Anti-perforation warranty check

[everhopeful]

My Peugeot dealer is telling me that my 12 year anti-perforation warranty check is due on my 08 X250 Boxer.

The warranty info I have from Peugeot says it's only 6 years on a Boxer, and the dealer wants £35 to perform the check. There seems to be a lot of exclusions and it looks like only the "front bit" would be covered. As the front bit seems to be mainly fibreglass I'm a bit sceptical!

 

So, is it really 6 years? Is it only the front bit? Is this something I should be keeping up to date in case my van rusts through in the next couple of years, and what would they do on a check?

 

Thanks