Cayman 718 GPF Failure

[Cyclemotor1958]

Morning Jeff,
I have only had conversations with John, regarding our dealings with owners, Dealers, and customer care.
Would really like to speak to somebody at Porsche Technical, we need some answers.
Actually spoke to John last night who is pushing are case to Porsche Cars
Dave

 

[Cyclemotor1958]

Hi Michael,
Thanks for the info, I think if you are concerned about your car, the only thing you can do is speak to Porsche Leeds and get them to check your GPF oil / ash loading.
They can show you the results on their diagnostic screen, you could take a photo and then send it to me.
Iam very sorry that our posts are causing people to worry about their cars, but at the moment we are very busy trying to sort out 2019 car issues.
Yesterday I spent alot of time drafting a letter to Porsche Technical trying to get them to reverse a decision not to cover the cost of replacing a GPF filter they say is faulty.
The main part of my letter was showing data from GPF reports showing incorrect temperature and % readings, without this information we would have no chance to challenge them.
Dave

 

[michaeldowgill]

Thanks Dave. I traded in my 2019 Cayman T 2 litre and I was getting the the same acoustic sounds with no messages on the Multi- Function display. I just wondered if anybody else is getting this warning but no messages. I now carry out the procedure to clean the GPF as described in the manual when I get these warning tones.
Michael.

 

[Cyclemotor1958]

Hi Michael,
These acoustic sounds have been mentioned before, you could ask the service department if you take in your car for the GPF check.
If you have been doing regeneration runs yourself the oil / ash loading should be okay.
If you would like me to send you a GPF report please give me a ring on 07769 590119
Dave

 

[Motorhead]

Michael,

Like Dave I remember the acoustic sounds being mentioned on here, but looking back I note that it was yourself who asked the question back in August [post #202] . However, I don’t recall anyone else posting on this occurrence, although Dave may have come across it with the owners’ he’s assisted.

Jeff

 

[Paul-718gts]

Hi Ian

Without Prejudice

The hand book is well written explaining what happens when a high soot value needs driver intervention.

It's a shame the car doesn’t put on the light, or a message. In all the cars I have dealt with, in the last year no light or message has been seen.

We have unfortunately at the moment a major emission function error on the cars we are dealing with.

We are expecting the soot warning light to work, Porsche technical are insisting it should work, but sadly it doesn't.

But when we look at the soot calculated and measured values, there never seems to be much in, most of the time you only see a reading in the measured section and thats usually 0.00 %.

The only sensor that can trigger a regeneration is the differential pressure sensor and that always shows a very low differential pressure readings.The regeneration will only happen with high soot levels and high readings.

Yet we are being told the exhaust is blocked. A blocked exhaust would show alot higher differential pressure readings.

The only light that warns the driver of an issue is the engine warning light.
This comes on with a permitted to drive message, and a visit to the dealer, if the fault code is P242F , then a potential bill of £7,500.00 is discussed.

We then have to fight with the dealers and Porsche technical to get them to cover this cost, on the grounds this is a manufacturing defect, which can take us months.
This trouble code is nothing to do with soot, its the oil ash/loading thats reached 100%, and when it comes on its to late to save the GPF.

Which is absolutely ridiculous bearing in mind the low mileages covered on these cars.

We have asked all the Porsche service departments who have dealt with our cars to show us this light working, still waiting, its been a year now.

Sorry for going on but all this information is crucial to our argument that something is sadly wrong with our cars.

We just need an acknowledgement from Porsche Cars that they are looking into this problem on their cars, and we don't need to worry.

Dave

Club Representatives -
As Dave’s last paragraph suggests a statement from the club updating its members on the progress to date on this matter with Porsche GB is all I think it’s members are looking for at this point.
It’s been nearly 3 weeks since there was a mention of the committee engaging Porsche and it’s been radio silence since..