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YOUR RESEARCHKeeping the roof open all winter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Clean sides of
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Performed · outcome unconfirmed
After you have cleaned both sides of that plastic with something like Novus 1, 2, and 3.
Keeping the roof open all winter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed work
Clean rag (i
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Suggestion
But if the top is already discolored, you start with the most abrasive cleaner, Novus #3, and a clean rag (I use a cotton washcloth) and you rub it on the surface as if you are polishing the window.
Keeping the roof open all winter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Clean sides of' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean rag (i' (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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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
For maintenance, I use Novus #1 about once or twice a year.
Keeping the roof open all winter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Clean rag (i
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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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Suggestion
But if the top is already discolored, you start with the most abrasive cleaner, Novus #3, and a clean rag (I use a cotton washcloth) and you rub it on the surface as if you are polishing the window.
Keeping the roof open all winter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Clean rag and polish it off
Suggestion or failed attempt
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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
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Suggestion
And then take another clean rag and polish it off.
Keeping the roof open all winter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use #1
Suggestion or failed attempt
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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.
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Keeping the roof open all winter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (7)
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Clean rag (i
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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
But if the top is already discolored, you start with the most abrasive cleaner, Novus #3, and a clean rag (I use a cotton washcloth) and you rub it on the surface as if you are polishing the window.
Keeping the roof open all winter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use cotton washcloth) and you rub it
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
But if the top is already discolored, you start with the most abrasive cleaner, Novus #3, and a clean rag (I use a cotton washcloth) and you rub it on the surface as if you are polishing the window.
Keeping the roof open all winter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.
8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 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: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
How bad is it to keep the roof in the open position all winter (with a hardtop attached). Does the plastic rear window suffer from being in that position for a prolonged time during low temperatures?
And put a clean fleece cloth between the plastic window folds so they don't rub together. After you have cleaned both sides of that plastic with something like Novus 1, 2, and 3. From an older posting:
Rear Window
We have all seen discolored rear windows on convertibles. They don't have to age like that. Mine is 5 years old and looks like new but it wasn't like that 2 years ago when I bought the car. It was discolored and cloudy. And the surface was rough.
Novus makes a series of products designed to deal with the problem (if you already have it) and to prevent it in the future. The Novus 1, 2 and 3 products consist of bottles of plastic cleaners in decreasing levels of abrasiveness. The three products are sold in a kit with several microfibre polishing cloths for about $25.
If the top is new, only use #1. But if the top is already discolored, you start with the most abrasive cleaner, Novus #3, and a clean rag (I use a cotton washcloth) and you rub it on the surface as if you are polishing the window. Do the outside of the window first, then do the inside. Keep it off the top (but if it gets on, just wipe it off quickly). Let it sit for a while. And then take another clean rag and polish it off. Then do the same using the mildly abrasive #2. And finish up with the non-abrasive #1 which is more of a polish than a cleaner. You should only have to do this once.
In addition to cleaning and polishing the surface of the window, these products seem to put some sort of oil into the plastic that allows them to increase their flexibility and thus resistance to cracking.
For maintenance, I use Novus #1 about once or twice a year.
Here's my question, Mike: How the heck do you get access to the inside of your back window? I've concluded only a contortionist with a long, thin, 12-jointed arm can get to it.
Removing the plastic screens attached to the roll bars behind the seats will give you a bit more room. I still found it difficult to reach all of the areas on the inside of the rear window. Maybe if I was 60 years younger it would have been easier.
John
With the top partially up. The inside is not going to need as many of the treatments as the outside so doing it once is enough. I was about 60 when I did mine.
