fullymatted.
Back to search
Rennlist

AOS question

Add to repair workspace
Open repair workspace
Original source
9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHAOS question

Leading reported evidence

Replace 25,000 miles ago (4 years)

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 · Original poster

My AOS, factory Porsche, replaced 25,000 miles ago (4 years).

Original post Read captured discussion
AOS question
Read full discussion summary

Leading evidence: 'Replace 25,000 miles ago (4 years)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace 25,000 miles ago (4 years)' (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 · 9 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace air oil separator

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

I say definitely yes, replace the AOS.

Original post Read captured discussion
AOS question

Replace aos again as preventive maintenance

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 · Original poster

I think I should go ahead and replace AOS again as preventive maintenance?

Original post Read captured discussion
AOS question

Replace diaphragm

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

If the UAOS diaphragm fails while the engine is in the car, it will take under 5 minutes to replace the diaphragm on the UAOS compared to 4-6 hours or more replacing the factory AOS.

Original post Read captured discussion
AOS question

Replace factory aos

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

If the UAOS diaphragm fails while the engine is in the car, it will take under 5 minutes to replace the diaphragm on the UAOS compared to 4-6 hours or more replacing the factory AOS.

Original post Read captured discussion
AOS question
Frequently discussed actions (7)

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

Replace 25,000 miles ago (4 years)

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 · Original poster

My AOS, factory Porsche, replaced 25,000 miles ago (4 years).

Original post Read captured discussion
AOS question

Replace air oil separator

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

I say definitely yes, replace the AOS.

Original post Read captured discussion
AOS question

Replace aos again as preventive maintenance

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 · Original poster

I think I should go ahead and replace AOS again as preventive maintenance?

Original post Read captured discussion
AOS question

Replace diaphragm

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

If the UAOS diaphragm fails while the engine is in the car, it will take under 5 minutes to replace the diaphragm on the UAOS compared to 4-6 hours or more replacing the factory AOS.

Original post Read captured discussion
AOS question

Replace factory aos

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

If the UAOS diaphragm fails while the engine is in the car, it will take under 5 minutes to replace the diaphragm on the UAOS compared to 4-6 hours or more replacing the factory AOS.

Original post Read captured discussion
AOS question

Replace o-rings anyway

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

While in there I found my oil cooler leaking coolant slightly at the o-rings so you might want to check that, or even just replace the o-rings anyway for $5 and 30 minutes.

Original post Read captured discussion
AOS question

Run business

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

I'm pretty sure he would, as he's running a business...

Original post Read captured discussion
AOS question
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.

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

  • Rennlist: 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: 20261027T075545Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My AOS, factory Porsche, replaced 25,000 miles ago (4 years). Total, 81,000 on my car now. I am having gearbox removed for Clutch/Flywheel work. I think I should go ahead and replace AOS again as preventive maintenance? Thoughts? Thanks David

POST 2Original post

There's a gentleman here who has created an upgraded AOS, called the "UAOS." Should be easy to find on here

POST 3Original post

I say definitely yes, replace the AOS. Get it from Porsche. No aftermarket el cheapo AOS. You can retrofit the UAOS later.

POST 4Original post

Replace it with a UAOS now. Then if it ever fails, no need to spend hours trying to replace it (or retrofit UAOS) when the engine is installed. If the UAOS diaphragm fails while the engine is in the car, it will take under 5 minutes to replace the diaphragm on the UAOS compared to 4-6 hours or more replacing the factory AOS. Now is DEFINITELY the time to do it!

POST 5Original post

And if you order the UAOS before the end of the month, you get the upgraded Aluminum accumulator in addition to the sealed AOS, separate diaphragm unit and hoses/fittings - all for about $500... Sweet deal!

POST 6Original post

Quotes source post: 17156273

hmmmm. I am on record saying I wouldn�t put his 3D printed part on my engine. The machined aluminum one would be a valid option for factory part IMO. Hopefully he�d still sell me one....

POST 7Original post

Quotes source post: 17155846

I just replaced my original, 54k mile, 20 year old, fine working AOS while doing the Clutch/IMSB. With your miles and 4 years I'd still probably do it. While in there I found my oil cooler leaking coolant slightly at the o-rings so you might want to check that, or even just replace the o-rings anyway for $5 and 30 minutes.

POST 8Original post

Quotes source post: 17156513

Reach out and ask him! I'm pretty sure he would, as he's running a business...

POST 9 / ORIGINAL POSTEROriginal post

Thanks for the recommendation, I just sent PM

This is a source reference. Confirm exact model applicability in the original material.