[Perfectlap]

maybe thats the full number of an OBD II code. Or it could be that Porsche Lap top diagnosis code thing.
Do a google search for OBD II codes and see if that serial number on the service records matches one from the website. I was going to print those out and keep them in my rear compartment cubby with my Actron OBD II code reader so I could quickly diagnose a check engine light while on the road.