Porsche uk have no idea of the work done by OPCs, and the dealers don’t share data outside their group. The only data shared is the service record, and they don’t always do that reliably. So there literally no way to know, and they would have to prove that the non OPC repair/maintenance is a direct result of the warranty claim. I.e a claim on engine mounts can’t be blamed on new pads etc. In the real world it’s just not an issue. There is way too much disinformation about it, all you need do is read the paperwork.
I have read the paperwork, and I’ve also spoken to Porsche.
They explicitly mentioned that any work not carried out by a Porsche dealership might not be covered under warranty, if it’s found that the workmanship has caused the issue.
“
- Your Vehicle has previously been repaired, maintained or serviced in a way other than in accordance with the manufacturer's standards, as defined in the 'Guarantee and Maintenance' booklet and the owner's manual; or
“
You’re right in that they may not be able to tell, but if I’ve just had new brakes fitted, it would be very obvious. If I then had an issue with them, I wouldn’t put it past them to ask for proof they were done with Porsche, if not at that centre.
I also don’t agree with Porsche GB not knowing about the work done by OPCs - they were able to bring up data about my dads Cayenne the other day, when I was questioning them about some (non-warranty) work which had been done by an OPC.
They
might not care. But is it worth the headache to fight them over it? Not for me personally.