I have a 07 RX400h. Had to change a n/s shock which was leaking. That meant changing both shocks. n/s was OK, but o/s creaked terribly. Garage said ball joints were worn so spent £780 changing them. Knocking started n/s just as described in this blog. Had the o/s shock replaced again and its fine now but still have rattle n/s front. Sunds like its somewhere behind the front dash and steering.
Only feint but enough to drive me mad.
Am going to cut my losses and part ex it for a Grand Cherokee Overlander! Same spec as the Lexus. American over-engineering. Basic but unbreakable.
