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RMS last week--Expansion tank this week

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7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHRMS last week--Expansion tank this week

Leading reported evidence

Replace engines

Suggestion or failed attempt

No successful repair reported for this finding.

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Unsuccessful attempts
1
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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

I believe Porsche has replaced engines under warranty for multiple RMS failures if the crankshaft is out of spec.

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RMS last week--Expansion tank this week
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Leading evidence: 'Replace engines' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace engines' (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.

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1 matching discussions · 7 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

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

Replace engines

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 believe Porsche has replaced engines under warranty for multiple RMS failures if the crankshaft is out of spec.

Original post Read captured discussion
RMS last week--Expansion tank this week
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.

7 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: 20261026T103553Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Thank God for warranties. Even got a coolant flush out of the deal.

POST 2Original post

Nice, it's not a hard DIY but fairly annoying!

POST 3Original post

Just curious...how much would an RMS replacement be today? Still around $800-900.00?

POST 4 / ORIGINAL POSTEROriginal post

I didn't see the bill for the RMS replacement but the expansion tank w/ rad flush was $364. I would guess around 1.2K for RMS.

POST 6Original post

This may be a dumb question, but does and RMS replacement come with a warranty and if an engine out of warranty failed due to the failure of a recently installed RMS would there be a case for the factory paying for a new engine?

POST 7Original post

Porsche repairs carry a two year unlimited mile warranty unless you are still under factory warranty. If still under factory warranty, the repair is warranted for the remainder of the factory warranty. As for the engine failure, a leaky RMS will not cause an engine to fail. One of the possible conditions that causes the RMS to leak, an out of spec crankshaft, could possibly cause an engine failure I suppose.... I believe Porsche has replaced engines under warranty for multiple RMS failures if the crankshaft is out of spec. I don't know if Porsche is currently replacing out of warranty engines. You might do a search on engine replacements and find several threads......

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