Apologies, I didn't think it had been read so didn't want to waste anyone's time.
Outline is 2018 Sportline is in for engine and DPF replacement under (extended) warranty. Local dealer have been outstanding. Question related to responsibility for new cam belt (due just as the fault emerged)
Basically the warranty doesn't cover the cam belt but they will not charge labour (as it is part of the process anyway I guess) which is, in my book, more than fair enough as the cam belt and water pump were due anyway so I am having both done.