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  1. #1
    Stage 2 Banner Advertiser Four Rings Arin@APR's Avatar
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    Aug 23 2008
    AZ Member #
    32286
    Location
    Auburn, AL

    PSA: Clean your haldex screen.

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    Some of you may have noticed poor haldex performance. If so, check out your haldex screen. It's probably clogged. We've seen many. Here are two customer supplied images.

    Clean it!

    Suggestion: Check every 10-15K.
    GoAPR.com | Facebook | YouTube | Twitter | Instagram
    Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
    Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

  2. #2
    Established Member Two Rings
    Join Date
    Jan 02 2009
    AZ Member #
    36974
    Location
    Hainesport, NJ

    Yikes, I know what I'm doing this weekend.

    Sent from my SM-G955U using Audizine mobile app

  3. #3
    Established Member Two Rings BrianVan's Avatar
    Join Date
    Apr 03 2015
    AZ Member #
    324852
    Location
    Naperville, IL

    I'd love to clean my too...if I knew what the heck it was, did and located. Looks easily unbolted to be reviewed.

  4. #4
    Established Member Two Rings
    Join Date
    Nov 03 2017
    AZ Member #
    409300
    Location
    Irvine/CA

    Quote Originally Posted by Arin@APR View Post


    Some of you may have noticed poor haldex performance. If so, check out your haldex screen. It's probably clogged. We've seen many. Here are two customer supplied images.

    Clean it!

    Suggestion: Check every 10-15K.
    How do access the screen? Is it as easy as just unbolting the Haldex pump? Or do you have to disassemble the pump once it's off the car?
    2018 Audi S3 Premium Plus
    Navarra Blue Metallic/Magma Red - Technology, Dynamic, S Sport, Black Optic, Resonator Delete

  5. #5
    Stage 2 Banner Advertiser Four Rings Arin@APR's Avatar
    Join Date
    Aug 23 2008
    AZ Member #
    32286
    Location
    Auburn, AL

    GoAPR.com | Facebook | YouTube | Twitter | Instagram
    Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
    Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

  6. #6
    Established Member Two Rings volyer's Avatar
    Join Date
    Sep 09 2016
    AZ Member #
    380520
    My Garage
    8v A3, Porsche 981S, MB GLK350
    Location
    Tennessee

    Thanks for the PSA and the DIY thread link

  7. #7
    Established Member Two Rings
    Join Date
    Nov 03 2017
    AZ Member #
    409300
    Location
    Irvine/CA

    Quote Originally Posted by volyer View Post
    Thanks for the PSA and the DIY thread link
    Ditto!
    2018 Audi S3 Premium Plus
    Navarra Blue Metallic/Magma Red - Technology, Dynamic, S Sport, Black Optic, Resonator Delete

  8. #8
    Established Member Two Rings
    Join Date
    Mar 16 2017
    AZ Member #
    395641
    My Garage
    2016 Audi S3 Prestige
    Location
    Bridgeville, PA

    Yikes. Will be having mine serviced soon. Thanks for the post Arin.

  9. #9
    Veteran Member Four Rings
    Join Date
    Nov 13 2009
    AZ Member #
    50649
    Location
    the OC

    any list out there to see all the possible maintenance we should be aware of other than manufacturing recommendations?

  10. #10
    Senior Member Two Rings bakedcorn's Avatar
    Join Date
    Jul 27 2015
    AZ Member #
    345284
    My Garage
    2016 White A3 Teknic S-Line with 19's
    Location
    Richmond Hill, Ontario

    Ok so what is the actual source of the problem? I mean there shouldnít be any bits or pieces of fragments or sludge build up in this unit imho. Is Audi cutting corners as Iím certain this Haldex system is used elsewhere.


    Sent from my iPhone using Audizine
    His - 2015 Audi S3 Technik Florett Silver Metallic on 19's
    Hers - 2016 Audi A3 Technik S-Line Glacier White Metallic on 19's

    "I have nightmares that I'm going to wake up, and everyone's driving a Prius and living in a condo, and we're all getting health insurance".
    - Kid Rock

  11. #11
    Stage 2 Banner Advertiser Four Rings Arin@APR's Avatar
    Join Date
    Aug 23 2008
    AZ Member #
    32286
    Location
    Auburn, AL

    The clutches are a paper based material.
    GoAPR.com | Facebook | YouTube | Twitter | Instagram
    Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
    Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

  12. #12
    Established Member Two Rings
    Join Date
    Mar 16 2017
    AZ Member #
    395641
    My Garage
    2016 Audi S3 Prestige
    Location
    Bridgeville, PA

    Quote Originally Posted by Arin@APR View Post
    The clutches are a paper based material.
    APR making an upgraded haldex option next?

  13. #13
    Stage 2 Banner Advertiser Four Rings Arin@APR's Avatar
    Join Date
    Aug 23 2008
    AZ Member #
    32286
    Location
    Auburn, AL

    No plans. But FWIW, paper is the norm for wet clutches.
    GoAPR.com | Facebook | YouTube | Twitter | Instagram
    Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
    Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

  14. #14
    Veteran Member Four Rings MikTip's Avatar
    Join Date
    Dec 25 2004
    AZ Member #
    4604
    Location
    Earth

    Awesome DIY post Arin! Thanks!
    2015 S3

    2004 B6 A4 USP

  15. #15
    Established Member Two Rings
    Join Date
    Mar 16 2017
    AZ Member #
    395641
    My Garage
    2016 Audi S3 Prestige
    Location
    Bridgeville, PA

    Quote Originally Posted by Arin@APR View Post
    No plans. But FWIW, paper is the norm for wet clutches.
    Wishful thinking. Thanks for the post though, I will have mine serviced soon.

