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Cayman 718 GPF Failure

Hi 911Hillclimber

Without Prejudice

Thanks for that good news, I will be going to the Harewood Hill climb event in May, so it will be good to chat to anyone that's interest in our campaign.

Unfortunately we had 2 more owners with GPF issues contact us over the weekend.

The usual, your filters blocked, 9K to fix it, and no you can't see the GPF diagnostic report.

I would like to offer another thought process challenging our dealers insistence that these fiters are blocked 100%.

Please look at this screenshot information below.

Remember the Catalytic Convertor and GPF filter are one unit on these cars.

Funny we have not seen, or heard of any of these codes being present on any of our cars.

Hopefully Porsche Technical could give us an answer of why these Cat codes are not present

Why are Porsche Technical not looking at the lack of back pressure in these filters, they have all this data from the Vehicle Analysis Logs, they won't let us see.

It's been the same on all the cars I have dealt with.

The delay in repairing Paul's car confirms that they are looking in the wrong place, two modified GPF filters fitted within 800 miles.

Two of our vehicles have had complete engine strips looking for signs of oil consumption, and nothing was found to be wrong.

In their belief that the Ash content is real.

So why is it taking so long, and why are dealers still trying to charge our owners, when they know it's not the drivers fault, these cars are failing and they certainly do not need a new filter.

Regards
Dave
 

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Hi Scrounger,

Without prejudice

It didn't stay under the carpet long, end result was a fine around 4.1 billion.

That was concerning the control of gas emmisions, we are looking at the control of these petrol particulate emision systems on our cars, and why Porsche had to bring in a modified GPF filter within the first year of production in 2019.

Thankfully they admitted this on the 3rd March just gone.

An internal document was posted out written by Oliver Hayward to all the dealers with instructions on what to do when the DTC code P242F comes on, oil ash exceed.

We just need to hang on, we have proved 100% it's software, we just need more evidence to push this point.

We have plenty of patience, and this should now be covered by a recall.

The dealers surley can not continue with this blatant course of miss diagnosis, bearing in mind they have seen and are aware of this important and relevant document.

In future our owners when faced with this situation will make an appointment with the dealerships Service Manager, or General Manager, and discuss the existence of this information and its content.

The owner will then request that a case number is raised with Porsche Customer Care and the Technical Department, on the basis of this known, and proven case of a Manufacturing Emission Defect on our Cars.

Two years of our research and all the owners experiences, and data collected will support these cases.

Let's hope common sense will prevail.

Regards
David
 
Hi All,

Quick update on my car -

PAG have advised dealership to fit a new DME to my car late last week.
This arrived from Germany yesterday and is in this process of being fitted and tested.
At this point I am unaware if this is based on an original spec part or has been modified in any way.

Will update once I have results back to me by OPC.
 
The current situation for Paul and others affected is beyond farcical Dave, compounded by Porsche’s stonewalling on the issue when it’s obvious that something appears to be wrong with the software, requiring investigation at the very least.

Dan’s suggestion of a software update leads me to ask where the GPF monitoring software resides? If it’s in the DME itself that leads me to suppose that this could require a complete DME replacement, otherwise you’d assume that Stuttgart would have instructed the dealers to conduct a software update as a matter of course? Do you have any insight on the subject?

In Paul’s case it’s clear that replacing the GPF for the third time - and presumably with the latest-spec component - still hasn’t solved the problem, so it could be that replacing the DME will be the next step?🤔

Jeff
Jeff,
You did call this out several weeks ago …👏👏👏
 
Great news Dave. Like you saay, if consumers are aware of the TSB from Porsche DE then they can raise it when booking in with the OPC.

You you have a copy of the TSB or the reference number so it can be quoted? I'm a big believer in knowledge is power and some OPC are totally oblivious.

Dan
 
Hi Dan

Without Prejudice

This is the top of the front page of the letter.

This can be used as a reference to the current issue on our cars, that Porsche are fully aware of.

Sadly the freedom of information act does not apply to vehicle Manufacturers.

Hopefully someone in a Porsche Service Department can tell us why this information has not been communicated to their customers who have been struggling with this problem for the last 2 years and possibly longer.

I have said this before, and I will say this again, there is nothing out there that can compare to our 718 cars, the driving experience, the performance, the whole experience is un matched.

Let's put and end to this, and sort this software out.

Dave
 

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