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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH2002 plastic window prevent scratch and cracks - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Replace entire top
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
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Performed · outcome unconfirmed
I have seen where some have either changed the plastic window for a glass one or replaced the entire top with an aftermarket one with a glass window.
2002 plastic window prevent scratch and cracks - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed work
Clean every time
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0
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0
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1
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1
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Suggestion
I spray the window and wipe it clean every time before putting the top down and I've had Triumphs for over 25 years with no scratches in the windows this way.
2002 plastic window prevent scratch and cracks - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Replace entire top' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'single most important thing is' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Clean every time' (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.
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
I have seen where some have either changed the plastic window for a glass one or replaced the entire top with an aftermarket one with a glass window.
2002 plastic window prevent scratch and cracks - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use #1 just
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No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
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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 performed work without a confirmed outcome
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Performed · outcome unconfirmed
I use #1 just to keep it that way as #3 and #2 are abrasive and good for correcting, not for maintaining.
2002 plastic window prevent scratch and cracks - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use novus #1 twice a year
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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 performed work without a confirmed outcome
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Performed · outcome unconfirmed
I use Novus #1 twice a year on mine and it keeps the plastic clear and flexible.
2002 plastic window prevent scratch and cracks - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use piece of felt
Performed · outcome unconfirmed
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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
Previously, I used a piece of felt from a fabric store and it functioned just as well.
2002 plastic window prevent scratch and cracks - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (8)
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Clean every time
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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
I spray the window and wipe it clean every time before putting the top down and I've had Triumphs for over 25 years with no scratches in the windows this way.
2002 plastic window prevent scratch and cracks - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use towel
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Suggestion
I would try doing a search for it, I have been reading posts on here for a few months and do not recall anyone mentioning using a towel to protect the plastic window.
2002 plastic window prevent scratch and cracks - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Reported and suspected causes (1)
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
single most important thing is
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
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Reported fixes
Read evidence and context
Discussions that suspect a cause
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Suspected cause
For keeping the window from scratching, probably the single most important thing is to make sure their is no dirt or dust on the window before you put the top down, and never wipe a plastic window with a dry cloth.
2002 plastic window prevent scratch and cracks - 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
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Generation: 20261027T031046Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have a 2002 Boxster I was told to put a towel over the rear window when folding it down to protect from scratching and cracking.
Is there any aftermarket towels with straps on them covering the window?
I would try doing a search for it, I have been reading posts on here for a few months and do not recall anyone mentioning using a towel to protect the plastic window. I do not see how that would keep it from cracking but I may have missed it. I have seen where some have either changed the plastic window for a glass one or replaced the entire top with an aftermarket one with a glass window.
What they are refering to is a technique to help prevent the plastic window from cracking where it is folded in the middle. What you do is place a rolled up towel in the fold of the window as it is retracting to keep the window from bending too sharply as it is folding up. If you are by yourself, it requires that you partiallly retract the top, get out and place the rolled up towel in the fold of the window, then get back in and continue with the top retracting. it makes the window fold around the towel in a nice round bend, instead of a sharp bend. I store the rolled up towel behind the roll bar in my car. I got a dark grey towel and you can hardly see it with my black interior. It sounds like a PITA, but is better than cracking the window in two. ($$$$$)
BTW, don't try to put the top down if the weather is cold. You are taking a risk of cracking the window along the fold line because the plastic window is less flexible when it is cold.
The instructions for installing the hard top include putting a piece of felt over the window. That way the plastic won't rub against itself for the 3-4 months that the top is in the open position.
I bought a used hard top cover and the seller threw in the official Porsche felt and a storage bag. Previously, I used a piece of felt from a fabric store and it functioned just as well.
For keeping the window from scratching, probably the single most important thing is to make sure their is no dirt or dust on the window before you put the top down, and never wipe a plastic window with a dry cloth.
I carry a plant spray bottle with water and a soft towel in the trunks of my two convertibles with plastic windows. I spray the window and wipe it clean every time before putting the top down and I've had Triumphs for over 25 years with no scratches in the windows this way.
Even when clean, if the window folds so the plastic is rubbing against itself, it will leave a mark. Felt or soft towels on the windows works really well to protect them, but you still want to make sure they are free of dust or they could still get scratched.
to keep the rear window from cracking is to keep the plastic itself flexible by using something that restores the oils in it. I use Novus #1 twice a year on mine and it keeps the plastic clear and flexible. I also try to keep it inside and or covered when I can to reduce the drying effect of the sun's rays.
Novus sells a kit consisting of three grades of plastic cleaners #1, #2 and #3. When I bought my car, the window was yellowed and had a crusty surface feeling to it. One polish with #3 and one with #2 and it was beginning to look clear. #1 brought it to the clear and shiny and soft feeling stage. I use #1 just to keep it that way as #3 and #2 are abrasive and good for correcting, not for maintaining.
But whatever you do, don't raise or lower the window in the cold. If it is in the 60s or 50s and the car hasn't been sitting in the sun so the plastic can warm up, I even lower or raise it in stages and even get out and make sure it is folding nicely if I'm lowering it ("the chop" it is called because it is done with the side of the arm). In the 40s or below, the top doesn't ever get raised or lowered. If I had to, I'd use a space heater inside the car to warm the plastic before even moving the top at those temps.
The towel or felt is good for not having the plastic rub against itself and dig whatever dirt is on it into the plastic surface.
I understand the towel now, thanks for explaining it even if it does not effect me as I have a glass window. I enjoy learning new things about Boxsters of all years.
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