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Audi A3 8L 1.9 TDI 110km: Dipped Beam Headlights Not Working After Bulb & Switch Replacement

wyder666555 7782 4
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  • #1 16342755
    wyder666555
    Level 9  
    Posts: 22
    Rate: 3
    Hello, I lost my incandescent bulbs, the next day I changed the bulbs to different ones, the lights still did not work, the next day I bought another, they still do not work. Road and position lights, they function normally, I checked the fuse 3 times, manually and with a multimeter, I turned the light switch on, there was no burning, no smoke. I installed the second switch and no change, I still don't have dipped headlights. I changed the switch the next day from a colleague's Passat, it works with him and is functional for me, there are still no dipped headlights. I don't know what may be wrong anymore. Is there a relay for dipped headlights in a3 8L? to have dipped-beam I changed the pins from the long lights. I just don't have power at the low beam.
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  • #2 16343319
    epicktroll
    Level 8  
    Posts: 16
    Help: 1
    and check the transition between the switch and the relay maybe something does not connect and then from the relay to the lamps :D
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  • #3 16343554
    wyder666555
    Level 9  
    Posts: 22
    Rate: 3
    Exactly, but does this version have a light relay, because I'm not sure, I know I have two dice at the bulkhead wall, but is any of the technical responsible? according to the instructions probably not. But I can be wrong.
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  • #4 16344180
    grala1
    VAG group specialist
    Posts: 9812
    Help: 1495
    Rate: 5036
    There is no light relay.
    Where did you change these wires?
    Is the power supply for the low beam coming out of the switch?
    Write if you have a plus with the ignition on and the switch turned on the lights on:
    - pins 1 of the light switch (power supply for the switch)
    - pins No. 4 of the light switch (driving beam)
    - pins no. 6 of the light switch (power supply for the dipped beam)
    - fuse No. 20 (power supply for the right low beam)
    - fuse No. 21 (power supply for the left low beam bulb)

    It's best to check the power supply with a light bulb, not a meter.
    The switch may be good but you have a break in the circuit between the switch and the fuses.
  • #5 16345812
    wyder666555
    Level 9  
    Posts: 22
    Rate: 3
    I swapped the plus wires with long lights and put them into lenses with short lights to have light, I have good fuses. I will check the pins in a few days, but the power supply was not on the multimeter.
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