I got a 2014 Porsche Panamera with 21" 911 Diamond cut 20 spoke alloys, i notice that water is now getting under the lacquer, i asked a local guy about refurbishing them and he thought they should still be under Porsche warranty even though the car is over 3 yrs old, will check on Monday but you guys think thats the case.
Another guy reckons if i do refurbish then i should not keep them as diamond cut, interested if anyone got any photos of any refurbished wheels

 

Sorry I can't help, but let us know how the conversation goes with the dealership. I'm sure they may have a set they can just swap out for you, hopefully.