Me again
Sorry for the spelling mistake,aloud (allowed)
Dave
Sorry for the spelling mistake,aloud (allowed)
Dave
Cayman 718 GPF Failure
- Thread starter Wrightrubber
- Start date
Hi Guys & Girls
Without prejudice
Another busy week gone, guiding our owners through these difficult times, when they have been told their GPF filter needs replacing.
Some interesting information from one of our owners that has completed over 10K with his original GPF filter, after he was told by his Dealer that it need changing because it was blocked.
He's monitored the mileage he covered every time his light came on using a diagnostic tool.
Generally the light is triggered when the Oil Ash % is between 90 and 100%.
He's found that the light can disappear and can come back on after 350 to 745 miles on average, but can go a lot longer.
If the ASH level was real, it can not be reduced by a static regeneration, because you can't set fire to Ash to turn it into Ash.
And remember the regeneration function is to reduce soot into Ash.
You may remember along time ago I mentioned that Porsche cars sold in America can come with an 8 year, 80,000 mile emission defect warranty.
This depends on what state in America the car is sold in.
If this was the case here, things would be a lot easier, could it be that the Americans needed a better guarantee on the emission control side of these cars, bearing in mind it was new technology fitting GPF filters in 2019, and time was clearly needed by all manufacturers to see how things would work going forward.
Enclose this link for your attention
www.numberanalytics.com
Just a thought
Dave
Without prejudice
Another busy week gone, guiding our owners through these difficult times, when they have been told their GPF filter needs replacing.
Some interesting information from one of our owners that has completed over 10K with his original GPF filter, after he was told by his Dealer that it need changing because it was blocked.
He's monitored the mileage he covered every time his light came on using a diagnostic tool.
Generally the light is triggered when the Oil Ash % is between 90 and 100%.
He's found that the light can disappear and can come back on after 350 to 745 miles on average, but can go a lot longer.
If the ASH level was real, it can not be reduced by a static regeneration, because you can't set fire to Ash to turn it into Ash.
And remember the regeneration function is to reduce soot into Ash.
You may remember along time ago I mentioned that Porsche cars sold in America can come with an 8 year, 80,000 mile emission defect warranty.
This depends on what state in America the car is sold in.
If this was the case here, things would be a lot easier, could it be that the Americans needed a better guarantee on the emission control side of these cars, bearing in mind it was new technology fitting GPF filters in 2019, and time was clearly needed by all manufacturers to see how things would work going forward.
Enclose this link for your attention
The Ultimate Emission Warranty Guide
Get an in-depth understanding of emission warranty, its regulations, and environmental impact. Learn how to navigate the complexities of emission warranty and its role in reducing emissions.
www.numberanalytics.com
Just a thought
Dave
Just a bit more information, see attached, this was my GPF reading, 4000 miles and 2 years on from the new filter being fitted (when this thread was started), as you can see ash was at 55.29%, soot 0.00% and differential pressure was 0.05 psi.
Currently at 69k views.
Regards
Mark
Currently at 69k views.
Regards
Mark
Attachments
Thanks Mark,
Without Prejudice,
Brilliant info, just shows us that 2 years in, and we are still trying to convince Porsche that they have got it wrong fitting these modified filters.
And how were these filters modified in 2019, what did they do to them, we know the same DTC P242F was present at the time.
What will it take to convince them that they need to look at the software.
We have more cars going into Dealers this week, with supposedly blocked filters, will let you know the outcomes.
And we are still waiting for an outcome on Paul's car after further work has been carried out to try and correct the oil ash % coming back time after time.
Fingers crossed
Dave
Without Prejudice,
Brilliant info, just shows us that 2 years in, and we are still trying to convince Porsche that they have got it wrong fitting these modified filters.
And how were these filters modified in 2019, what did they do to them, we know the same DTC P242F was present at the time.
What will it take to convince them that they need to look at the software.
We have more cars going into Dealers this week, with supposedly blocked filters, will let you know the outcomes.
And we are still waiting for an outcome on Paul's car after further work has been carried out to try and correct the oil ash % coming back time after time.
Fingers crossed
Dave
Hi Guys & Girls
Without prejudice
Well its been a busy week again,
We have unfortunately lost one of our Cayman 718 owners, that had a new modified filter fitted last year.
