Why wait? As long as a service is by the log book by a reputable shop (approved by an auto club or member of state body such as VACC?) and so documented, it fulfils warranty requirements. Having gone that route the shop (and I presume most shops these days) subscribe to data services that enumerate warranty services and produce quite detailed invoices regarding same. My service invoices from my independent show everything required from the log book having been inspected or replaced, per log book requirements.
Any shop that does not have that ability might be best avoided during warranty for administrative reasons if no other. A hand written ‘20,000km service completed’ may not be as convincing proof as the explicit invoices I receive.
