25+ 2008 Bmw 335I Coolant Hose Diagram PNG. How to bleed bmw with electric coolant pump. Particularly helpful are bentley (searchable pdf) and tis.
I don't have a 335 so can't suggest a likely suspect, but basically it's just a matter of.
I filled it up with distilled water and bmw coolant (originally had bmw coolant). But it looks like your diagram is missing a hose. Locate hoses locate the coolant hoses and connection points. Then remove hose by loosening hose clamp (green arrow) and pulling hose off thermostat.