I picked up my very first van last Friday. During the handover the guys could not get the 13 pin to connect to my car's socket. After many attempts a discussion was held between the 2 guys handing over and a green cap was called for. I watched them use it and they explained that the pins were out of alignment. Hey presto the cap was used and I was connected. I assumed this was a first time use issue because my van was brand new.
Connected and disconnected without issue on Friday and Saturday but on attempting to leave site yesterday, I couldn't connect. The guy in the next van who is also new to caravanning, told me he had experienced the same issue and now carried a green cap. However many times we tried, we still couldn't connect.
In the end I had to call out recovery. The technician hadn't come across the issue before and didn't know what a green cap was, however he used a little more force than I had dared to and the connection happened at his first attempt!!
I was a tad embarrassed but took it as a learning and ordered a green cap as soon as I got home last night.
Clearly the manufacturers have not sorted the problem although reading this very useful thread, perhaps it is something some of us will just have to live with.