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Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK

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Original source
18 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHReplacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK

Leading reported evidence

Use 718s, the cars affected were post september 2018

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I seem to recall when I was looking at used 718s, the cars affected were post September 2018 to late 2021 (ish).

Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK
Frequently discussed work

Check definitively

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

But you'd need to trawl through the Porsche GB thread to check definitively.

Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK
Read full discussion summary

Leading evidence: 'Use 718s, the cars affected were post september 2018' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check definitively' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 18 captured posts examined · 1 partial discussions

Compare 3 other evidence results

Check definitively

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

But you'd need to trawl through the Porsche GB thread to check definitively.

Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK

Replace there is this alternate route

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

And if the OPF is genuinely the issue and needs replacing, there is this alternate route.

Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK

Use only (with a nod and a wink and smirk

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

RPM are indeed offering them, but if you watch that video, Greig says the deletes are for track use only (with a nod and a wink and smirk on his face)

Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK
Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check definitively

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

But you'd need to trawl through the Porsche GB thread to check definitively.

Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK

Replace there is this alternate route

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

And if the OPF is genuinely the issue and needs replacing, there is this alternate route.

Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK

Use 718s, the cars affected were post september 2018

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I seem to recall when I was looking at used 718s, the cars affected were post September 2018 to late 2021 (ish).

Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK

Use only (with a nod and a wink and smirk

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

RPM are indeed offering them, but if you watch that video, Greig says the deletes are for track use only (with a nod and a wink and smirk on his face)

Replacement OPF filter - Page 1 - Boxster/Cayman - PistonHeads UK
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

18 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • PistonHeads: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T192637Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all I had a engine light in amber come up on the dash on my 2019 porsche cayman and the car was under warranty so I booked it in, the warranty had expired by the time there was a availability with Porsche but they said they would honour it. I recieved this in the health report EML on dash, created Val and found fault codes for ash level too high in the OPF filter. Requires new filter, NOT WARRANTY Any ideas on how much would this cost? As the warranty is now over is it worth going to a Porsche specialist instead (Indy is the term from my understanding?? Thanks

POST 2Original post

They are not cheap and I not sure the outcome as it 27 pages long. https://www.porscheclubgb.com/forum/threads/cayman...

POST 3Original post

As mentioned, check the PCGB forums where there has been a lot of research into this, current speculation seems to be that this is a software, rather than hardware issue. As you can imagine, a lot of annoyed people that have paid thousands for an OPF replacement when it may not have been needed

POST 4 / ORIGINAL POSTEROriginal post

Thanks both, will look in to this

POST 5Original post

And if the OPF is genuinely the issue and needs replacing, there is this alternate route. https://rpmtechnik.co.uk/product/rpm-718-gt4-gts-o...

POST 6Original post

What is the MOT position regarding a deleted OPF filter ?

POST 7Original post

ChrisW. said: What is the MOT position regarding a deleted OPF filter ? Not sure, but my guess would be that the MOT would be OK because the main CATs are still there. Plus would be surprised of RPM were offering this if the cars would all fail MOTs afterwards. I believe that they recently did a youtube vid on a GT4 which they put this on.

POST 8Original post

Gt4user said: They are not cheap and I not sure the outcome as it 27 pages long. https://www.porscheclubgb.com/forum/threads/cayman... Just had a read. Porsche still dragging their feet and refusing warranty claims it seems. Lots of drivers unaware of the problems (no lights on the dash) until the GPF is completely blocked, result is a new GPF and CAT (single part) at a cost of £7500, ouch. Seems that a new cat / GPF doesnt fix the problem either, with reports of cars getting blocked again within a few thousand miles

POST 9Original post

I'm so pleased that I went for an older 991.2 RS without the GPF .... it was just a guess ... so I was lucky.

POST 10Original post

I would have thought deleting the GPF as it is legislation from September 2018 and would be illegal for road use and would invalidate any insurance or warranty claim?

POST 11Original post

Crudeoink said: Just had a read. Porsche still dragging their feet and refusing warranty claims it seems. Lots of drivers unaware of the problems (no lights on the dash) until the GPF is completely blocked, result is a new GPF and CAT (single part) at a cost of £7500, ouch. Seems that a new cat / GPF doesnt fix the problem either, with reports of cars getting blocked again within a few thousand miles Reminds me of what was happening with Diesel cars fitted with particule filter’s throwing up codes where driven short journeys, perhaps an Italian tune up is required?

