Buy OEM 2011 Audi Part # 1K0998262S. Oxygen Sensor (Rear). Oxygen Sensor - Repair or Replace A failed Oxygen Sensor will often have no noticeable symptoms beyond a check

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

Oxygen Sensor

Fits A6, A8, Q7, RS5, S5, S6, S8

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 2011 Audi to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Audi genuine parts.