12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHair filter interval?
Leading reported evidence
Replace air filter
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Performed · outcome unconfirmed
Changed my air filter after 17k miles and it really wasn't that dirty, but at $22.
Leading evidence: 'Replace air filter' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace air filter' (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.
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Suggestion
I change the pollen and air filters on all my cars at two year intervals.
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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Suggestion
If the A/C blower is running, the incoming air via that path is being "filtered".
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12 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: 20261027T061840Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
The air filter interval is 30K miles. Is there any point to changing it more frequently? It looks like a straightforward 15 min DIY job (based on Loren's excellent DIY page), but I'm feeling kind of lazy about taking things apart unless there is a good likelihood that I'll find it dirty.
How often do you guys change yours?
What does an air filter for a 996 cost anyway?
I just changed mine and it was pretty dirty. There were also some leaves, etc that had been sucked into the air box. I can't remember what the filter cost but it was probably around $50. One caution, there are two plastic spikes on the bottom of the airbox that fit into some holes to secure it. You can break these off pretty easily trying to get the box in or out.
Tim
I change the pollen and air filters on all my cars at two year intervals. They usually still look OK; but, hey, filters are cheap and piece of mind is a good thing.
Pop hood
Unfasten battery cover and raise a few inches
Unfasten passenger side plastic below windshield and pull cover out and off
Look in towards firewall where the filter is fastened and do your thing
It's a tight fit so do some wiggling to get it into sliding in there with out crumpling the filter
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