POST 12Original post

GT4P said: Crudeoink said: Just had a read. Porsche still dragging their feet and refusing warranty claims it seems. Lots of drivers unaware of the problems (no lights on the dash) until the GPF is completely blocked, result is a new GPF and CAT (single part) at a cost of £7500, ouch. Seems that a new cat / GPF doesnt fix the problem either, with reports of cars getting blocked again within a few thousand miles Reminds me of what was happening with Diesel cars fitted with particule filter’s throwing up codes where driven short journeys, perhaps an Italian tune up is required? It doesn't seem to make any difference, there is a guy in the thread doing a lot of the research (Cyclemotor1958) he had a car in with a 100% Oil Ash Load, which causes the fault and Porsche say the exhaust is blocked and must be replace. He actually measure the pressure across the GPD on a car and got a delta pressure of 0.02 PSI... essentially nothing. The exhaust is not blocked. The oil ash load is a calculated value though, not measured, so there is an algorithm somewhere that doesn't work as it should.

POST 13Original post

Megaflow said: GT4P said: Crudeoink said: Just had a read. Porsche still dragging their feet and refusing warranty claims it seems. Lots of drivers unaware of the problems (no lights on the dash) until the GPF is completely blocked, result is a new GPF and CAT (single part) at a cost of £7500, ouch. Seems that a new cat / GPF doesnt fix the problem either, with reports of cars getting blocked again within a few thousand miles Reminds me of what was happening with Diesel cars fitted with particule filter’s throwing up codes where driven short journeys, perhaps an Italian tune up is required? It doesn't seem to make any difference, there is a guy in the thread doing a lot of the research (Cyclemotor1958) he had a car in with a 100% Oil Ash Load, which causes the fault and Porsche say the exhaust is blocked and must be replace. He actually measure the pressure across the GPD on a car and got a delta pressure of 0.02 PSI... essentially nothing. The exhaust is not blocked. The oil ash load is a calculated value though, not measured, so there is an algorithm somewhere that doesn't work as it should. What worse is there are quite a few people in the thread that stumped up £1000's to replace a part that didnt need to be replaced !

POST 14Original post

It's a software issue that Porsche are burying their head in the sand about. Unfortunately Cyclemotor will not go to the motoring press and is hoping that Porsche GB will sort it behind closed doors. Unfortunately (and through experience with another brand) manufacturers will either drag their feet or not respond however, the moment their product is put into disrepute and gets a bad light in the motoring press then they jump on it straight away. All it takes is for 1 person to speak to the likes of Auto Express, What Car etc and give them the link to the PCGB forum page that discusses it then Porsche DE will sit up and take notice.

POST 15Original post

AAAndy said: ChrisW. said: What is the MOT position regarding a deleted OPF filter ? Not sure, but my guess would be that the MOT would be OK because the main CATs are still there. Plus would be surprised of RPM were offering this if the cars would all fail MOTs afterwards. I believe that they recently did a youtube vid on a GT4 which they put this on. https://cobrasport.com/blogs/news/exhaust-talk-3-gpf-opf-ppf-exhaust-filters-explained-improve-sound-performance?srsltid=AfmBOooSHsqTGiobT4jZl4I5N7Xyl9LzRb4IxPswtac5uWO5u1ac4Qi1 RPM are indeed offering them, but if you watch that video, Greig says the deletes are for track use only (with a nod and a wink and smirk on his face) So you’ll be invalidating any Porsche warranty and most likely fail an MOT too, by fitting them. A quick call or trip to your local MOT station will establish whether removal of the PPF means a fail, though I suspect it may well.

POST 16Original post

The issue is only with 2019 718s? So 2018 and 2020 are ok?

POST 17Original post

Mazinbrum said: The issue is only with 2019 718s? So 2018 and 2020 are ok? No, I don't think that's correct. I seem to recall when I was looking at used 718s, the cars affected were post September 2018 to late 2021 (ish). But you'd need to trawl through the Porsche GB thread to check definitively. In the end I decided to buy a new 718 (as I couldn't find the spec I wanted) so stopped researching it.

POST 18Original post

What’s the options for removing the opf, smash the innards out and then refitting so it looks completely standard externally. Then coding out the error message. That seems like a logical solution. So long as you are prepared to lose the warranty IF they found out.

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