Hi all, I have a Cayenne 2005 4.5S. Been a great car for many years. Recently I noticed a wobble at high speed and easing off from high speed until about 50mph, then smooth again. Not wheel balance (got that done), not disks (replaced all four).
Here's the odd and important confusing thing.
If I feather the brakes, even slightly, it goes away and smooth. Take foot off brakes and wobble comes back, almost like going over cats eyes or road paint... Like a pulsing bumping. Touch brakes, goes away.
I replaced all front bushes, top and bottom wishbones. Bearings fine as is drive shaft mid bearing.
Two garages seen and none can work out why braking removes wobble / bumping. Please help. Spent a fortune and it's still doing it!
Here's the odd and important confusing thing.
If I feather the brakes, even slightly, it goes away and smooth. Take foot off brakes and wobble comes back, almost like going over cats eyes or road paint... Like a pulsing bumping. Touch brakes, goes away.
I replaced all front bushes, top and bottom wishbones. Bearings fine as is drive shaft mid bearing.
Two garages seen and none can work out why braking removes wobble / bumping. Please help. Spent a fortune and it's still doing it!