523i Touring suspension is getting me down
I have a 99 523i Touring which I love to bits but it's suspension(rear) is gradually wearing my affection down. It's always seemed a tad firm over small bumps and potholes and seems to thud over small road ripples but I seem to be more aware of it now, not that it's worse, I just seem to be thinking about all the time, especially when I have passengers in the car, I'm thinking that they must be aware of this thudding as well.
I also noticed when trying to find a reason for this, that if I sit in the back of car with the tailgate open and bounce up and down, it obviously moves vertically, but as it's settling it moves to and fro as well.. is this normal. I've also noticed this to and fro movement when coming to a complete stop, if I apply the brakes quite firmly when the car stops, it momentarily moves back and forth, I've owned numerous cars including several BM's over the years and have never come across symptoms like these, and to be honest I didn't expect to have suspension like this on a car of this quality, so any help on these 2 issues would be greatly appreciated, this a great car but it's being dragged down by less than acceptable suspension.