mechanic took a look at the E46 I purchased and this was the only thing on the list I kind of had a question about.
What is a PCV Update?
He said that the vehicle had kind of a white residue build-up around oil filler cap and labor is described as - "REPLACE CRANK CASE VENTILATION SYSTEM WITH COLD WEATHER PARTS"
Dip Stick Tube
He also mentioned this does not have to be the case 'but'
Wondering if this is something I absolutely need done?