I went out for a drive with Nick Froome in the W124 estate last week, a few days before a service booked with Olly. The manifestation of a misfiring problem in spades meant that that could be sorted, but it was intriguing to have someone so aware of what a W124 ride should be in the car. I have recently bought a plastic load tray from OneCarefulOwner, and the boot was pretty full with junk from my move. I had noticed a bit of creaking from the load tray in the boot as rough surfaces made the car a bit choppy, but really put that down to the tray itself. Nick speculated that a tiny hardness of ride and the continued presence of the creaking may be due to the SLS spheres starting to go, not much, but possibly that. As (with my usual powers of prediction I failed to spot the need for a lot of work on the brakes after failing the MOT) I normally budget to do one important thing, I asked Olly to change the spheres - not a nice job apparently. Coming back from Horndean and with some running around the rotten backstreets of Slough (where I am camping out at my sister's) it is absolutely clear that replacing the spheres has made the ride very much better (and it wasn't bad before), no longer any creaking or jiggling, the car is much more composed and it also sits up better at the rear. W124s really ride well, and now with a car with new wishbones and spheres, this just floats along. Hopefully with new spark plugs and lambda sensor the fuel economy which was getting poor, will pick up. Just a point to note for other W124 estate owners - when it starts getting a little less composed and a bit jiggly, it may be the spheres starting to go.