  16. #16
    Senior Member Three Rings 1killera4's Avatar
    Join Date
    Mar 18 2014
    AZ Member #
    158620
    Location
    Dunedin Florida

    I wonder what a VW Stealership would charge for this?
    2015 A3 2.0T

  17. #17
    Veteran Member Four Rings MikTip's Avatar
    Join Date
    Dec 25 2004
    AZ Member #
    4604
    Location
    Earth

    Quote Originally Posted by 1killera4 View Post
    I wonder what a VW Stealership would charge for this?
    Nothing in their books that tell'm to do this...

    Any issues they change the entire Haldex assy...$3000.

    Labor is $160 an hour...
    2015 S3

    2004 B6 A4 USP

  18. #18
    Senior Member Two Rings bakedcorn's Avatar
    Join Date
    Jul 27 2015
    AZ Member #
    345284
    My Garage
    2016 White A3 Teknic S-Line with 19's
    Location
    Richmond Hill, Ontario

    The Audi dealership we purchased from charges CAD 240 for the work


    Sent from my iPhone using Audizine
    His - 2015 Audi S3 Technik Florett Silver Metallic on 19's
    Hers - 2016 Audi A3 Technik S-Line Glacier White Metallic on 19's

    "I have nightmares that I'm going to wake up, and everyone's driving a Prius and living in a condo, and we're all getting health insurance".
    - Kid Rock

  19. #19
    Active Member One Ring
    Join Date
    Sep 20 2011
    AZ Member #
    81499
    Location
    da world

    Any idea if Vag com is needed if I decide to just replace the pump. They donít seem to be so bad in price. Just not sure if any type of Haldex adaptation need to be run.


    Sent from my iPhone using Tapatalk

  20. #20
    Veteran Member Four Rings MikTip's Avatar
    Join Date
    Dec 25 2004
    AZ Member #
    4604
    Location
    Earth

    Quote Originally Posted by skevovr6 View Post
    Any idea if Vag com is needed if I decide to just replace the pump. They donít seem to be so bad in price. Just not sure if any type of Haldex adaptation need to be run.


    Sent from my iPhone using Tapatalk
    The pump I would say no...the electronic control box for the Haldex...probably so. Also to clear codes...

    Chanel 22 has output test function..

    https://www.audizine.com/forum/showt...1#post12428656

    United MotorSports offers a tune which included Engine+DSG+Haldex.
    Last edited by MikTip; 11-12-2018 at 03:28 PM.
    2015 S3

    2004 B6 A4 USP

  21. #21
    Veteran Member Four Rings MikTip's Avatar
    Join Date
    Dec 25 2004
    AZ Member #
    4604
    Location
    Earth

    If anyone is really interested...

    Heres whats happening overseas...

    http://www.tvsengineering.nl/en/gearbox.html
    2015 S3

    2004 B6 A4 USP

  22. #22
    Active Member One Ring
    Join Date
    Sep 20 2011
    AZ Member #
    81499
    Location
    da world

    Thanks man

  23. #23
    Registered Member One Ring sj9ninety's Avatar
    Join Date
    Nov 03 2018
    AZ Member #
    430301
    Location
    Fairfax, VA

    Thanks for this


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  24. #24
    Established Member Two Rings
    Join Date
    Jan 02 2009
    AZ Member #
    36974
    Location
    Hainesport, NJ

    So, based on this thread I just performed the haldex service. I did exactly what was laid out in the vwvortex thread linked by Arin. I did not replace the two bolts or o-rings on the haldex pump. Here's to hoping that wasn't a mistake.

    Okay, so, I purchased my 2016 S3 from the original owner and I do not think this was ever done but I will confirm that and post an update if it was.

    Saying all that, my fluid was nowhere near as bad as the pictures posted by Arin. My car now has over 42,000 miles. The prior owner also took it to a track day that was sponsored by NGP. He never launched it and neither have I. Maybe that is what has preserved my haldex unit so far? Anyway, here is a picture of the fluid taken during the middle of the draining process.

    I did not get a picture of the filter but again, it was not nearly as bad as the pictures posted above. I had just one minor blob of black sludge on the bottom of one side or the mesh filter and the rest of it was covered in a fine, thin, grey, film. I cleaned it all off and the mesh looked shiny and good to go.

    Also, here is my haldex sticker info. Looks like an early 2015 model.

    Hope my experience can help someone. Feel free to PM me with any questions.
    20181113_195226.jpeg20181113_195303.jpeg20181113_195223.jpeg

    Sent from my SM-G955U using Audizine mobile app

  25. #25
    Established Member Two Rings
    Join Date
    Jan 07 2018
    AZ Member #
    412141
    Location
    Stapleton, CO

    My S3 is a 15í model and I just broke 18k miles. This thread is making me want to change oil and clean that filter.

    Launched only 3 times and never tracked.. in for results
    Full UM Tune
    The good bolt-ons
    MPI

    - Founder of https://www.opendoorfranchises.com/
    ^franchise firm(like real estate but for franchises)

  26. #26
    Established Member Two Rings
    Join Date
    Jan 02 2009
    AZ Member #
    36974
    Location
    Hainesport, NJ

    Just a quick update. I contacted the original owner and he confirmed that the haldex was never serviced. Also, my rear diff / haldex unit is a "k" stamped unit. 20181113_195245.jpeg

    Sent from my SM-G955U using Audizine mobile app



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