are NF tyres really required to protect warranty?

[smoothound]

A bit of web-research says that in 2023 Porsche no longer mandated N rated tyres (perhaps in Europe only?) - & that they are only 'advisory'. But on forums like this, it seems everyone uses NF0,1,2 to avoid warranty claim weakness.

To what extent is it weakening any potential (extended) warranty claim to go with non N rated tyres? is it now 'no' risk post 2023?

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[chun]

I buy my tires from porsche as they are cheaper than online in Switzerland

And they are always NF; but they never said it has to do anything with warranty.

 

[Murph7355]

I'm running non-N rated tyres. Car's been serviced and had warranty and recall work done with no issues.

Would it be a headache if the drivetrain needed warranty work? It might, but I doubt it.

 

[pbmorrow]

As long as the tires are similar sizes you should be fine. I’ve never seen a warranty issue over tires unless someone had a truck/SUV and put WAY larger tires on it.

 

[DerekS]

No. Never once had a warranty claim challenged for using non-N-rated tires.

 

[CaptainJorg]

Only viable answer that will hold any water is:
What do the terms of your warranty say?

 

[prj]

For the new car warranty it probably won't make a difference, but to add Porsche Approved with the check (when it has run out), the car must have NF marked tyres fitted or Porsche will reject it.

 

[TaYcanAficionado]

I've seen this question across many posts; I don't have information about other parts of the world, but I can say with absolute certainty that in the European Union countries there is absolutely no problem with using non-NF0 rated tyres, or even servicing the car outside of the dealer network - the warranty stays intact. This has been the situation for the last almost 25 years, since the so-called European "block exemption regulation" has been in place. In simple words, this regulation states that a car manufacturer cannot void your vehicle's warranty simply because you chose to have routine servicing, maintenance, or non-warranty repairs done at an independent workshop instead of an official franchised main dealer. The only requirements for this to apply (and therefore, so as not to lose any warranty claims) are 1. follow the official schedule/time intervals, 2. use matching-quality components (you don't have to use parts inside the manufacturer's branded box, but the spare parts/fluids etc must be certified compatible and 3. keep meticulous records from the independent shop that you had your car serviced at. Again, the above applies 100% to all European Union countries (Germany, Austria, Italy, Spain etc) without limitation, as it's a European law; I do not know how the matter is handled in other countries outside of the European Union though.

 

[TaYcanAficionado]

and I've just googled it for U.S.A: have a look at the Magnuson-Moss Warranty Act of 1975; I believe it states pretty much the same thing as the European block exemption regulation.

 

[smoothound]

Thanks for the helpful replies folks... The Porsche EXTENDED warranty is an insurance policy and as such, I think the 'new car' warranty rules may not apply.. and the policy can have whatever clauses the seller wishes and then it's caveat emptor ... I think the EU warranty/servicing rules are targeted at 'new car' warranties ... but I may be wrong.

 

[r553]

The only issue I've heard of when using the non-N tires on our cars in the US is when you go to trade in your car at a Porsche dealer. They will reduce your trade in value by the cost of a replacement set of N rated tires. I've been getting my N rated tires at Discount Tire. They are closer to me than my dealer.

 

[GREATST]

For the new car warranty it probably won't make a difference, but to add Porsche Approved with the check (when it has run out), the car must have NF marked tyres fitted or Porsche will reject it.

True. No "N" designation, no Porsche Certification.

 

[SoccerMan94043]

I have Porsche's Tire and Wheel Insurance and I believe it also requires N rated tires.

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