13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHIs this Porsche yellow coolant
Leading reported evidence
Run does not necessarily exculpate the reservoir
Suggestion or failed attempt
No successful repair reported for this finding.
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Suggestion
A cracked reservoir may only leak when the system is pressurized - so only losing coolant when the car is running does not necessarily exculpate the reservoir.
Leading evidence: 'Run does not necessarily exculpate the reservoir' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run does not necessarily exculpate the reservoir' (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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Suggestion · Original poster
Odd thing: if I top it off (using distilled water), it will weap out from somewhere and drip onto the left exhaust tip.
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Suggestion · Original poster
I know Porsche used to use yellow coolant then switches to pink/violet.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Run does not necessarily exculpate the reservoir
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
A cracked reservoir may only leak when the system is pressurized - so only losing coolant when the car is running does not necessarily exculpate the reservoir.
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.
13 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: 20261026T155324Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
That doesn't look like a standard colour, its usually pink.
I don't want to scare you but that looks very much like oil + coolant which is not a good sign. Is it cloudy and milkshake looking?
Can you siphon some out into a jar a post a pic?
No oil in this coolant. It is clear. I know Porsche used to use yellow coolant then switches to pink/violet. I want to buy coolant but want to stick with what ever is in there already.
If you currently have Porsche coolant, the pink will also be compatible. If you only need a top-up, just add distilled water. If this coolant is over 6 years old, maybe time for a flush & fill. You can use the less $ VW coolant too.
it's not very old as the PO flushed it at 50k. I will need to call the shop he used to find out what coolant and oil they used. Odd thing: if I top it off (using distilled water), it will weap out from somewhere and drip onto the left exhaust tip. Once the level is just below the min line, it stops leaking. Maybe a cracked reservoir?
if you top it off and it leaks before you start the engine then it could be a cracked reservoir. If it only leaks after the the engine is started and temps go up expanding the coolant it could be weeping via the pressure relief valve on top of the coolant reservoir. I would suggest you change it anyway to the pink version. My Indi changed mine because I had the green in mine when he worked on my car last. He recommends only to use the pink stuff.
Thank for the replies guys. I think I will collect parts and do the reservoir, water pump, tstat and coolant at the same time.
Right now I do not have cooling problems but it's 15 yrs old so I think it prudent to do some preventative maintenance (56k on odo).
A cracked reservoir may only leak when the system is pressurized - so only losing coolant when the car is running does not necessarily exculpate the reservoir.
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