Heavy Duty 4B0927803C Front ABS Wheel Speed Sensor Fit FAW Audi A6L On the FAW Audi A6L (C5, 2000–2005) the front wheel-speed pick-ups are old-school passive inductive coils with a long lead tucked along the steering knuckle. When the coil drifts, the rectangular plug sweats inside the wheel arch, or the tip gets caked in brake-dust and road grit, you get the ABS and traction lamps, a speedo that hesitates at low speed, and a wheel-speed code that clears on scan but returns