Before I go to all the effort and expense, can anyone confirm that oil traps can go bad on an 05 XC90 2.5t? The YouTube videos and bulletin board posts I've seen all seem to relate to a much different style of oil trap, maybe for the 3.2 engine. They claim a diaphram goes bad, and Volvo recommends replacement at 100k miles. I have 133k now.

I'm looking at replacing p/n 1271988, which per Tasca and Volvopartswebstore is correct for my chassis number.

I haven't had the XC90 much more than a year, it was previously a one owner maintained and sold by the same dealer. But after getting the AWD system working again and monkeying around on a few different things like the timing belt, I'm ready for something else. It goes where ever we want it to go on trips, and my wife loves it.

Guess I'm just used to the simplicity of the 940.
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94 944 na 319,000 and still rolling - 05 XC90 2.5t AWD for the wife