Buy OEM Audi Part # 07L905377A (079905376, 07L-905-377-A, 79905376). Ignition Knock (Detonation) Sensor. 5.2 LITER, white. A8, S8; 5.2L; Cyl.#6-8. RS 5; Cylinders 1, 2. S6; Cyl.#6-8. White. Knock Sensor -

Ignition Knock (Detonation) Sensor.
Cylinder 1,2. Cylinder 6,7,8. Ignition Knock (Detonation) Sensor.

Ignition Knock (Detonation) Sensor

Fits RS5, S6, S8

5.2 LITER, white. A8, S8; 5.2L; Cyl.#6-8. RS 5; Cylinders 1, 2. S6; Cyl.#6-8. White.
Knock Sensor - Repair or Replace
A failed Knock Sensor will often have no noticeable symptoms beyond a check engine light or engine ping or knock, 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.