Facet 9.3170 Ignition Knock (Detonation) Sensor - Front Left or Rear Right

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Facet 9.3170 Ignition Knock (Detonation) Sensor - Front Left or Rear Right

Brand	Facet 9.3170
Position	Front Left
Fits	Audi and Volkswagen · 121 vehicles

Knock sensor. Monitors engine detonation for precise ignition control.

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Facet 9.3170 Knock Sensor for Audi and Volkswagen

Facet 9.3170 is an ignition knock (detonation) sensor for select Audi and Volkswagen applications. It is used on a wide range of Audi A8 Quattro, S4, S6, S7, S8, RS4, RS5, RS7, R8, Q7, and Volkswagen Touareg models with cylinder-specific knock detection requirements.

Key Features

Facet 9.3170 ignition knock sensor for emission control and engine management systems
Black sensor body with 345 mm harness on listed applications
Direct fit coverage for cylinder 1, 2, 5, and 6 knock sensor locations, depending on vehicle
Fits front left and rear right positions on select Audi S4 and Allroad Quattro applications
Built for Audi A8 Quattro, S4, S6, S7, S8, RS4, RS5, RS7, R8, Q7, and Volkswagen Touareg fitments

Detailed Description

This Facet knock sensor is specified for vehicles that rely on accurate detonation detection to help the engine control module manage ignition timing. The 9.3170 application coverage includes multiple Audi V8 and performance models, including 2004-2009 Audi S4, 2007-2016 Audi A8 Quattro, and 2008-2015 Audi R8, along with select Volkswagen Touareg fitments. For buyers searching for a Facet 9.3170 knock sensor, this part number matches the listed cylinder and chassis-specific applications shown below.

This part cross-references no additional part numbers in the provided data.

What It Helps Address

Knock sensor fault codes
Audible or detected engine detonation events
Check engine light related to knock sensor circuits
Incorrect ignition timing control from a failed sensor signal
Driveability issues tied to cylinder-specific knock detection

Installation Notes

Verify the exact year, model, cylinder location, and chassis/VIN break before ordering. Fitment varies by engine bank and position on several Audi applications, including cylinder 1 and 2 or cylinder 5 and 6 coverage. On select 2004-2009 Audi S4 and 2004-2005 Audi Allroad Quattro applications, the sensor is listed for front left or rear right positions with a 345 mm harness.

Quality Assurance

Facet manufactures this sensor for emission control and engine management applications. Confirm the part number 9.3170 against the vehicle listing to ensure the correct knock sensor for your Audi or Volkswagen application.

