My vehicle has just been repaired by Benfields and is due to be returned today. They have repaired the corrosion on the roof above the windscreen which was the main problem, but other California users have discovered corrosion on the elevating roof by pulling down the rubber seal on the elevating roof. It is easy to pull back once the roof has been raised about a foot. It is worth walking around and checking all four sides. The seal is way to pull back and return to its original position.
The general rule of thumb is if you have corrosion on the front panel, you have it on the elevating roof.
I will keep you updated on how good the repair work is. Just to let you know, the loan vehicle they sent to me has many scrapes in the paintwork on both sides of the van (from previous users), the fitted satnav on the van does not work (requiring the disc to be inserted, there is a big gouge in the kitchen csabinetand the red rear lens for the hi-vis brake light had disappeared. Also the van did not come with the safe key or the water tank key, so severely limited any chance of going away![/QUOTE
Hope you got your van back? If so, are you happy with the repair?