Cayman 718 GPF Failure
- Thread starter Wrightrubber
- Start date
PHB1969
PCGB Member
This is a really poor situation - is there anything that Porsche Club GB can do in terms of representation to Porsche GB based on member feedback / experiences. Only seen the 2 instances mentioned in this thread - but are there any other examples across other models? You wouldnt feel that the something a few years old, that is supposed to be effective for 100k+ miles should fail at such an early stage.
For DPF I have seen some companies can run them at really high temps and "clean" them - I'm assuming a similar approach could be used on a GPF.
I would also hate for mine to go - particularly after seeing issues with DPF on Evoques and steering my wife well away from one!
For DPF I have seen some companies can run them at really high temps and "clean" them - I'm assuming a similar approach could be used on a GPF.
I would also hate for mine to go - particularly after seeing issues with DPF on Evoques and steering my wife well away from one!
PHB1969
PCGB Member
Also a thought…..is it worth starting a list, initially with the 2 known failures which contains info such as:
Username, model, year, engine, mileage, transmission, warnings etc
There will at least be a central record which may help with any future engagement with Porsche or legal representation.
Just wondering - having read some stuff on gpf, it says they should not block as they stay hotter than DPF - one thing with a pdk on a motorway they use cylinder deactivation…..I wonder if that reduces the exhaust temp and causes the gpf to reduce in temp, contributing to blocking. There was an interesting reference saying Porsche say their monitoring ensures they dont block (not word for word there)
Username, model, year, engine, mileage, transmission, warnings etc
There will at least be a central record which may help with any future engagement with Porsche or legal representation.
Just wondering - having read some stuff on gpf, it says they should not block as they stay hotter than DPF - one thing with a pdk on a motorway they use cylinder deactivation…..I wonder if that reduces the exhaust temp and causes the gpf to reduce in temp, contributing to blocking. There was an interesting reference saying Porsche say their monitoring ensures they dont block (not word for word there)
I always turn off the cylinder deactivation, it just makes the car sound awful. I didn't buy it for economy either, so not worried about achieving a higher mpg. Hopefully this may help protect the GPFPHB1969 said:
Hi Everyone,
Finally got my car back after 8 weeks!!
They have replaced the petrol particulate filter and it ended up costing me £1,119.50. It was initially split three ways between Porsche UK / Porsche Centre Nottingham and myself. I rejected this offer then Porsche Centre Bolton, (where I purchased the car from) stepped in and agreed to pay 50% of my share.
It has not been a pleasant experience and I genuinely believe Porsche know this is a problem and I feel more vehicles are going to suffer the same issue in the future. This should definitely be covered under warranty.
Regards, Mark
Finally got my car back after 8 weeks!!
They have replaced the petrol particulate filter and it ended up costing me £1,119.50. It was initially split three ways between Porsche UK / Porsche Centre Nottingham and myself. I rejected this offer then Porsche Centre Bolton, (where I purchased the car from) stepped in and agreed to pay 50% of my share.
It has not been a pleasant experience and I genuinely believe Porsche know this is a problem and I feel more vehicles are going to suffer the same issue in the future. This should definitely be covered under warranty.
Regards, Mark
]
Probably stating the obvious, but is there any recourse to Porsche HQ to complain? Their design of the product or its manufacture is the problem by the looks of it.
As an aside and apologies if this point has been covered already, but would this be covered under the original warranty for a new car?
Neil
As an aside and apologies if this point has been covered already, but would this be covered under the original warranty for a new car?
Neil
Hi Neil
Porsche UK informed me it is classed as a wear & tear component so NOT covered under warranty, which is an absolute joke!! So even for a new car they will wriggle out of it. Regards Mark
Porsche UK informed me it is classed as a wear & tear component so NOT covered under warranty, which is an absolute joke!! So even for a new car they will wriggle out of it. Regards Mark
Thanks Mark.
My reference to Porsche HQ was intended to be Germany , no harm in firing off a number of complaints to every email address you can find , from the Exec to their investor relations team.
Maybe highlight this? https://www.drive.com.au/caradvice/toyota-class-action-on-dpfs-everything-you-need-to-know/
My reference to Porsche HQ was intended to be Germany , no harm in firing off a number of complaints to every email address you can find , from the Exec to their investor relations team.
