Thanks for your response, Steve - that's a good point. On 6 November, I had the first of 2 services as part of the service plan (the washers failed sometime after 30 November when I returned from abroad). The invoice paperwork's final sheet shows they ran an "Audi Health Check". On that, it shows green (OK) for "Internal" and "External". On the former, it says they checked wipers and washers and clearly didn't see an issue. However, my warranty says there is a 30 day window where they won't fix anything until that time has lapsed. So, seems like they can't argue a case unless the car has somehow logged this as a fault prior to that 30 day exclusion window expiring. Key dates:
18 Oct: plan and 30 day exclusion window starts
6 Nov: service, including Health Check
30 Nov: washers not working
So, Audi might argue (especially if the car has logged a fault) that it failed between 6 - 18 November (roughly end of 30 day window). I guess I should just book it in and say they didn't pick it up on 6 November, so honour the warranty.
Thanks!
A.