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  1. 08-23-2016 06:48 PM #1
    derek.kritz
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    Passenger side radiator fan not turning on

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    I've searched but cannot find any info on this. Sorry for starting a new thread. Not usually my M.O. 3 threads
    In 3 days...
    Anyway, can someone tell me when the passenger side fan is suppose to turn on?? Did my duel pulley install and now I'm thinking I knocked something loose. It is hot here today and I've been running the a/c and it is not turning on. Car is not overheating and acting great, so it's got me wondering. Actually I don't think I've ever seen it on. Maybe a relay? Is there 2 relays for each fan? Thanks guys...


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  2. 03-24-2017 05:27 PM #2
    kelseysautobody
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    Quote Originally Posted by derek.kritz View Post
    I've searched but cannot find any info on this. Sorry for starting a new thread. Not usually my M.O. 3 threads
    In 3 days...
    Anyway, can someone tell me when the passenger side fan is suppose to turn on?? Did my duel pulley install and now I'm thinking I knocked something loose. It is hot here today and I've been running the a/c and it is not turning on. Car is not overheating and acting great, so it's got me wondering. Actually I don't think I've ever seen it on. Maybe a relay? Is there 2 relays for each fan? Thanks guys...
    Did you ever figure anything out on this? In the last day my driver's side fan has stopped working and I can't find any info on a relay or fuse. Scanned codes yesterday and nothing related to this but I scanned today and got "P0691 Cooling Fan 1 control circuit low". My passenger side fan works fine and turns on when the a/c is on as it should.
    2013 S4 S-tronic - 3.47 PR // EPL DP ECU/TCU tune // PLM hx // APR intake // Jokerz Blower // Headers // Ice box // iABED TB // Autotech HPFP // RS7 LPFP
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  3. 01-21-2018 08:02 AM #3
    NohNoh
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    Just had this happen to me on my B8. Check the fuses on the positive terminal under he hood. Pictures below for B8. It’s a 40 amp fuse. Use the next pic for part #.


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  4. 01-21-2018 08:15 AM #4
    Dr GP
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  5. 09-14-2020 11:04 PM #5
    jason bouchard
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    Any other ideas if all the fuses are good?
    2014 S5 6-Speed -dual pulley 187/57.5 ( PR 3.25) | Eurodyne Maestro tune| AWE coldfront HX | AWE coldfront upgraded reservoir | CF ECS tuning Intake pipe with K&N filter | JHM racepipes | ECS 2.5in Valved exhaust | SPEC stage 3+ clutch | Clutchmasters 23lbs AM singlemass flywheel | P3 Gauge w/ trackpack + analog boost sensor | 1 stage colder NGK plugs (BKR9EIX)

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  6. 09-17-2020 12:41 AM #6
    Quattro_Gang
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    Isn't there a computer module on the specific fan itself? Have you tried replacing that? The part is not that expensive.
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