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  1. #1
    Registered Member One Ring
    Join Date
    Apr 07 2016
    AZ Member #
    371492
    Location
    Eureka

    2004 A6 Quattro Avant dash turn signal issues

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    So this is a very interesting issue that I'm dealing with. I have a 04 A6 QUATTRO Avant
    So everything with the turn signals work perfectly. All the lights on the outside of the car are good and the emergency flasher is working great. JUST REPLACED WITH NEW JUST TO MAKE SURE.
    So when I indicate a left turn the relay clicks CORRECTLY, the lights on the outside of the car BLINK CORRECTLY. Also when I indicate a right turn signal light, THE SAME THING, EVERYTHING WORKS.
    The problem is the signal on the dash does not work for right or left, even when i put the flashers on, no dash turn signals work. Everything on the outside of the car indicates what i want it to. However the dash TURN SIGNALS don't show any lights. Now I have a hard time believing that both bulbs have gone bad. They are LED, NOT REALY SOMETHING THAT CAN BE CHANGED. Has anyone ever experiences this? There must be something that sends a reduced amount of power to the LED so it doesn't get to much voltage.

  2. #2
    Established Member Two Rings Jborch8's Avatar
    Join Date
    Apr 30 2012
    AZ Member #
    92774
    My Garage
    Oil stains
    Location
    Issaquah, WA

    Quote Originally Posted by Mullaney10 View Post
    So this is a very interesting issue that I'm dealing with. I have a 04 A6 QUATTRO Avant
    So everything with the turn signals work perfectly. All the lights on the outside of the car are good and the emergency flasher is working great. JUST REPLACED WITH NEW JUST TO MAKE SURE.
    So when I indicate a left turn the relay clicks CORRECTLY, the lights on the outside of the car BLINK CORRECTLY. Also when I indicate a right turn signal light, THE SAME THING, EVERYTHING WORKS.
    The problem is the signal on the dash does not work for right or left, even when i put the flashers on, no dash turn signals work. Everything on the outside of the car indicates what i want it to. However the dash TURN SIGNALS don't show any lights. Now I have a hard time believing that both bulbs have gone bad. They are LED, NOT REALY SOMETHING THAT CAN BE CHANGED. Has anyone ever experiences this? There must be something that sends a reduced amount of power to the LED so it doesn't get to much voltage.
    Any other lights not working on your cluster?
    2005 A4 B6 1.8t Avant - Moro Blue
    Stage 1 APR Tuning / Eibach Pro Springs with Bilstein shocks

  3. #3
    Registered Member One Ring
    Join Date
    Apr 07 2016
    AZ Member #
    371492
    Location
    Eureka

    all other lights on dash work great.

  4. #4
    Veteran Member Four Rings rollerton's Avatar
    Join Date
    Sep 16 2010
    AZ Member #
    64156
    Location
    Central Wash

    Find someone with Vag Com and run the 'output test' in the Instruments (17) control module. It should light up the various circuits in the cluster. If they do not light up then the cluster has a bad diode or resistor or other mysterious thing that makes the LED's blink.
    If they DO light up then you might have a wiring nightmare.
    foley803 : What does an electrical surge sound like? Barking dogs? Watermelons?

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