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Cabrio roof stuck after clam shell opens

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCabrio roof stuck after clam shell opens

Leading reported evidence

Check fluid level/leaks

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
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Discussions
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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.

Suggestion

And its a relative easy job to check fluid level/leaks.

Cabrio roof stuck after clam shell opens
Read full discussion summary

Leading evidence: 'Check fluid level/leaks' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check fluid level/leaks' (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 4 other evidence results

Check hydraulic fluid first and try not

Suggestion or failed attempt

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 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

Do yourself a favor, Check the hydraulic fluid first and try not to get caught up in all the internet hype about other areas of the cab top.

Cabrio roof stuck after clam shell opens

Check hydraulic fluid in pump reservoir

Suggestion or failed attempt

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 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

So, do not start out by anything other than checking hydraulic fluid in pump reservoir.

Cabrio roof stuck after clam shell opens

Check rams

Suggestion or failed attempt

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 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 can also check the rams for wetness/residue showing leaks.

Cabrio roof stuck after clam shell opens

Fill fluid, try the top again see what happens

Suggestion or failed attempt

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 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

Fill the fluid, try the top again see what happens.

Cabrio roof stuck after clam shell opens
Frequently discussed actions (7)

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

Check fluid level/leaks

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

And its a relative easy job to check fluid level/leaks.

Cabrio roof stuck after clam shell opens

Check hydraulic fluid first and try not

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

Do yourself a favor, Check the hydraulic fluid first and try not to get caught up in all the internet hype about other areas of the cab top.

Cabrio roof stuck after clam shell opens

Check hydraulic fluid in pump 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

So, do not start out by anything other than checking hydraulic fluid in pump reservoir.

Cabrio roof stuck after clam shell opens

Check rams

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 can also check the rams for wetness/residue showing leaks.

Cabrio roof stuck after clam shell opens

Fill fluid, try the top again see what happens

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

Fill the fluid, try the top again see what happens.

Cabrio roof stuck after clam shell opens

Replace calibration/sync

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

Instead, if roof close/open is needed and hydraulic fluid is gone/low this works good and won't change the calibration/sync.

Cabrio roof stuck after clam shell opens

Use 2 people

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

Use 2 people.

Cabrio roof stuck after clam shell opens
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.

  • 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: 20261026T135432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

The roof is currently open and the rear windows are down, when I press to close the roof, the clam shell opens, but nothing else happens. After the clam shell opens, I hear a soft click somewhere under the roof cover and then the rear windows click once as well. Any ideas on the likely culprit would be much appreciated. It is a 2003 996 Carrera 2.

POST 2Original post

This is the best thread I can point you to. https://rennlist.com/forums/996-foru...l#post19566325 The clamshell is electrically operated. There is a motor behind the rear seats that opens and closes it. Along the way, there are a handful of microswitches. Not computer related, simple electrical switches. Meaning, that the ENTIRE convertable top system can be figured out if you're mechanically minded enough. Once all of the switches open in sequence, then the hydraulic motor for the top can kick in and open/close the convertable top. My guess is that one of the microswitches is misaligned or faulty somehow. You do not need a porsche tech to do any service on this. Just a strong mechanical mind to understand where the switches are and how they sequence.

POST 3Original post

Quotes source post: 20630326

Welcome to the forum... Your above post seems to say your clamshell and its related components opens and closes fine. So, do not start out by anything other than checking hydraulic fluid in pump reservoir. A leak in cab top's hydraulic rams is THE major cause of most 996 cab tops not functioning correctly. And its a relative easy job to check fluid level/leaks. More than likely if your 25 year old rams have not been rebuilt yet they will need it done. Out of fluid rams can look like all kinds of other problems to techs not familiar with the 996 cab. Do yourself a favor, Check the hydraulic fluid first and try not to get caught up in all the internet hype about other areas of the cab top. Most/many of those other cab problems are caused unintentionally by good meaning techs that just don't know.... Fill the fluid, try the top again see what happens. Fluid leaks usually appear in front of the rear wheels, there is not a lot so its hard to see many times... You can also check the rams for wetness/residue showing leaks. But if fluid is low, 99% the 25 year old ram seals are shot. Do not ever do the manual top procedure in the manual unless its an absolute emergency and you're by yourself. That can open up a whole bag of worms and cause a lot more work that needs a piwis. Instead, if roof close/open is needed and hydraulic fluid is gone/low this works good and won't change the calibration/sync. Be gentle. Use 2 people. Do not force anything. One person to hold down the top button to open/closed position while the other person moves the roof open/closed gently from the middle by the hook. Make sure the button is held fully down till the roof is in the full closed/open position. Might have to go back and forth on the button to get the hook to catch while gently holding roof closed enough for hook to catch.... jmho

POST 4 / ORIGINAL POSTEROriginal post

Thank you both for your reply. I reached out to the seller (I'm a new buyer) and he told me to give a gentle push to both of the wings/flaps. Both appeared to be operating correctly but I gently pushed on each one once they were in the "open" position and this seemed to resolve the issue as it works now. Guessing one or both of the flaps were ever so slightly stuck which caused an issue with a microswitch?

POST 5Original post

Yeah I was going to suggest making sure the flaps were fully open , but there are so many things it COULD have been and I hate to guess wrong... Normally it takes a PIWIS to verify all the microswitches are in their full open/close positions once the common failure points are checked ...

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