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  1. #1
    Established Member Two Rings
    Join Date
    Mar 09 2007
    AZ Member #
    16262
    My Garage
    03 A4 1.8T
    Location
    Roanoke, VA

    No turn signals, horn, wipers, windows dont work - Please help!!

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    Good morning all,
    I did some research as quickly as I could since the issues just happened this morning and it could be the ignition switch or bad battery (new battery installed little over a year ago, so I sincerely doubt that it is the battery unless the alternator is going bad, will have it tested at lunch). This is on a 2003 A4 1.8t FWD.

    Unlocked the car normally this morning with the fob (fob stopped working after all of this happened - does not lock or unlock)
    Additional controls not working:
    turn signals, horn, high beams, windshield wipers, windows, the radio stays on once I turn of the car

    No water under the battery and as much as I could see no water under the ECU, however the carpet where the gas pedal is slightly wet.

    Low beams and fog lights work.

    Forgot to mention, the ABS and Traction control light turned on as well.

    Please point me in the right directions if you can. Your help is greatly appreciated.

    Z
    Zlaja

  2. #2
    Registered Member Four Rings EuroxS4's Avatar
    Join Date
    Jan 24 2010
    AZ Member #
    53856
    My Garage
    2003 Atlas Grey A4 Avant 1.8T 6speed manual quattro,2002 GSXR 600
    Location
    Paramus,NJ USA

    Sounds like a bad J519 or a flooded J393.I would pull the carpet up on the driver front see if you have water in there.Chances are yes if you saw water.My guess is water intrusion into vehicle from ebox cover.Most liekly burned up J393.
    VW/Audi Immobilizer removal and immobilizer adapting solutions for any and all VAG Vehicles,Odometer matching, SKC/Pin retrieval services.Located in Northern NJ.For inquries pm for details.

  3. #3
    Established Member Two Rings
    Join Date
    Jun 09 2016
    AZ Member #
    374465
    Location
    u.k

    I ended up scrapping the car when this happened but I found the part in the steering column could have been the culprit. The part that the wiper stalk etc plug into.
    This is the part here but you must match part numbers.
    https://rover.ebay.com/rover/0/0/0?m...2F323490766444

    I wish our had found that out before scrapping the car as it was a quattro now I'm stuck with a fwd

    I lost high beam, wipers, headlight flash, driver information system, indicators, radio playing up, it affected so many things.

    I hope you get it sorted

    Sent from my ANE-LX1 using Tapatalk

  4. #4
    Established Member Two Rings
    Join Date
    Mar 09 2007
    AZ Member #
    16262
    My Garage
    03 A4 1.8T
    Location
    Roanoke, VA

    Hey guys, my comfort control module got fried due to the water leak. It is currently being fixed. Where could this water be coming from. I try to keep my two drains in the front clear of debris. The car does not have a sun roof. Is there another place where the water could be leaking into the cabin and causing this? Thanks for all of your help!
    Zlaja

  5. #5
    Veteran Member Four Rings old guy's Avatar
    Join Date
    Dec 28 2006
    AZ Member #
    14483
    My Garage
    '03 A4, '13 A5, '18 MB-GLA
    Location
    Western Maryland

    Usually it is from a clogged drain underneath the brake booster. It can also leak in from the back side of the ECM box, but that generally causes a multitude of other issues as well as a wet floor.
    A4 Motoza tuned Frankenturbo F21L / Bosch 550's / 3" MAF / TyrolSport SMIC / 034 HFC / TT 2.5" DP / Borla / Eibach ProKit / Koni Yellows / H-Sport F&R Bars / TyrolSport Brake Stiffeners / HyperShift Short Shifter / Podi
    A5 Mods to come: Little stuff so far. 20/25mm spacers / H&R OE Sport springs / 35% tint / Neuspeed Power Module / black window trim / RS grille.



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