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What is this hose? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHWhat is this hose? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Reported or suspected cause

coolant reservoir leak

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
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 suspect 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.

Suspected cause
likely a coolant reservoir leak.
Original post Read captured discussion
What is this hose? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Frequently discussed work

Test coolant system and make sure it is full

No successful repair reported for this finding.

0
Reported fixes: 0
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
You need to pressure test the coolant system and make sure it is full.
Original post Read captured discussion
What is this hose? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Read full discussion summary

Leading evidence: 'coolant reservoir leak' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'coolant reservoir leak' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Test coolant system and make sure it is full' (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 · 5 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Test coolant system and make sure it is full

Suggestion or failed attempt

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
You need to pressure test the coolant system and make sure it is full.
Original post Read captured discussion
What is this hose? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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.

Test coolant system and make sure it is full

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
You need to pressure test the coolant system and make sure it is full.
Original post Read captured discussion
What is this hose? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Reported and suspected causes (1)

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

coolant reservoir leak

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect 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.

Suspected cause
likely a coolant reservoir leak.
Original post Read captured discussion
What is this hose? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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.

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

986Forum: 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: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey there everyone, I’ve been chasing a coolant leak, P0410 and P1126, which may or may not be linked. I recently took a look under the car, and I found those hose disconnected, and I can’t seem to find where it connects to. Anyone have a clue? On the passenger side of the engine bay

POST 2Original post

those look to be the power steering hoses..

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 657552

So, I followed it, and it seems to be the coolant overflow hose. I just topped up the coolant and it’s not leaking as of now, but I noticed it leaking yesterday after driving it. It proceeded to leak below the min line

POST 4Original post

Yes coolant overflow hose, connects to the coolant reservoir in the rear of the engine compartment. Pull up the carpet in the trunk to see if it is wet... likely a coolant reservoir leak.

POST 5Original post

More precisely it is a coolant drain hose that drains any overflow from the pocket around the coolant fill and vent relief in the trunk. If you spill coolant while filling or coolant is released through the fill cap it is drained by this hose. If you detect a coolant release from this hose it is likely your coolant cap is bad or you are making more than 20 psi in the coolant system because of over heating. The cap will release pressure over 20 psi. You need to pressure test the coolant system and make sure it is full. This drain hose is a symptom not a cause of a leak.

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