The car went in recently for a service and a GPF oil ash % check, it had 37.65%.
This was the final straw, the loss of confidence with the car proved to much to bear, so it was sold.
We also had another owner contact us with another P242F trouble code, so we are off again trying to help them get a resolution.
Another one of our cars is currently in at a Porsche Dealer, having further checks done, with the usual P242F code.
Whats very worrying at the moment is we seem to be getting lots of contacts from owners that have purchased a 718 outside the Dealer network with this fault.
We need some reassurance from Porsche GB, that any of these cars with this issue will be looked after.
This fault has been confirmed by Porsche Reading as a manufacturing defect, so they need to stand by these owners.
May I suggest that if you have this fault code on your car, you go to your local Porsche Dealer and ask them to contact Porsche GB on your behalf.
Will keep you informed of any progress
Some good news, we are currently on 70K views
Thank you for your interest and support
Dave
Without prejudice
Well its been a busy week again,
We have unfortunately lost one of our Cayman 718 owners, that had a new modified filter fitted last year.
The car went in recently for a service and a GPF oil ash % check, it had 37.65%.
This was the final straw, the loss of confidence with the car proved to much to bear, so it was sold.
We also had another owner contact us with another P242F trouble code, so we are off again trying to help them get a resolution.
Another one of our cars is currently in at a Porsche Dealer, having further checks done, with the usual P242F code.
Whats very worrying at the moment is we seem to be getting lots of contacts from owners that have purchased a 718 outside the Dealer network with this fault.
We need some reassurance from Porsche GB, that any of these cars with this issue will be looked after.
This fault has been confirmed by Porsche Reading as a manufacturing defect, so they need to stand by these owners.
May I suggest that if you have this fault code on your car, you go to your local Porsche Dealer and ask them to contact Porsche GB on your behalf.
Will keep you informed of any progress
Some good news, we are currently on 70K views
Thank you for your interest and support
Dave
Hi Guys & Girls
Without Prejudice
Unfortunately I have had some bad news this morning, we have been monitoring a 2023 Cayman 2.0 that recently went into a Porsche Dealer to have its Oil Ash % checked.
Its first check was carried in November 2024 at around 11K, the Ash load was around 15%.
A second check was carried out again in the same month, it was still around 15%.
The third test was carried out in June this year at around 14K, the Ash load had increased to 37%, the Dealer carried out a regeneration, and the Oil Ash % value was re set to 0.00%.
The owner took his car back today after covering only 250 miles, and the Oil Ash % value was 31%, the Dealer is sending this information on to Porsche Technical.
I had a call today from a motor trader who had seen a black Porsche Cayman 2.0 2019 for sale on an auction site that listed a fault on the GPF filter with a DTC code P242F.
He has looked on our forum, and needed some reassurance that these cars can be fixed.
What I did say was, hopefully we are trying to get Porsche to engage with us, to sort out this issue, and hopefully soon, they will have a resolution.
I have the registration number and chassis number of this car, and will be watching out for it.
If you are worried at all about your GPF filters oil ash reading, just call in to your local Porsche Dealer, or independent Garage and ask them to check it for you.
We now consider this simple check to be a service item, because of its importance and potential cost.
Lots more of our cars are going in for GPF tests, over the next few weeks, will keep you informed
Regards
David
Without Prejudice
Unfortunately I have had some bad news this morning, we have been monitoring a 2023 Cayman 2.0 that recently went into a Porsche Dealer to have its Oil Ash % checked.
Its first check was carried in November 2024 at around 11K, the Ash load was around 15%.
A second check was carried out again in the same month, it was still around 15%.
The third test was carried out in June this year at around 14K, the Ash load had increased to 37%, the Dealer carried out a regeneration, and the Oil Ash % value was re set to 0.00%.
The owner took his car back today after covering only 250 miles, and the Oil Ash % value was 31%, the Dealer is sending this information on to Porsche Technical.
I had a call today from a motor trader who had seen a black Porsche Cayman 2.0 2019 for sale on an auction site that listed a fault on the GPF filter with a DTC code P242F.
He has looked on our forum, and needed some reassurance that these cars can be fixed.
