11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHNeed help tracking down coolant leaks
Leading reported evidence
Replace 3 hoses
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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 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.
Leading evidence: 'Replace 3 hoses' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill system back up' (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 contain suggestions
1
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Suggestion · Original poster
Even though the system wasn't completely drained of coolant (probably had about 4 gallons out of it), it was able to fill the system back up.
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 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.
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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Suggestion
Just pop the lid and replace the gasket it is coolant.
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.
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Suggestion
Im currently replacing all rubber coolant lines along with a bunch of other things.
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.
11 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: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
2003 996 C2
I'm finally starting to work on fixing a coolant leak that I have near the front passenger side of the engine. I had kind of figured it was coming from the two hoses that are probably original so I ordered what I thought were the correct replacements and of course they are not correct.
But anyway, I was looking and I see an accumulation of coolant at the bottom of this "lid" (part #15 in the parts diagram) which could be being sprayed from one of the leaky hoses or could be leaking from a faulty gasket. My question is this: is there coolant or oil behind this lid? There is ZERO moisture above the lid--all of the moisture is at the bottom of it and below. The moisture is definitely coolant with NO oil residue.
Im currently replacing all rubber coolant lines along with a bunch of other things. It was mentioned to me that the gasket under the lid is prone to leaking. Just pop the lid and replace the gasket it is coolant.
I JUST replaced this very lid/cover a few weeks ago. There is coolant behind it, and mine was leaking in the exact same way. No fluid/residue up top, just buildup at the bottom.
The bolts are 10mm and the new plate comes with the gasket. When you undo the bolts, be ready to catch some coolant. Not a lot comes out, but have a bucket under there.
It looks like Porsche may have updated the cover to use a rubber seal now instead of a paper gasket. I'm thinking I should get the full updated part.
996-101-016-00
996-101-336-50
The cover I removed has a rubber seal but, as you can see from this picture, it is pretty much hardened up.
Thanks for the input from those of you that helped me figure out that this covered a coolant passage.
Everything is back together and seems to be working fine. No leaks so far from what I can tell. I actually think the case cover was the only part that was leaking. Regardless, I'm glad I replaced the 3 hoses. The weren't really that expensive, and one of the three was pretty dried up. I was happy that I matched up all 3 hoses correctly w/o looking for part numbers on the hoses. Turns out 2 of them did have visible part numbers but the third did not.
My Schwaben "cooling system evacuation tool" worked great to refill the coolant. Even though the system wasn't completely drained of coolant (probably had about 4 gallons out of it), it was able to fill the system back up.
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