16 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH718 - rear light condensation - Page 1 - Boxster/Cayman - PistonHeads UK
Reported or suspected cause
likely
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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 report identifying a cause
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.
Reported cause
I'd recommend having it addressed promptly rather than hoping it will dry out on its own, as the problem is likely to worsen over time, especially with changing weather conditions.
Leading evidence: 'likely' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'likely' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace dramatically in a short period' (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
Both light units were replaced by my OPC under warranty.
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 suspect a cause
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.
Suspected cause
To be fair they were probably an L4 grading and even took photos at their worst when i dropped car off in case they 'improved' under a change in conditions prior to assessment.
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
More to do with storage and external weather temps that change dramatically in a short period.
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
I'd recommend having it addressed promptly rather than hoping it will dry out on its own, as the problem is likely to worsen over time, especially with changing weather conditions.
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'd recommend having it addressed promptly rather than hoping it will dry out on its own, as the problem is likely to worsen over time, especially with changing weather conditions.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
likely
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
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.
Reported cause
I'd recommend having it addressed promptly rather than hoping it will dry out on its own, as the problem is likely to worsen over time, especially with changing weather conditions.
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.
Suspected cause
To be fair they were probably an L4 grading and even took photos at their worst when i dropped car off in case they 'improved' under a change in conditions prior to assessment.
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.
16 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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: 20261026T194705Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Is it really acceptable to have significant condensation inside the rear lights, after driving 120 miles on a dry, sunny, warm day?
And the previous 2 days were dry too!
Tony B2 said:
Is it really acceptable to have significant condensation inside the rear lights, after driving 120 miles on a dry, sunny, warm day?
And the previous 2 days were dry too!
You had a warm day? It was minus 5C here (Glos) last night and only briefly hit 10C during the day. Car is already iced up again.
Discombobulate said:
Tony B2 said:
Is it really acceptable to have significant condensation inside the rear lights, after driving 120 miles on a dry, sunny, warm day?
And the previous 2 days were dry too!
You had a warm day? It was minus 5C here (Glos) last night and only briefly hit 10C during the day. Car is already iced up again.
Definitely warm during the day - felt like low teens at least (that is warm after the grimness of the last few months!)
There was a light frost overnight - maybe -1C
On my last two CGTS 4.0's I had condensation droplets inside the rear nearside light clusters lenses. The droplets were ever present whatever the weather conditions. Both light units were replaced by my OPC under warranty.
No, significant condensation inside rear lights after driving in dry, sunny conditions for multiple days isn't normal or acceptable, especially on a modern vehicle.
Significant or persistent condensation indicates a problem with the seals or ventilation of the light unit.
I'd recommend having it addressed promptly rather than hoping it will dry out on its own, as the problem is likely to worsen over time, especially with changing weather conditions.
Many thanks for sharing this service bulletin.
My Spyder's lights are probably around L2 but the difference between this and L1 is difficult to define based on these pictures.
Looks like another trip to the dealer is required.
More M27 hassle...I hate the M27!
My reading of the TSB is that L1 affects areas of the light covers that the light doesn't pass through, in essence the edges, L2 affects areas of the light covers that the light passes through.
Check out the example photos for L1 and L2 with that in mind...
Here was my car, after 50 miles or so driving on a warm, completely dry day (last Friday).
I think that is pretty close to L2.
Edited by Tony B2 on Thursday 6th March 23:45
Tony B2 said:
Here was my car, after 50 miles or so driving on a warm, completely dry day (last Friday).
I think that is pretty close to L2.
Edited by Tony B2 on Thursday 6th March 23:45
Mine are nearly always like this (the car is 4 years old this week), I've never really thought about it to be honest but maybe I need to get it sorted! Bit annoying as the car was with Porsche last week for its big service!
Keep us updated
More to do with storage and external weather temps that change dramatically in a short period.
Have had this on multiple porkers, 997.2 was the worst.
Come to think of it, had this on an vantage as well.
Edited by Gt4user on Friday 7th March 08:42
Tony B2 said:
Here was my car, after 50 miles or so driving on a warm, completely dry day (last Friday).
I think that is pretty close to L2.
Edited by Tony B2 on Thursday 6th March 23:45
As the upper brake light components are obscured by the mist it looks like L2 at least.
The lower picture seems to me to show some heavier droplets in the mist ( might be compression artefacts in the photo though...), so possibly tending towards L3.
Edited by Techno9000 on Monday 17th March 09:15
My great OPC looked at my rear light condensation and agreed to replace them under warranty. Was a '22 GTS. To be fair they were probably an L4 grading and even took photos at their worst when i dropped car off in case they 'improved' under a change in conditions prior to assessment.
Whats the fix- i realise that swapping the units will generally sort the issue out, but for those of us out of warranty, what has deteriorated in the original units compared to new units?
This is a source reference. Confirm exact model applicability in the original material.
