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Apple car play…

It is weird. When the CarPlay is kicked off the system the screen goes blank, all driver assist systems are turned off, including cruise control. After a few seconds the screen comes back on and if I use the talk button to ask a question it talks to me in German. It is quite funny in a way. But all that was before I connected via cable. If it happens again with the cable connected I guess it is a warranty fix.
From what the lead tech at the Sheffield van centre told me, your symptoms are a known issue with VW. Your local dealer should be able to assist.