My 9-5 Aero estate has developed a slight but audible creak/squeak over speed bumps (over which I am always ultra slow and careful, not only to annoy the 4x4 drivers behind) and occasional road dips etc. It doesn't sound like one side or the other; no clunking or anything (more) sinister; nothing when turning; it's handling normally (I am wondering if the suspension feels a bit harder, but that could well be in my head); all the pressures are checked and normal (36f/35r). It went through the MOT with no relevant advisories in late May.
It had a lot of suspension work in 2016 in response to MOT issues then: new rear rose bushes, front subframe bushes, front anti roll bar drop link etc. I'm pretty sure they would have been poly bushes.
A bit of googling made me wonder whether this might be dry bushes, perhaps exacerbated by the current weather. I'm fretting since we're supposed to be off to France at the weekend, a loaded continental trip not being ideal when you're hearing suspension noises ...
Any thoughts very welcome.