3308473 - 1080D crankcase vapour/gas recirculation system (Automatic transmission)
During engine operation, the oil vapours
coming from the crankcase are collected in the cylinder head.Some of the oil vapours condense and fall
back into the crankcase; the remaining vapours are sent to the inlet
via the pipes (1) and (2).At idle speed, the oil vapours flow through
pipe (1), and at higher loads through pipe (2).