Maybe highlight this? https://www.drive.com.au/caradvice/toyota-class-action-on-dpfs-everything-you-need-to-know/
I am trying to collect information on these failures (3 so far) to see if it is really a big issue. In particular I am trying to understand whether the recommended fix is the result of a proper diagnosis, or just the practice of 'its easier to replace everything'. For example, I would have thought the emissions would be outside normal parameters, but I have no evidence that these have been checked. In fact one passed its MOT after the CEL had been cancelled, only to be told it needed a new GPF when the CEL later returned. It is a heck of a wake up call to be told that the CEL will need £5k+ to be turned off permanently, when the car is otherwise seemingly OK. It is this aspect that makes the issue so concerning for owners, particularly for 718's.
If anyone has any specific information, please pm me.
John
If anyone has any specific information, please pm me.
John
Useful to highlight this John. I can’t believe that the problem is unique to the mid-engine cars and wonder if there’s any benefit in asking the same question on the 992 forum since these cars will also have GPFs fitted?
Also, Neil has raised the issue of potential class-actions in this respect, but I suspect that Porsche would only take notice if the issue was raised in the highly litigious US market since it seems to be the only one of which they’re fearful.
Jeff
Also, Neil has raised the issue of potential class-actions in this respect, but I suspect that Porsche would only take notice if the issue was raised in the highly litigious US market since it seems to be the only one of which they’re fearful.
Jeff
AndrewCS
Active member
Does the club have any technical links in Porsche GB where this could be raised. If only to obtain clarity on operation, failure modes etc ....
https://www.krosfou.co.uk/blog/72_all-you-need-to-know-about-the-gpf-the-particulate-filter-for-petrol-cars.html
https://www.krosfou.co.uk/blog/72_all-you-need-to-know-about-the-gpf-the-particulate-filter-for-petrol-cars.html
I had 200 cell cats on my pre-OPF 3.8L and those failed within a year. They were HJS units used by Cargraphics. HJS provide a 2 year warranty from date of manufacture which is stamped on each unit. Mine were replaced FOC.
You would think Porsche have some warranty cover in their supply agreements so why not pass this on to customers? My damaged cat..
https://i.postimg.cc/J04fHPs4/Cat_Damage.jpg
You would think Porsche have some warranty cover in their supply agreements so why not pass this on to customers? My damaged cat..
https://i.postimg.cc/J04fHPs4/Cat_Damage.jpg
I am not clear yet if all the faults I have heard about are the 4 pot 718's. Which model is yours Mark?
Thanks for the comments Ralph. I was aware that the Cat could be damaged or caused to fail by a number of factors but that, in comparison, the particulate filter should be fairly robust. As they are in the same unit I imagine there could be some flex in understanding which part has failed.
For a class action to be successful Neil / Jeff you firstly need high numbers. Evidence so far is that there are only a few cars which have been affected.
I think there is a strong reaction because: a) it is a very high price to pay to get an engine light turned off; b) unlike, say, a faulty gearbox which clonks, there is no other evidence of something being wrong; c) the ongoing suspicion that it may be something less expensive, like a sensor, at fault and Porsche just replace the whole thing (just like PDK gearboxes, transmission cables, hydraulic engine mounts, PCCM etc. etc.); d) that something so significant in cost terms is excluded from warranty as a wear and tear item. It's just not right.
Thanks for the comments Ralph. I was aware that the Cat could be damaged or caused to fail by a number of factors but that, in comparison, the particulate filter should be fairly robust. As they are in the same unit I imagine there could be some flex in understanding which part has failed.
For a class action to be successful Neil / Jeff you firstly need high numbers. Evidence so far is that there are only a few cars which have been affected.
I think there is a strong reaction because: a) it is a very high price to pay to get an engine light turned off; b) unlike, say, a faulty gearbox which clonks, there is no other evidence of something being wrong; c) the ongoing suspicion that it may be something less expensive, like a sensor, at fault and Porsche just replace the whole thing (just like PDK gearboxes, transmission cables, hydraulic engine mounts, PCCM etc. etc.); d) that something so significant in cost terms is excluded from warranty as a wear and tear item. It's just not right.
Hi John, mine is a 2019MY 718 4 cylinder, 17,000 miles. Regards, Mark
PHB1969
PCGB Member
Motorhead said:
I don’t believe that in the US the GPF is a legal requirement, but agree worth checking all other forums as any petrol engined car post 2019 will be fitted with one.
I know the issues reported in Evoques with a DPF is due to the positioning of the DPF being quite far back from the engine, hence not getting up to decent operating temperature hence not working in the way intended. I believe petrol engines are less prone due to exhaust temps but clearly positioning of the GPF in the exhaust system may have something to do with it (surely 718 systems are relatively short?).
Hi Paul
It's a 2.0L PDK
Regards,
Mark
It's a 2.0L PDK
Regards,
Mark
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