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These wires are normally for the Brake Pad Wear Sensors which tell the ECU ( or Brain !) that the brake pads are worn low and need replacing. I would say VERY important !!!!

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โˆ™ 2006-07-02 20:31:55
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Q: What is the wire coming off ther front brake pad's on a 2003 VW Passat How important is it?
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