After several in-car warnings about it needing charging I expected a similar report during my service just before end of warranty, nothing was mentioned. About 2 weeks later I had an experience when it took a few goes to start, took it to the garage, similar quote for a new battery. I argued the toss , was offered some money towards it, rang VW uk and actually got it FOC, the customer advisor was quite surprised with that result. I guess I was lucky it was literally only a few weeks out of warranty.