Well after buying the car in April on a 2004 plate the last thing I expected was an MoT failure this month! I have read on here about the problem previously, broken NS rear coil spring so cost me £130 more than I had expected to get fixed. The upside is although its not covered under my warranty from the independent dealer I bought it off he has agreed to pay £50 of the cost so thats better than nothing I guess. In addition to this in my service advisory notes it was noted that there is a bubble in my rain sensor although it currently functions fine. Has anyone had experience of this? Is it likely to get worse and require replacement? Is that likely to entail extensive cost? Is there anything I can do to prevent deterioration?