I appreciate the battery,thats just standard for a vehicle left so long. The bonnet was sat flush with the rest of the body work as it always has,this time though as it raised itself it has gone under the drivers wing/pillar and not over it as it usually does/did which has caused the damage to occur.From the under side of the bonnet I couldn't actually see this happening and it is the momentum of the bonnet going upwards which has caused the damage.

I purchased a Chevrolet Captiva in November last year from a Chevrolet dealership.It is still under the manufacturers 3 year warranty,expiring on 23rd September 2012 and its service plan is up to date.The vehicle has been garaged since March 31st 2012. My problem is that,on coming to start the vehicle 2 weeks ago I found the battery to be flat.I popped the bonnet from inside the vehicle,released the bonnet mechanism and began to raise the bonnet.The bonnet is on gas compressed struts and so raises its self from about half way up. In doing so damage has been caused to the bonnet and wing on the drivers side. I have taken the vehicle in to the Chevrolet dealer who have inspected the vehicle and concluded that it is not a warrantable fault as they can see nothing that would have caused this to occur and it must have been caused by an external occurrence,in their opinion something heavy has fallen on the bonnet.My argument being that their must have been a fault in order for this to happen in the first place. I have now been advised by the dealer that I need to get an engineers report from a 3rd party and report their findings back to the dealer before anything else will be done.I have tried various searches to find similar incidents but have been unsuccessful thus far,One of my concerns is that the warranty expires in 2 weeks time.Any help will be most appreciated as I am at a loss. Thank you.