The last issue I have to tackle with the GS450h is a knocking sound coming from what seems the front wheels and mostly the right wheel. This is when driving over a ditch or uneven road like a cobblestone road.
This issue was present before the RSR down sus springs were installed (i.e. in factory setup) but has since gotten more obvious, probably due to the more rigid suspension. Initially I thought it may have been the brake pads, however when braking harder (beyond regenerative braking system) it remains present. So I think the brakes can be ruled out.
The suspension and wheelsetup have been checked by the Lexus dealer three times now and by a suspension specialist. None of them could find a thing wrong with it.
So I am wondering if any of you know what it may be?
Thanks in advance guys!
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