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99' cab with a factory rear glass window ?

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

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YOUR RESEARCH99' cab with a factory rear glass window ?

Leading reported evidence

Install the car has good records

Performed · outcome unconfirmed

No successful repair reported for this finding.

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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.

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Performed · outcome unconfirmed · Original poster

- but from your reply along with never seeing a pre 2002 with a glass rear window - a new top must have been installed - the car has good records from previous owners but no new top receipt $.

99' cab with a factory rear glass window ?
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Leading evidence: 'Install the car has good records' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install the car has good records' (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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1 matching discussions · 6 captured posts examined · 0 partial discussions

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Replace tops

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.

Performed · outcome unconfirmed

My hunch is that someone swapped tops after their plastic window cracked - Robbins Auto Top sells a glass replacement panel for the 996 top.

99' cab with a factory rear glass window ?

Use on the removable hardtop

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.

Performed · outcome unconfirmed

The defrost button is used on the removable hardtop with a glass window, which were standard in '99.

99' cab with a factory rear glass window ?
Frequently discussed actions (3)

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

Install the car has good records

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

- but from your reply along with never seeing a pre 2002 with a glass rear window - a new top must have been installed - the car has good records from previous owners but no new top receipt $.

99' cab with a factory rear glass window ?

Replace tops

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

My hunch is that someone swapped tops after their plastic window cracked - Robbins Auto Top sells a glass replacement panel for the 996 top.

99' cab with a factory rear glass window ?

Use on the removable hardtop

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

The defrost button is used on the removable hardtop with a glass window, which were standard in '99.

99' cab with a factory rear glass window ?
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.

6 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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

New member / first post... I finally bought a 911, 99 cab - its a hardtop delete, [[750 Delete Cabriolet Hardtop]] and it has a glass rear window w defrost... while searching for the right porsche., I never ran across a pre 2002 with a glass rear window - This 99 also has a werks 1 code 09991 manufacture from the exclusive-programme -- did porsche offer glass in 99 ? Anyone ever see a 99' with a glass rear window? Many thanks

POST 2Original post

Do you have a defrost switch for the top? The 09991 code seems common and generic - I suspect it's unrelated to your rear window. My hunch is that someone swapped tops after their plastic window cracked - Robbins Auto Top sells a glass replacement panel for the 996 top. If you have factory wiring and a switch for the rear window defogger, however, my hunch would seem wrong...

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 12093811

thanks 5CHN3LL- yes I do have the defrost button - - but from your reply along with never seeing a pre 2002 with a glass rear window - a new top must have been installed - the car has good records from previous owners but no new top receipt $. I understand that glass rear windows weren't offered from Porsche [996] until 2002- so the 09991code couldn't be for the glass rear window.. I noticed more on the 09991code here https://rennlist.com/forums/993-foru...programme.html clever screen name 5CHN3LL... would that be on your license plate's as well?

POST 4Original post

Quotes source post: 12095292

The defrost button is used on the removable hardtop with a glass window, which were standard in '99. The convertible top was not available from the factory with a glass rear window in '99. There are one or more aftermarket replacement tops with (smaller) glass windows available. ( GAHH is one of them). Looks like you have a replacement top.

POST 5Original post

Its hard to tell from the angle of your photo, but I think you have a replacement top with a glass window, which in the pre-2002 cars is smaller in size. I replaced my top about a year and a half ago and struggled with the decision to go with plastic (larger window) or glass (smaller window). Plastic won out for me. Look for some photos on the internet and/or compare your car to others around and look at the size difference to be certain.

POST 6 / ORIGINAL POSTEROriginal post

Quotes source post: 12103535

Thanks - yes its a gahh - the car was a hard top delete 750... PO must have had the defrost added when the top was redone..

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