Had a fluid leak in the power steering actuator on our pair of D3's and DPS legs. Couldn't find any parts listed as it seems to be another Volvo 'non-serviceable' part. New one is around US$400 at the cheaper stores. Like some other Volvo 'non-serviceable' parts the unit is quite obviously serviceable, it is just that they won't supply any parts to allow you to service it. Anyway, 2 x $4 new seals from the local seal shop, and around 1 hour of 'non-spe******t' labour later, it is as good as new. I have seen a few posts around of guys buying new actuators due to leaking seals, so this is just a heads up that the units are simple to service and the seals are available off the shelf for next to nothing.