The last few times I drove the gold Excel I noticed a knocking noise on uneven road surfaces. I tried the exhaust, driveshafts,. I tried spacing the damper further from the A arm so that they couldn't possibly make contact.
With the car on the ramps (supported by its wheels) I discovered that the knock was replicated if I merely applied a small amount of upward force to the subframe. I managed to eliminate the body/subframe mounting form the list of options and so remove the damper. On inspection I have discovered that the damper has a knock in it giving circa 5mm of longitudinal movement without dampening, almost as though low on oil I suspect something inside has come apart. As the dampers are probably more than 2 years old despite the low mileage I doubt I'll the the manufacturer to honour the warranty, and without finding purchase info I doubt they'll even agree to assist in the funding of the repair, so I'm going top purchase just one damper (which is something I'd normally not do) on the basis the other damper (driver's side) is very new and has had very little use so it should be a reasonable match to the new one.