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Quick question - Coolant leak, 2003 996 C2

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

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YOUR RESEARCHQuick question - Coolant leak, 2003 996 C2

Reported or suspected cause

air oil separator

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
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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
If the coolant spot is left front of the engine, then it is more than likely the AOS.
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Quick question - Coolant leak, 2003 996 C2

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Leading evidence: 'air oil separator' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'air oil separator' (1 discussions; 0 report identifying it and 1 suggest it). 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 · 3 captured posts examined · 0 partial discussions

Reported and suspected causes (1)

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air oil separator

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
If the coolant spot is left front of the engine, then it is more than likely the AOS.
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Quick question - Coolant leak, 2003 996 C2

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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.

3 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: 20261026T213932Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

So I had a coolant leak (spot on the floor, coolant level low, even after filling it would decrease). Took it into my Indy - he just called and said he lifted it and it looks like its coming from the AOS. He needs to take down the tranny to get to it. Looking all together with parts and labor at $1250. Is he screwing me? I've taken my PTT and paid him 4K work for it, and another 2K for this 911 over the past 2 years.

POST 2Original post

I'd get a second opinion. The coolant tanks are famous for cracking and leaking in places you can't see.

POST 3Original post

Depending on mileage, but the AOS is a likely source of a coolant leak. You might want to consider going with the Indy on this one. The AOS has a supply and discharge coolant line and is a PITA to replace. If the coolant spot is left front of the engine, then it is more than likely the AOS. If left rear of engine, then coolant tank.

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