Heavy Duty 4M0927807C Rear ABS Wheel Speed Sensor Fit Audi Q7 On the VW Touareg CR7 (2018+) and Audi Q7 4M (2016+), a failing rear wheel speed sensor doesn’t just light the ABS lamp — it can trip ESC, disable traction control, upset the automatic gearbox’s wheel-speed logic, and set C0xxx rear-wheel codes that clear on scan but return on the next damp morning. This is the hub-mounted active sensor 4M0927807C (replaces 4M0927807B, later 4M0927807D): no cable, just the 2-pin