Common issues:
-Leaking tailgate drain hole at top of hatch or near wiper (mine was fixed when I got the car - someone will confirm)
-Water pump can fail causing leak in coolant system (my 14 plate is ok so far)
-Keyless entry gets through a key fob battery every 12months (easy to change)
-Front left wheel bearing can start to drone before the others. You have to replace the whole hub assy)
-Screen on infotainment system can go a bit haywire in cold weather (£650 to upgrade to later MIB2 unit). I can live with this
-start/stop can be erratic and is irritating (I coded mine off)
-inside of headlamps gets a crazing effect with age. Needs new headlamp to fix (expensive!). I’m tolerant of mine. You may be able to use as a negotiation point if the seller is unaware they all do it)
-If you are getting a PP (which I strongly advise)- the VAQ diff needs a fluid change every 3 years - often overlooked (not a problem but use it as a negotiation point)
-check for evidence of sunroof leaks like any sunroof car.
No real problems though- they are quick and easy to make very quick with a cheap remap.
Heated leather is lovely
Happy shopping!