Agreed. You may have to pay to play
Also your defiantly right about the 'depends on dealer' in fact i travel 20+miles to the dealer i currently use as the service they provide is so much better than the 1 less that 4 miles away. The one 4 Miles away ALWAYS quote the £106 diagnosis fee regardless of issue... whereas the other one will let me know before hand whether its fully covered or not. Communication is also far better.