So from Mr Google search I have come up with this:
This seems to be a semi common occurrence on the 3.2 Did Pajero early gen4 so far. It seems to be hairline crack in oil cooler. Withpart replaced and flushed you should hopefully be good to go, but the oil cooler replacement is COSTLY. The guys down under are crying, can't even imagine what it will cost in SA with our current Rand.
See this thread for details.
https://r.tapatalk.com/shareLink?url=ht ... are_type=t
Per that thread it might be mitsu part number 1240A055
CATS
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2009 Pajero 3.2 DiDc Lwb GLS (Gen4) - Casper (Starting to grow on me)
2001 Pajero 3.2 DiD Lwb GLS Manual (Gen3) - Snoopy (SOLD but not forgotten)
2008 Pajero 3.2 DiDc Lwb GLS Auto (Gen4) - Silvester (SOLD)
