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Planet-9

Rear main seal (RMS) leak on Cayman S

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

Discussion summary

YOUR RESEARCHRear main seal (RMS) leak on Cayman S

Leading reported evidence

Replace 22k miles) has been diagnosed

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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

22k miles) has been diagnosed with having a leaking RMS after a temp sensor was changed by my local

Original post Read captured discussion
Rear main seal (RMS) leak on Cayman S
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Leading evidence: 'Replace 22k miles) has been diagnosed' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace 22k miles) has been diagnosed' (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.

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1 matching discussions · 9 captured posts examined · 1 partial discussions

Compare 2 other evidence results

Replace main seal anyway

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

Some people might want to install a lightweight flywheel at the same time since they will have to remove the flywheel to replace the main seal anyway.

Original post Read captured discussion
Rear main seal (RMS) leak on Cayman S

Run backwards

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

It is not bad yet, but there is oil residue running backwards from flywheel holes in the trans.

Original post Read captured discussion
Rear main seal (RMS) leak on Cayman S
Frequently discussed actions (3)

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

Replace 22k miles) has been diagnosed

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

22k miles) has been diagnosed with having a leaking RMS after a temp sensor was changed by my local

Original post Read captured discussion
Rear main seal (RMS) leak on Cayman S

Replace main seal 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

Some people might want to install a lightweight flywheel at the same time since they will have to remove the flywheel to replace the main seal anyway.

Original post Read captured discussion
Rear main seal (RMS) leak on Cayman S

Run backwards

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

It is not bad yet, but there is oil residue running backwards from flywheel holes in the trans.

Original post Read captured discussion
Rear main seal (RMS) leak on Cayman S
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.

  • Planet-9: 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: 20261026T161109Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hey all, just wanted to flag up that my car ( 2007 Cayman S 22k miles) has been diagnosed with having a leaking RMS after a temp sensor was changed by my local Porsche Centre. My car is out of warranty by a few months, and although I have a full non- Porsche warranty, the service manager said that Porsche would cover the RMS replacement under 100% goodwill (yet to be confirmed). I know that there have not been many cases of leaking RMS on 987's, but it seems like the problem has not 100% gone from the 996/ 986 era. Question - is there anything else that I should get them to do while they're there? The obvious one is clutch, which I'm seriously considering changing at the same time (only have to pay for parts I'm told). Is there anything else that I should get done? Cheers.

POST 2Original post

Some people might want to install a lightweight flywheel at the same time since they will have to remove the flywheel to replace the main seal anyway. RMS leaks are pretty rare these days, sorry to hear you have one, but glad to hear Porsche is taking care of you.

POST 3Original post

How is it that your car (2007 model) is out of warranty? Assuming you purchased it in 2006 you should have at least another year to go. Unless they treat it differently across the pond.

POST 4Original post

Correct - the warranty in the UK is shorter than in the US.

POST 5Original post

2 years shorter, I believe. What a Croc! (pun intended).

POST 6Original post

Wait a sec, I thought Porsche warranties were international. How long are your warranties in the US?

POST 7Original post

I see what appears to be an RMS issue with my 2.7 cayman too, but I'm in denial of sorts at the moment. It is not bad yet, but there is oil residue running backwards from flywheel holes in the trans. As I've said before I'm still in denial, because its got plenty O'warranty left and its not worth the trouble or the stress of an R&R of the engine at this point. I've read enough to know for fact that the RMS issue will affect most of us sooner or later. The design of the engine will have weak points and this happens to be one.

POST 9Original post

I hate those 3 letters RMS, i had that on an 01 box S, sold the car cause of that. What are the costs/parts replaced? J

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