It's to keep it from freezing as well.BlackBart wrote: ↑15 Sep 2018, 11:53 That's the way mine looked, for an XC turbo, yes.
That combo line had vapor pipes, coolant pipes - not clear why the water is passing through this assembly. Attaches to the back (drivers side) of the head and the thermostat housing.
<EDIT> This conversation says the coolant lines have to do with keeping the oil vapor warm and not condensing in the little lines...(?) Makes sense.
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Oil Filler Tube
- Rattnalle
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Re: Oil Filler Tube
- oragex
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Quite a few tubes and it's still missing a throttle body gasket
Several Volvo Repair Videos https://www.youtube.com/playlist?list=P ... s0FSVSOT_c
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