Zep,
I think we (I am) fairly happy that the route cause of the issue is the bush deteriorating some way and that is putting undue pressure on the wishbone as the DVSA and Maserati have said.
The issue now is the DVSA are happy with Maserati writing to people letting them know this and to get the bushes checked. My issue with that is that the deterioration and damage seems to happen quite swiftly so just because you've been checked OK today, doesn't mean you'll be OK before the next service.. but the DVSA think that's fine!
Mark
I appreciate that Mark, I was making the point that he was offering a fairly strong hint as to the failure mode which might well be useful going forward.
As you say, we appear to be stuck in a feedback loop, we aren't happy with Maserati's approach to the issue, which could be both more detailed and more sympathetic, but it isn't and unless we can identify through our own means a material defect, that seems to be where this ends. DVSA appear to be sympathetic but are prevented from acting by the engineering conclusions, which would must have some merit as they clearly have some experience in these matters from the email you published. To assume incompetence (as opposed to heartlessness) on the part of Maserati and the DVSA seems like a bit of a leap to me.
What we can be fairly sure of is that there will be some new guidance for testers related to this issue, which is likely to further reduce the incidence of failure beyond what you have already achieved through this thread.
The lesson I am choosing to take is that it is advisable to change the bushes sooner rather than later. Don't get to the point where wear is really obvious and don't wait for an MOT tester or service inspection to find it. This is just my opinion of course.
