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thermostat bolts replace?

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

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YOUR RESEARCHthermostat bolts replace?

Leading reported evidence

Use /stretch bolts

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Suggestion · Original poster

I believe based on color, the bolts are one time use/stretch bolts.

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thermostat bolts replace?
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Leading evidence: 'Use /stretch bolts' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use /stretch bolts' (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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Use because the anti-corrosion passivation may be compromised leading

Suggestion or failed attempt

No successful repair reported for this finding.

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

Suggestion

They are probably listed as one time use because the anti-corrosion passivation may be compromised leading to dis-similar metal corrosion between the bolt and the housing.

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thermostat bolts replace?
Frequently discussed actions (2)

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Use /stretch bolts

No successful repair reported for this finding.

0
Reported fixes
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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 · Original poster

I believe based on color, the bolts are one time use/stretch bolts.

Original post Read captured discussion
thermostat bolts replace?

Use because the anti-corrosion passivation may be compromised leading

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

They are probably listed as one time use because the anti-corrosion passivation may be compromised leading to dis-similar metal corrosion between the bolt and the housing.

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thermostat bolts replace?
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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

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Generation: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

If I had them, I would totally replacement given the low cost. My question is - do I have to? I believe based on color, the bolts are one time use/stretch bolts. But my dealer doesn't stock them, doesn't know how long to order them, and I'd like to get the car done sooner rather than later. So if I can reuse them, I probably will because it's that or wait.

POST 2Original post

The greenish tint on the bolts is anti-corrosion passivation. I don't believe they are a torque to yield bolt, that would be strictly foolish for this application, you'd tear the threads out of the aluminum housing long before the bolt even thought about yeilding. They are probably listed as one time use because the anti-corrosion passivation may be compromised leading to dis-similar metal corrosion between the bolt and the housing. I would reuse and add anti-seize paste of some sort. I like the Permatex Nickel based product. The part# is listed as 900.378.030.09 and they show as $0.45 each at Gaudin Porsche Parts if you are inclined to go that route.

POST 3 / ORIGINAL POSTEROriginal post

900.378.030.01 is what I have I think (M6 x 20mm). Point taken on the coating, thanks!

POST 4Original post

I had a typo, it's listed as 900.378.030.09 in my 10-year old parts catalog and I agree it's M6x20. That .09 is superceded to the .01 number.

POST 7Original post

I replaced mine, but then have used them on a spare engine. They all torqued just fine.

POST 9Original post

Quotes source post: 16950444

Yes! A broken bolt here would suck. You'd probably have to drop the engine to repair it.

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