18 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHDowngrade Headlights
Leading reported evidence
Use 3000 grit
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.
Leading evidence: 'Use 3000 grit' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'dozen)' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Clean lights as suggested and get them covered' (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 used the liquid wipe on and wipe off stuff off the shelf.
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.
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 · Original poster
I have found an expel dealer here in Lisbon so will clean the lights as suggested and get them covered.
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 · Original poster
I have used cleaning products before but the Portuguese sun just bakes it again.
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.
18 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: 20261026T052503Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi. I have a 2004 C4S and too much sunshine has ruined the Litronic headlights. They are too expensive to replace so I thought I would order new standard halogen ones. I believe they will fit but will they work or does any wiring need to be changed? Any other problems apart from reduced lighting?! Thanks for your help.
There is a current (i.e. amps) difference between the Halogen vs. Litronic (i.e. HID) headlights. They would physically fit, but more than likely, you'll get a MIL. You're better off getting a shop to buff the oxidation and UV treat them. Normally, this procedure can be done for about $150 each.
I've buffed dozens of sets of lights for all different kinds of cars.
Normally they look brand new when done.
The Porsche 9x6 is one of the easiest to do.
If you're in the Houston area, hit me up and I'll do it for free.
Otherwise look at the Meguires kit and do it yourself.
All you need other than the kit is a variable speed drill, some water, dishpan, and a bicycle pump.
Bicycle pump is for removing the washer nozzle covers safely.
What a nice offer TexSquirrel….if you were closer I would take you up on it...I did it once and did it all with manual labor....was a lot of work but results were great. I am always afraid of using power....How long does it take you.
I used the liquid wipe on and wipe off stuff off the shelf. The results are amazing. At some point I plan to do them right and clear over them but at least I can now see what's behind the lenses...
I did mine a couple weeks ago. Mine were a little too far gone to use the Meguiars kit, so I just popped them out and wet sanded them. I started with 1000 then 1500 then 2000 and finished with 2500. Relatively easy and hard to screw it up. Just a spray bottle of water and some elbow grease. I spent about 45 minutes on each light. best part is that you can pop them out and do it in front of the TV. Afterwards I sprayed the lenses with Meguiars sealant that comes in their headlight kit to provide some UV protection.
I start with a 1000 grit sanding block and then follow up with 3000 grit sandpaper.
Then finish with a liquid polishing compound on a buffing wheel.
Then I finish with a UV protectant.
It normally takes me 20-30 minutes per headlight.
I don't use the Meguires kit anymore, but that's how I started.
The kit will do many headlights. (probably a dozen)
I recently purchased two really ugly yellow clouded Xenon headlights off eBay for a great price.
40 minutes later they look almost like new.
Now i can switch back and forth between my headlights with headlight covers and stock looking headlights.
Elbow grease it is then! I have used cleaning products before but the Portuguese sun just bakes it again. I have missed the UV treatment so that's where I have gone wrong. Much appreciate the advice and offers of help.
My headlights are in desperate need of this treatment. I was thinking it was all hand sanding with simply paper but you mention you use a [rubber] block? I was concerned that would be too stiff and add flat spots to the curves. Any words of advice or caution on this front?
Your posts are encouraging me to get off my duff and get this job done.
It’s not a rubber block.
It’s this:
I buy them at Home Depot.
I was wrong on the final grit that I use. (Brain fart)
I use 3000 grit.
Then I finish with a polishing paste.
Get the kit and give it a try, just make sure to mask off the area around the light if you don't remove them. If it doesn't work well enough you haven't spent much on the kit
Highly recommend Expel over newly polished headlights. I brought mine back as described by others here, but within months they would start to get hazy, although nowhere near what they originally were. Local guy custom cut the film for my headlights, and I applied them. $50 for the film, $100 if he applied it.
I am totally impressed! Two years have now gone by and they still look new. Going to cover wife's SUV headlights next. Great stuff (and there are other similar products from other mfg's).
I have found an expel dealer here in Lisbon so will clean the lights as suggested and get them covered. Got small surface cracks in the rear lamp lenses too. Does anybody know of a product for sealing them please?
This is a source reference. Confirm exact model applicability in the original material.
