My Feb 2012 build just lost heat yesterday, at 21,000 miles. Waiting for dealer to call back.

Yes. A hood opening on the highway and killing a now sightless driver gets you in front of a Senate hearing committee. Loosing heat or whatever not. Besides, the cost of going to the dealer (miles, time, having to take time off, hassle) are borne by the owner, not PCNA, and, most importantly, the cost for fixing it is significantly deferred, thus improving PCNA's bottom line.

Assume fixing one valve costs $100 and that, on average, one valve fails per year. Fixing all seven at once would be an additional loss of $600, today. Compare this to the additional loss of $100 in each of year 2, 3 and 4 until the warranty expires. At a 10% cost of capital, these losses reduce further down to about $250... In other words, replacing valves one by one saves PCNA 60%, and that's not even counting the service income for replacing the remaining 3 after the warranty expires. If you add those in as $150 each ($100 plus PCNA markup) in years 5 through 7, PCNA comes out even slightly ahead since the time value of those monies (again at 10% cost of capital) would be $102 + $93 + $85 = $280.

So, if you could either take an additional $600 loss or come out slightly ahead, which would you choose?

Of course this doesn't factory in losses in reputation etc.

 

Is Porsche the new GM?

 

This nonsense seems to happen with all makes. Had a similar issue with a water coolant pump failure in my 2010 Audi S4. All B8 S4's in a certain production range were going to fail rendering the car un-driveable. Plastic expanding in cold weather. I continually asked the service advisor to replace and he said nothing they could do until failed. Ultimately mine failed and had to flat bed to dealer. Audi reimbursed me one lease payment. Still did not make up for the inconvenience and the driving around a ticking time bomb feeling. Seems like Porsche NA is making a similar mistake.
I guess we all just hold Porsche and the German build quality to a higher standard.

 

changed valve again.. 2 times in 2 years.. no heat.

 

Is anyone having or had problems with other valves ?

 

My '12.5 991 lost heat last Friday. Took it to newport beach Porsche. The part is back-ordered from Germany.

 

Just got my car back from the "No Heat" fix.
They ordered the COV and it arrived in in 2 days.
Apparently, they are still using 7PP 906 283 C.
Heater works now and the "Fault cooling system Visit repair shop" message is gone.

 

My new-to-me 991 just spent a couple weeks in the shop after getting a cooling system fault. The first changeover valve fixed the problem for about 24 hours, and then it came back. The techs dug in deeper and discovered a problem with the wiring harness, which apparently was confirmed by Porsche and replaced with an updated harness. I've only had it back a few days, but so far so good.

 

Well my new changeover valve in the exhaust lasted four months.

This time i got the "cooling system fault" error, but I knew it before the car did since the noise changed.

Anyone seen a valve in a newer iteration than the part number ending in "F"?

This saga is pretty sad.

 

I had the heater quit working Fall of 2014 and also the PSE failure (was loud all the time) in late Fall of 2014 (had it fixed in Feb 2015), both COV problems.

My COVs were replaced with an earlier campaign in Sept '13 but still failed later (heat and PSE).

2012.5 991 C2S.

 

That's pitiful that Porsche hasn't fixed this problem. I have a 2015 GTS and I was hoping that they were using a new part by now. Maybe they are, but sure sounds like some owners have had the valves replaced recently, then had them fail again.

 

I just purchased a 2013 991 S. Drove it 60 miles and now have the faulty coolant take in for service warning. This is my first Porsche and really did not anticipate having to research this kind of issue.

First post on the boards and hope to have better news for my second post.

What is the purpose of having a car CPO when they allow stuff like this to pass?

 

They don't care to resolve the issue unless someone gets hurt.
As it stands, it's merely an "inconvenience" and they'll keep replacing them till the cows come home.

"Pitiful", "sad" and "saga" are just some of the words used in this thread to describe the situation. In reality there is no situation. It is simply how Porsche is choosing to manage (rather than address) the problem.

Ultimately the joke is on us..

 

Well, considering it is costing them warranty claim $$$ to replace the faulty valves, you would think that Porsche would be putting the heat on the part supplier to fix the problem, or maybe Porsche is sending the part supplier the bills. In that case, you would think that the part supplier would fix the part before it bankrupts them.

 

Not all failing valves generate an error.
Customers are bringing their cars in drips and drabs once they discover the lack of heat or a non-functioning PSE, with the occasional smattering of a system cooling fault.

Most of us don't even realize that they've failed, so overall a very "manageable" situation.

This has been going on since 2012!!