[Auto Addict]

My "other" issue on my 2009 XC60 D5 AWD Manual is an intermittent PAS feeling heavy only at idle... I can not stress enough this is only evident at idle and not always either. For example... on morning cold start ups the PAS is fine, even at idle (most likely due to higher idle) to when it's fully warmed up. Otherwise the PAS is perfectly fine 95% of the time. There are no leaks or untoward noises from the PAS system neither.

Things I've done so far to cure this PAS issue are:

- Full PAS fluid flash / refill with 2 litres of fresh CHF11S (the old fluid was dark brown)
- Brand new "Genuine" Volvo PAS reservoir / fluid bottle (the filter inside looked a bit mucky)
- Brand new "Gates" Aux belt (even though my XC had the official recall few years ago)
- Brand new "OEM / DAYCO" Aux belt tensioner (even though my XC had the official recall few years ago)

I'm wondering if this is an early indicator of PAS pump failure and/or PAS pipes degrading internally.
Any further thought would be appreciated.

Thanks in advance.