It's been diagnosed by Honda as needing a rear offside caliper (£400!!) and both rear discs (which are "knackered"). £650 with fitting and VAT.
I can't help but think they're bulltishing me though, there's apparently some history of sticking caliper from the previous garage, who "unstuck" it and changed the pads, when they should have changed the whole lot. The discs have that corrosion stuff around the edge (which I didn't think was too bad, but what do I know) and that's causing the donk donk noise on right hand bends, as the weight changes - sounds reasonable, I'm not too bothered about having to change the discs as it probably should have been done with the pads.
It's just this caliper thing I can't get, it definitely sounds like a creaky spring, not a pad rubbing on some corroded disc - plus I just did a 30 min drive on dual carriageway (with noise before and after) and both rear discs were stone cold, OK so I exaggerate; they were too hot to touch for more than a few seconds, but the hubs weren't radiating like I've had before with a sticking brake.
So what do you think? I'm going for a second opinion at my local independent soon.
This rear creak noise, it happens turning or not, and from the slightest hint of braking to quite hard - beyond quite hard it goes away. Usually one creak per rev of the wheel, but sometimes a second creak each rev, as if it's rebounding in some way. The noise itself is a creak, imagine a creaky gate, if you push it REALLY slowly you can hear as the hinge 'snaps' to each new friction point, putting all these 'snaps' together you get the creak - that's EXACTLY like the noise I'm getting - so how can that be a sticking caliper?