8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHNoisy internal ventilation/heater motor/fan
Leading reported evidence
Adjust hvac settings
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.
Suggestion
Try adjusting the HVAC settings to see if increasing fan speed influences the noise.
Leading evidence: 'Adjust hvac settings' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust hvac settings' (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 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.
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.
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Suggestion
It is worth checking for debris before you you replace it.
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 expect you can get the fan working just by using WD40 on the bearing.
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.
8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Porsche Club GB: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Hi all,
I've done a thread search and looked at 996 technical articles but I cannot find anything about a noisy internal ventilation motor/fan. Its getting quite intrusive now, even at low fan speed settings. Is checking/changing this simple or involved? Would apprecoate some guidance.
Many thanks, Simon
It might be debris in the fan blades, which I have heard of happening on more than one occasion. Take out the pollen filter and take a look in the opening. You might find something stuck in the fan. Other than that, if you want the instructions on how to remove the fan, drop me a PM with your email address a,d I'll extract them from the workshop manual.
Actually, I'm so sorry. I did a google search and found out its very simple on Pelican Parts. Its mainly a question of getting the correct part. There is a difference between 1998 and 1999 MYs. I have 1998.
Hi Simon
the part No is 996 572 903 03 but Porsche will want £450+vat. [
]
You should be able to get one of ebay for £50/60
or look here give them a call as it states out of stock
https://www.euspares.co.uk/parts-catalog/blower-parts-10449/porsche/911/911-996/8696-3-4-carrera
You could also phone 9-Apart on 01706 824053 or try
https://www.douglasvalley.co.uk/prestige-parts/porsche-boxster-heater-blower-motor-fan-mk1-1997-+-+-1999-year/
good luck
Andy
Cheers Andy. EU spares currently out of stock. Will try clearing the pollen filter and pulling the fan out for inspection. It looks very straightforward....then will give Douglas Valley a go.
Cheers chaps!
It is worth checking for debris before you you replace it. Try adjusting the HVAC settings to see if increasing fan speed influences the noise.
It's quite straight forward to remove, but you need to remove the glove box to get access to it. You can find some steps here:
https://www.pelicanparts.com/techarticles/Porsche-996-997-Carrera/103-ELEC-HVAC_Motor/103-ELEC-HVAC_Motor.htm
I had a similar issue a few years ago & found some insulation material had peeled away from the flap above the HVAC motor & below the pollen filter. Removing the debris fixed the issue.
My fan went noisy and then quit a couple of years ago , I got a replacement from Euro Car parts , it was the same make as the original , the only difference was the connection for the loom ( different plug) this came from the OPC , I brought 2 just in case , delivered for just under a £10.00 , easy fit , you just have to get up personal with the passenger footwell ! My car is a 99my.
75pno
Mine went noisy last year until it stopped completely.
The fan housing can be dropped passenger side - only two screws hold it in place. You may need to take a third out to pull lower dash for space and all has to be done on your back.
I expect you can get the fan working just by using WD40 on the bearing. Mine is working fine now. Note the fan is similar to VW/Seat/Skoda part.
This is a source reference. Confirm exact model applicability in the original material.
