ok, if this is a squeak or clunk when going over bumps and when cornering?
it sounds like the rear anti roll bar.
you can solve this buy jacking up the rear passenger side
remove the wheel
you will see the end plate (oval'ish)
remove the plastic plug from the centre of this plate using a torx bit.
then you will need a longish m8 bolt, you can use a manifold stud if you have one.
place a few washers that are bigger than the hole, onto the bolt, screw the bolt into the anti roll bar via the hole in the oval plate.
screw this in, this will then put your anti-roll bar towards the passenegr side and stop the squeak. you can also apply more grease into the hole in the oval plate, using a grease gun.
re-fit the plastic plug
re-fit wheel
lower car
enjoy a squeak free ride
i have done this a few times lol
if you look at a lowering guide, you will see the areas i mean in the pictures.
you are using the washers on the bolt, to release and opposite force onto to anti roll bar when you screw the bolt in
