I have just heard from MMC. It has acknowledged the wishbone failure and will cover the associated cost as a warranty repair. It seems that the MMC agent in Brittany requested a number of expensive parts to replace some that turned out on inspection by the factory to be undamaged, so I can understand Morgan's concern at a bill that was higher than it should have been. In future, for incidents of this type, MMC told me that it would want the vehicle to be recovered to the factory for inspection rather than being repaired locally.
MMC was appreciative that Rog G had noticed a wishbone support crack on older models and that upgrades could be fitted before anyone had an accident. They have been very good about this.
