It is clear that someone has little understanding of legislation. The OP should not have any issues claiming for any defects as they should be treated the same as a warranty claim. After all the warranty is essential between the dealership supplying the caravan and the manufacturer and not between the consumer and the manufacturer.
I do not remember anyone suggesting that a warrantee was between the consumer and manufacturer. Cannot see where you picked that up from.
In the OP’ s case. He will have a short term warrantee with the seller. I do not think that has been in question.
Then there is the remaining part of the manufacturers warrantee. And finding a dealer who is willing to take this on should a problem arise. This is nice and clear with the original supplying dealer. But far from clear with used vans and even less clear if the dealer is not franchised.
I purchased a 1 year old Bailey privately. So no warrantee. Before I paid my money. I spoke to the supplying dealer who said they were prepared to deal with me as though I was the new buyer.
This is the sort of certainty that the OP needs.
I feel that most people DO have difficulty getting warrantee work done. Even with new vans. I certainly have had arguments in order to get legitimate claims made. I never needed to implement the CRA, but like you, would have done if it was needed.
What comes clear to me from this thread, is what we are hearing from the OP’s possible dealer, their nearby franchised dealer, and Coachman. It is vague and non committal. I suspect they do this deliberately.
Just how useful is it that the warrantee can be transferred but is of no use if no one will take on the work.
John