Porsche Club GB

3.4 Carrera A/C Compressor?

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YOUR RESEARCH3.4 Carrera A/C Compressor?

Leading reported evidence

Check condensers (

Performed · outcome unconfirmed

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Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed · Original poster
I have checked the condensers (replaced 5 years ago) and no sign of damage or leaks and the system is holding pressure.
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3.4 Carrera A/C Compressor?

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Leading evidence: 'Check condensers (' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check condensers (' (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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Replace with the air con selected off or

Suggestion or failed attempt

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
The air con clutch is still functioning but when I put my hand on the compressor I can't feel any change with the air con selected off or on???
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3.4 Carrera A/C Compressor?

Frequently discussed actions (2)

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Check condensers (

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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.

Performed · outcome unconfirmed · Original poster
I have checked the condensers (replaced 5 years ago) and no sign of damage or leaks and the system is holding pressure.
Original post Read captured discussion
3.4 Carrera A/C Compressor?

Replace with the air con selected off or

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 · Original poster
The air con clutch is still functioning but when I put my hand on the compressor I can't feel any change with the air con selected off or on???
Original post Read captured discussion
3.4 Carrera A/C Compressor?

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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.

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

Porsche Club GB: 1 discussions

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Generation: 20261027T165639Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Is my A/C compressor broken? Since the onset of the warm weather it has become blatantly clear that my air con is no longer working. It used to be like turning the inside of my 996 into the arctic and now nothing. I have checked the condensers (replaced 5 years ago) and no sign of damage or leaks and the system is holding pressure. When I turn the air con on you get the normal increase in revs and a sort of hissing noise from the vents and then no cool air. On a drive to work the other day I noticed rumbling/knocking noise and got concerned so turned off the fans/air con and the noise stopped, I have now isolated it to the air con compressor (I don't recall it being noisy before now). The air con clutch is still functioning but when I put my hand on the compressor I can't feel any change with the air con selected off or on??? I would appreciate if the knowledgeable 996 owners on the forum would agree with my diagnosis and whether it is a DIY or specialist job (Design 911 do a Denso OE part for 299+vat / Porsche have quoted 900inc vat fitted)??? Thanks in advance Damien.[8|]

POST 2Original post

I would get it re-gassed first. It is common for the a/c compressor to become noisy when the gas pressure is low.

POST 3Original post

Which probably points to damaged A/C rads at the front of the car. Leaves and detritus get trapped in there and rot them. So if it is regassed and stops working again I'd have a look at those next. There is a DIY in the technical section.

POST 4 / ORIGINAL POSTEROriginal post

Thanks Richard, I have checked the pressure and all is good so I will try an air con service and see if that helps, (finger crossed) thanks. Damien.

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