First, I'm very surprised that an EV needs all new discs and pads after 3 years. Surely brake regen takes care of most slowing down and therefore extend the life of discs and pads?.

But I think this will boil down to what is a normal time for a set of discs/pads to last. If they shouldn't need replaced so soon, VWFS could say it is down to your driving that they need replaced. But if this is an average lifespan for them, you may have a case.

Maybe low mileage (long periods of sitting idle outside) leads to the discs getting corroded and warped, which might wear the pad as a result. That has happened on my Mazda3 to a degree, and it's only done 73,000 miles in 17 years. I recall Hyundai i10s / Kia Picantos having brake issues like sticking (mine does too when used sparingly).

Not sure whether EVs' addition of regen brakingthe normal discs and pads are used even less and can be more susceptible to this issue or not. Maybe it depends on the design of the system and components. I mean, some ICE cars seem to have little problems with low use whilst others have quite a lot.

How do you know it needs new discs and pads, have VW confirmed that, if so presumably at one of their workshops, why couldn't you have just left the vehicle with them as it was due back.

Are you sure the agreement is up now (and not 12 months hence), seems odd not collecting such a valuable vehicle.

Presumably you also stopped paying for it 2 months ago as well? If so then you shouldn't have been driving it as its no longer yours, not that it ever was but you get the point?

I suspect the collection has got lost in the system, as for the worn brakes, no matter why there worn I can't see why you wouldn't be responsible for there replacement....all my personal opinion of course...

Whoever is responsible for paying for the job or whether or not they need replacement, repair of front and rear brake pads and discs is a great money spinner for the dealer . A good tech can probably do the whole job in an hour or so , you’ll likely be charged about 3 . As they are fast moving parts , the dealer will be on maximum discount.

Makes one wonder if it would be worth slipping a set of good quality pattern discs and pads on oneself before a mighty bill arrives from the dealer if they really are worn out.