Buy OEM Audi Part # 1K0998262L. Oxygen Sensor (Rear). Oxygen Sensor - Repair or Replace A failed Oxygen Sensor will often have no noticeable symptoms beyond a check

Sensor. Oxygen. (O2) KT. Ft. Valve cover gasket.
Cylinder 1,2,3. Cylinder 1,2,3,4,5. Cylinder 6,7,8. Oxygen Sensor.

Oxygen Sensor

Oxygen Sensor - Repair or Replace
A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause your Audi to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Audi genuine parts.