15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHeadlight bulb access/change?
Leading reported evidence
Replace oe bulbs
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 replaced my OE bulbs for H7 80w Halogen Extreme Blue bulbs from Halfrauds.
Leading evidence: 'Replace oe bulbs' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace back' (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 · Original poster
Cheers - found the slot I think but it's never been used i.e.
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
Any reason they could have been changed back to standard ones?
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.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 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: 20261026T150451Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Within the tool kit should be a small, about 8mm box spanner. You then need to unscrew the plastic keeper that holds the luggage compartment carpet (it's at the top) and open that out. Then theres a rubber 'door stop' is the best way to describe it. Pop that out and place in mini box spanner. You then locate this and half a turn will unlock the assembly, which you can then carefully pull out. Once done it suprisingly quick and easy!
Hmmmm, seems like that was the easy bit. I got the bulb out & went to Halfrauds...
According to their reference, I needed a "477*"pre 2001 or a "709" post 2001. Mine's a 2002 but they didn't have any "709"s. My bulb looked exactly like a "477" but then there were 477R, 477SB etc etc etc.
Looking up the Porsche parts list it reckons I need a 999.631.133.90 and just describes that as a "halogen bulb H7 white".
Back in Halfrauds, the boxes marked H7 had all sorts of other IDs.
Any idea what all these things mean? Also, what changed in 2001...just wondering what might be the 477/709 difference?
Can anyone clarify which numbers/letters are important i.e. refer to the fitting & colour temp/whatever?
Nope - I had a Paragon change the bulbs at service as the headlights weren't terribly bright and what light they did have was used to illuminate most of the county rather than the road ahead. As I wanted bulbs & alignment seemed to make sense to get both done.
I think the universal fitment you need is the H7.
The 477 and 709 are Helfrauds specific numbers. They seem to go on these numbers in that little reference booklet they have in store.
The R and SB, I think, are just whether you go for a standard brightness of bulb or some sort of premium bulb etc.
Sounds like yo have a headlight out which means you need a bulb quick but I would go to someone like this:
PowerBulbs
And buy uprated bulbs. They make a big difference.
Bit of a follow up question....how do you tell if you have litronics or not?
It looked like a pretty standard bulb/setup to me but in my service book it has M601 (litronic headlamps) as an option :?
FWIW, the sticker also says M689 & M692 but I have no cd changer either
No bluey glow etc - sounds fishy?
Any reason they could have been changed back to standard ones?
Where would the CD changer live exactly? Anyone got a pic so I know what it looks like?
If you look under the front bonnet you should be able to see an outline roughly the shape/size of a CD-Changer to the top left of the boot space, the changer is mounted vertically next to the brake fluid reservoir.
Cheers - found the slot I think but it's never been used i.e. the blanking plate is still in place! Doesn't look like it's been removed/nicked just never installed...so why is it on my options list? :? :? :?
Hi,
I noticed my drivers side light was out (side light still okay, but main gone) last night while buying my xmas tree (it fits in the passenger seat).
Anyone got any pictures of the procedure described by Flatsix?
Also - from what this thread says, I should try and get an H7 80W bulb as they are more powerful than the original Porsche ones -
is that correct? Any other bulbs I should consider?
(and I will try and remember to get two so my lights are not lopsided!)
Any help on the procedure and the actual bulb I should get would be v gratefully rcvd. Thanks.
This is a source reference. Confirm exact model applicability in the original material.
