9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHRMS Leak & Storage?
Reported or suspected cause
described
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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 report identifying a cause
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.
Reported cause
As the problem was described to me, it does NOT have anything to do with the material of the seal deteriorating.
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
He thinks it has something to do with the ability of the seal to expand and contract properly, and he says that once oil gets through the seal, then it is hard to get the leak to stop without replacing the seal.
Leading evidence: 'described' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'described' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace seal' (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.
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
He tells me that they experience more problems with cars that have been stored or with cars that are used for short trips.
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
He thinks it has something to do with the ability of the seal to expand and contract properly, and he says that once oil gets through the seal, then it is hard to get the leak to stop without replacing the seal.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Replace seal
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
He thinks it has something to do with the ability of the seal to expand and contract properly, and he says that once oil gets through the seal, then it is hard to get the leak to stop without replacing the seal.
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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Do you think there is any correlation with RMS Leak and P-car storage? do you think the Pcars that are stored over the winter are more prone to RMS leak, then the Pcars that are driven daily (year round)? Thanks!
No. There is no evidence to what is the cause and/or what increases the chance of having an RMS leak or decreases the chance if anything. No one, except Porsche, even knows what % of the cars have and/or are effected. Drive, store, polish or whatever and enjoy your car.
I have been told yes by a Porsche service representative. He tells me that they experience more problems with cars that have been stored or with cars that are used for short trips. He thinks it has something to do with the ability of the seal to expand and contract properly, and he says that once oil gets through the seal, then it is hard to get the leak to stop without replacing the seal. No personal knowledge, just passing along what I have been told.
I can't imagine a neopreme type seal that the RMS is going bad over the winter. Mine went right away in 99. I have stored it now for 5 winters for three months each and it hasn't leaked since it was repaired. It's just not the kind of material that will dry out and fail.
As the problem was described to me, it does NOT have anything to do with the material of the seal deteriorating. Rather, it is that a cold seal is not expanding quickly enough in certain circumstances to prevent some oil from seeping past the seal. Again, not every car has the problem, and I am not trying to suggest in any way that if someone stores their car they will have the problem. Rather, if your car is susceptible to the problem (whether because it has a bad (or badly installed) seal or block), then certain types of behavior may make it more likely for the problem to appear. Again, no personal knowledge just passing along info.
IN MY PERSONAL EXPERIENCE,A PORSCHE THAT HAS BEEN DRIVEN REGULARLY(HIGHER MILEAGE)WILL DEVELOP LESS LEAKS THAN ONE THAT HAS BEEN DRIVEN SPARINGLY(APPROX.2K MILES A YEAR).THIS HAS BEEN MY EXPERIENCE AS A TECHNICIAN.
Porsche should have stats on RMS claims based on geographic location. I am conducting a poll amongst RMS club on Rennlist to see if any of these factors lead to RMS more. You can cast your vote in the link below
https://rennlist.com/forums/996-forum/196904-rms-survey-does-drive-pattern-affect-chances-of-rms.html
All those that drive <5 mi daily
All those that drive daily >5 mi daily
All those that store over winter
All those that drive weekends only
It is possible for an extended winter hibernation to cause an RMS to leak but (unfortunately) that has nothing to with the RMS leak that 996 owners are experiencing. The problem is not the rear main seal it's the engine case.
I had a Tech tell me the same thing. The seal fails due to the heating and cooling cycle with the expansion and contraction of the seal. While he was telling me this we were standing under a Boxster with RMS that was being repaired. When I asked how common the RMS was, he just gave a big smile.
This is a source reference. Confirm exact model applicability in the original material.