What I did say was, hopefully we are trying to get Porsche to engage with us, to sort out this issue, and hopefully soon, they will have a resolution.
I have the registration number and chassis number of this car, and will be watching out for it.
If you are worried at all about your GPF filters oil ash reading, just call in to your local Porsche Dealer, or independent Garage and ask them to check it for you.
We now consider this simple check to be a service item, because of its importance and potential cost.
Lots more of our cars are going in for GPF tests, over the next few weeks, will keep you informed
Regards
David
Hi Dave
It will be interesting to see what Porsche Technical say about the 2023MY car, as this is still under the manufacturers warranty.
Regards
Mark
It will be interesting to see what Porsche Technical say about the 2023MY car, as this is still under the manufacturers warranty.
Regards
Mark
Hi Mark,
Yes it will be interesting on how this will play out, we will be following this case with great interest.
Thanks for your post
Dave
Yes it will be interesting on how this will play out, we will be following this case with great interest.
Thanks for your post
Dave
Hi Guys & Girls
Without prejudice
Sorry its been a while since I Iast posted, we have been waiting for cars going back into Dealers for their oil ash % levels checked.
This week we have 2 cars going back in, after they had new filters fitted at the beginning of this year, under warranty.
Fingers crossed, we hope to find no Ash present, will let you know as we go along.
Thanks for all your views again, we are now at 72K
Regards
Dave
Without prejudice
Sorry its been a while since I Iast posted, we have been waiting for cars going back into Dealers for their oil ash % levels checked.
This week we have 2 cars going back in, after they had new filters fitted at the beginning of this year, under warranty.
Fingers crossed, we hope to find no Ash present, will let you know as we go along.
Thanks for all your views again, we are now at 72K
Regards
Dave
Hi Guys & Girls
Without prejudice
Following on from my last post, both cars have been in this week, these cars had new modified GPF filters fitted within the last 4 months, and the oil ash % levels have been rechecked.
We recorded 54% and 47%, this information as now been sent to Porsche Technical for their attention.
When we look back at another 4 previous vehicles that have had new modified filters fitted, we recorded the following oil ash % readings.
42, 48, 64, 55.
Hopefully Porsche Reading Technical will have all this information on all these cars, which clearly now confirms that replacing the original filter, without confirming the actual existence of Ash is pointless.
To date, we have had no dealer carry out our request for a GPF back pressure check to be carried out on any of our faulty vehicles.
Also we have evidence that if a successful regeneration reset on these cars is carried out, and the oil ash value shows 0.00 %, if its then checked again, within 500 miles it comes back, usually around 50% on average.
Hopefully now the Dealers will not be asking us to find the money to replace a faulty GPF, when the DTC code P242F presents itself, because it clearly is not causing this issue.
Its taken us, over 2 years to get to this position, but by not needing to replace such an expensive exhaust, it really takes the pressure off.
We just need to look somewhere else, and finally sort this out.
We will be waiting in anticipation from our Dealer Technical Requests regarding this situation.
Dave
Without prejudice
Following on from my last post, both cars have been in this week, these cars had new modified GPF filters fitted within the last 4 months, and the oil ash % levels have been rechecked.
We recorded 54% and 47%, this information as now been sent to Porsche Technical for their attention.
When we look back at another 4 previous vehicles that have had new modified filters fitted, we recorded the following oil ash % readings.
42, 48, 64, 55.
Hopefully Porsche Reading Technical will have all this information on all these cars, which clearly now confirms that replacing the original filter, without confirming the actual existence of Ash is pointless.
To date, we have had no dealer carry out our request for a GPF back pressure check to be carried out on any of our faulty vehicles.
Also we have evidence that if a successful regeneration reset on these cars is carried out, and the oil ash value shows 0.00 %, if its then checked again, within 500 miles it comes back, usually around 50% on average.
Hopefully now the Dealers will not be asking us to find the money to replace a faulty GPF, when the DTC code P242F presents itself, because it clearly is not causing this issue.
Its taken us, over 2 years to get to this position, but by not needing to replace such an expensive exhaust, it really takes the pressure off.
We just need to look somewhere else, and finally sort this out.
We will be waiting in anticipation from our Dealer Technical Requests regarding this situation.
Dave
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