That's a lot of plumbing! With the VW TDI "elephant hose" mod people ran the vent hose straight down toward the ground with a soup can secured under the open end. Gravity collected the oil which deposited in the can. It's not a lot of oil so the can never really filled up.
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2009 335d Barbera Red Metallic; Mods: BPC tuned, Bohl Diesel Performance, Laser Veil, BelTronics Pro 500
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