They offered to replace the bonnet and respray the car - without quibling, but I decided that cleaning it down, Hammerite it and grease well would be a better solution as its under the bonnet and a respray could cause more problems than It solves.
Older cars were fine and don't have ythis problem but are well greased but when they checked a new one in teh showroom it was showing similar signs, looks like they have stopped greasing them before they leave the factory.
They are also changing all 4 alloys though, bit of bubbling on the inside edge.
Really excellent service.
