I'm afraid porsche dont give their OPS,s any clear rules or set items when it comes to a warranty item ..
The OPC has to decide .. if Porsche then rejects it after a day or two its left for the OPC to either swallow the cost or then try and chase the customer ..
Because of this there tends to be a culture of reject anything that might be questionable .
I don't blame any OPC here .. 10 years at one so i should know , my own one shelled out a lot of money on failed warranty claims .
Back in the day i did a broken coil spring , my garage argued it was wear and tear .. on a Cayenne .. i argued the opposite as i considered it to be warranty .. i wasn't listened to and the opc charged the customer ..
He then went onto customer service to complain .. they upheld it and the customer was refunded ..
I have previously worked for Volvo .. in those days it was a sliding scale where by a percentage was paid on each item after the 2 year period dependant on age / mileage ..
A far better system in my opinion .. and engine / gearbox fault was still 100 % wattennty .. the scale applied to anything that was wear and tear .. oil seals etc and upto 10 years old .. we are talking 30 years ago mind you .
Im digressing .. sorry ..
Technically it should be covered under warranty ... technically it would take 30 seconds for a mechanic to diagnose .. actually 10 seconds to pull on the window glass and press the button !!
You have the option of complaining to customer services if they reject it though .
Indy is also cheaper at this job .. have to throw that in there
My 2 pennys anyways .