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Ignition Knock (Detonation) Sensor. 345mm Harness. Color-Black. Cylinder 1,2. Cylinder 1,2,5,6. Cylinder 5,6. For Cyl.1,2,5,6. From Chassis/VIN 4L-7-015 001. Ignition Knock (Detonation) Sensor. To Chassis/VIN 4L-7-015 000. Ignition Knock (Detonation) Sensor
Knock Sensor - Repair or ReplaceA failed Knock Sensor will often have no noticeable symptoms beyond a check engine light or engine ping or knock, but it does cause your 2009 Audi S4 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Audi genuine parts.
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6972 US Hwy. 72 W., Huntsville, AL, 35806-1726