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Thread: Front brake pad sensor wiring

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  1. Front brake pad sensor wiring 
    #1
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    Does anyone know where the front pad warning wiring goes to? It seems to disappear into the engine bay....

    My warning light comes on (turning left usually triggers it). Front pads are fine, I've replaced the sensor, and replaced the rear pads that were low-ish. I can only surmise that there is a dodgy connector or break in the wiring harness. Just need to find the other end to test.
    All hints and tips gratefully received.
     
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  2. Re: Front brake pad sensor wiring 
    #2
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    When Audi did my rear pads couple months ago they said that I had corrosion on the front wiring harness for the pad wear sensors and ABS sensors, they listed a repair harness for about 70. I will have a look through my paperwork later to see if I can find it. In my case it wasn't a corroded harness they just left one of the sensors unplugged.

    The sensors appear to be a loop of wire that breaks connection when worn through. So try a known bit of good wire and plug it into sensor plug to see if fault goes.

    I had a slight lip on my discs and it was enough to wear away the wire and trigger the fault. I replaced my pads with Bosch ones from eurocarparts and they came with new pad wear sensor.
    2012 A6 Avant SE 3.0TDi Multitronic
     
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  3. Re: Front brake pad sensor wiring 
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    I've already fitted a new sensor (although it turns out there was nothing wrong with the old). The problem is with the wiring that the sensor plugs into that disappears into the engine bay. I need to find the other end of it to be able to test....anyone know where it goes?
     
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  4. Re: Front brake pad sensor wiring 
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    Hello . I replaced that wiring on my car recently ... te repair harnest for my car was . 4g0972251e

    I you have any questions just ask
     
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  5. Re: Front brake pad sensor wiring 
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