Well, apart from the Satnav not working as it needed 4 hour updates and the engine batteries not charging from alternator, everything was fine

Fortunately I can read road signs and have travelled France many times so not a problem. French fitters had to be reminded that I wanted the (allegedly duff) 6 volt leisure batteries

The journey began with the toll barrier going up and then down as I drove through so I left a bent toll barrier behind. Guess I will stay away from France for a while

Still none the wiser about the limp mode but the RV drives ok

Think I will make an appointment with the Wizard of Weymouth on my return in the Spring