12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHLitronic occasionally turns itself off? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Check wiring, electronics
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
I swapped bulbs left to right, checked all the wiring, electronics for loose contacts and solder joints etc.
Litronic occasionally turns itself off? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Check wiring, electronics' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check bulb' (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.
Litronic occasionally turns itself off? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace bulbs left
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
I swapped bulbs left to right, checked all the wiring, electronics for loose contacts and solder joints etc.
Litronic occasionally turns itself off? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check bulb
Suggestion or failed attempt
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 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.
Litronic occasionally turns itself off? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace pair
Suggestion or failed attempt
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 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.
Litronic occasionally turns itself off? - 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.
12 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.
3 acknowledgements have no verified action link; they do not establish a repair result.
I have factory Litronic headlights on my base -99. Recently I've discovered that the left light turns itself off from time to time. There's no obvious pattern to it. When I turn the lights off and on again, it works again. The difficult thing is to know when it goes dark.
I'm guessing it's either the Control Unit or the Ignition Control Unit for the headlight. Since it only occurs on the left headlight, I don't think it's related to the switch.
In Sweden it's mandatory to have low beams (or DRL) turned on during the day as well, so I need it to work.
Any thoughts?
Forgot to mention that I've replaced the bulb. That's not the problem.
Just how did you the check the bulb? Swapped left to right or replaced with a brand new one?
I had similar behavior in my previous 3-series. The intermittent turn-off was sometimes triggered by a bump and happened more often in winter. I swapped bulbs left to right, checked all the wiring, electronics for loose contacts and solder joints etc.
Drove me mad until I started replacing parts. Bulbs being the cheapest I did them first. Presto, no more issues. In my experience Xenon bulbs last about 6 years. By that time they loose too much light output or start giving problems.
yes, swap bulbs left to right is first test. if issue follow then bulb is most likely issue.
if not, then issue upstream from bulb...
If bulb bad, replace pair... unless of course you selected that secret special Porsche option M-BulbSelect allowing you to choose which bulb to run when ;-)
Thanks, everyone! I replaced the bulb with a brand new one. It's only on the left hand side and only occasionally, but according to Smallblock454 it could also be the light switch? I've bought a new ignitor and will replace it after the winter. The car's currently under a blanket since summer is over here in Sweden.
A new ballast solved the problem. However, since I wasn't too keen on paying the Porsche tax, I found a replacement on Amazon. The difference was that it didn't have the screw holes for mounting it to the headlight casing. But for a fraction of the price (I'm talking 1/20th!!!) it was worth a chance. It turned out to not only work, but I could also swap the electronics into the old casing with the screw holes. That's a win!
I'm in Sweden, and unfortunately I can't find the same product on amazon.com. However, all I did was search for the Porsche part no. 99363119302.
Here's one that looks like it's exactly the same:
https://www.amazon.com/MOTOALL-Headlight-1307329052-1307329023-Mercedes/dp/B0B7NCZP9Z
This is a source reference. Confirm exact model applicability in the original material.