This part fits 121 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Submodel	Liters	Cylinders	Position	Notes
2016	Audi	A8 Quattro	L	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2016	Audi	RS7	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2016	Audi	RS7	Performance	—	—	N/A	Cylinder 5 and 6 knock sensor detection.
2016	Audi	S6	Premium Plus	—	—	N/A	Cylinder 5 and 6 knock sensor detection.
2016	Audi	S6	Prestige	—	—	N/A	Cylinder 5 and 6 knock sensor detection.
2016	Audi	S7	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2016	Audi	S8	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2015	Audi	A8 Quattro	L	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2015	Audi	A8 Quattro	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2015	Audi	R8	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2015	Audi	R8	Spyder	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2015	Audi	RS5	Base	4.2L	V8	N/A	Fits cylinders 5 and 6, color: black.
2015	Audi	RS5	Cabriolet	—	—	N/A	Fits cylinders 5 and 6, color: black.
2015	Audi	RS7	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2015	Audi	S6	Base	—	—	N/A	Cylinder 5 and 6 knock sensor detection.
2015	Audi	S7	Base	—	—	N/A	Cylinder 5 and 6 knock sensor detection.
2015	Audi	S8	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2014	Audi	A8 Quattro	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2014	Audi	A8 Quattro	L	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2014	Audi	R8	Spyder	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2014	Audi	R8	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2014	Audi	RS5	Base	4.2L	V8	N/A	Fits cylinders 5 and 6, color: black.
2014	Audi	RS5	Cabriolet	—	—	N/A	Fits cylinders 5 and 6, color: black.
2014	Audi	RS7	Base	—	—	N/A	Cylinder 5 and 6 knock sensor detection.
2014	Audi	S6	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2014	Audi	S7	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2014	Audi	S8	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2013	Audi	A8 Quattro	L	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2013	Audi	A8 Quattro	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2013	Audi	RS5	Base	4.2L	V8	N/A	Fits cylinders 5 and 6, color: black.
2013	Audi	S6	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2013	Audi	S7	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2013	Audi	S8	Base	4.0L	V8	N/A	Cylinder 5 and 6 knock sensor detection.
2012	Audi	A8 Quattro	L	—	—	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2012	Audi	A8 Quattro	Base	—	—	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2012	Audi	R8	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2012	Audi	R8	Spyder	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2012	Audi	S5	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2011	Audi	A6 Quattro	Base	4.2L	V8	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2011	Audi	A8 Quattro	L	—	—	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2011	Audi	A8 Quattro	Base	—	—	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2011	Audi	R8	Spyder	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2011	Audi	R8	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2011	Audi	S5	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2010	Audi	A6 Quattro	Base	4.2L	V8	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2010	Audi	A8 Quattro	Base	4.2L	V8	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2010	Audi	A8 Quattro	L	—	—	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2010	Audi	Q7	Prestige	—	—	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2010	Audi	R8	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2010	Audi	S5	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2009	Audi	A6 Quattro	Base	4.2L	V8	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2009	Audi	A8 Quattro	L	4.2L	V8	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2009	Audi	A8 Quattro	Base	—	—	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2009	Audi	Q7	Premium	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2009	Audi	R8	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2009	Audi	S4	Cabriolet	—	—	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2009	Audi	S4	Cabriolet	—	—	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2009	Audi	S5	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2009	Volkswagen	Touareg	Base	4.2L	V8	N/A	Ignition Knock Sensor with black color and 345mm harness.
2008	Audi	A6 Quattro	Base	4.2L	V8	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2008	Audi	A8 Quattro	L	4.2L	V8	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2008	Audi	A8 Quattro	Base	—	—	N/A	Color-Black; 345mm Harness; Cylinder 1,2,5,6; For Cyl.1,2,5,6
2008	Audi	Q7	Premium	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2008	Audi	R8	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2008	Audi	RS4	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2008	Audi	RS4	Cabriolet	—	—	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2008	Audi	S4	Cabriolet	4.2L	V8	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2008	Audi	S4	Cabriolet	4.2L	V8	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2008	Audi	S4	Base	4.2L	V8	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2008	Audi	S4	Avant	—	—	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2008	Audi	S4	Base	4.2L	V8	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2008	Audi	S4	Avant	—	—	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2008	Audi	S5	Base	4.2L	V8	N/A	Ignition Knock (Detonation) Sensor fits cylinders 1, 2, 5, and 6.
2008	Volkswagen	Touareg	Base	4.2L	V8	N/A	Ignition Knock Sensor with black color and 345mm harness.
2007	Audi	A6 Quattro	Base	4.2L	V8	N/A	Black color, 345mm harness, fits cylinders 5 and 6.
2007	Audi	A6 Quattro	Base	4.2L	V8	N/A	Color-Black; 345mm Harness; Cylinder 1,2; For Cyl.1,2
2007	Audi	A8 Quattro	Base	—	—	N/A	Black color, 345mm harness, fits cylinders 5 and 6.
2007	Audi	A8 Quattro	L	4.2L	V8	N/A	Color-Black; 345mm Harness; Cylinder 1,2; For Cyl.1,2
2007	Audi	A8 Quattro	L	4.2L	V8	N/A	Black color, 345mm harness, fits cylinders 5 and 6.
2007	Audi	A8 Quattro	Base	—	—	N/A	Color-Black; 345mm Harness; Cylinder 1,2; For Cyl.1,2
2007	Audi	Q7	Base	4.2L	V8	N/A	Color-Black; Cylinder 1,2; For Cyl.1,2; To Chassis/VIN 4L-7-015 000
2007	Audi	Q7	Base	4.2L	V8	N/A	Color-Black; Cylinder 5,6; For Cyl.5,6; To Chassis/VIN 4L-7-015 000
2007	Audi	Q7	Premium	4.2L	V8	N/A	Black knock sensor for cylinder 5 and 6, compatible with chassis/VIN 4L-7-015 001.
2007	Audi	Q7	Base	4.2L	V8	N/A	Black knock sensor for cylinder 5 and 6, compatible with chassis/VIN 4L-7-015 001.
2007	Audi	Q7	Premium	4.2L	V8	N/A	Color-Black; Cylinder 5,6; For Cyl.5,6; To Chassis/VIN 4L-7-015 000
2007	Audi	Q7	Premium	4.2L	V8	N/A	Color-Black; Cylinder 1,2; For Cyl.1,2; From Chassis/VIN 4L-7-015 001
2007	Audi	Q7	Base	4.2L	V8	N/A	Color-Black; Cylinder 1,2; For Cyl.1,2; From Chassis/VIN 4L-7-015 001
2007	Audi	Q7	Premium	4.2L	V8	N/A	Color-Black; Cylinder 1,2; For Cyl.1,2; To Chassis/VIN 4L-7-015 000
2007	Audi	RS4	Base	4.2L	V8	N/A	Color-Black; Cylinder 1,2; For Cyl.1,2
2007	Audi	RS4	Base	4.2L	V8	N/A	Fits cylinders 5 and 6, color: black.
2007	Audi	S4	Base	4.2L	V8	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2007	Audi	S4	Cabriolet	4.2L	V8	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2007	Audi	S4	Base	4.2L	V8	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2007	Audi	S4	Cabriolet	4.2L	V8	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2007	Audi	S4	Avant	—	—	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2007	Audi	S4	Avant	—	—	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2007	Volkswagen	Touareg	Base	4.2L	V8	N/A	Ignition Knock Sensor with black color and 345mm harness.
2006	Audi	A6 Quattro	Base	4.2L	V8	N/A	Black color.
2006	Audi	S4	Base	4.2L	V8	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2006	Audi	S4	Base	4.2L	V8	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2006	Audi	S4	Cabriolet	—	—	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2006	Audi	S4	Avant	—	—	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2006	Audi	S4	Cabriolet	—	—	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2006	Audi	S4	Avant	—	—	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2005	Audi	A6 Quattro	Base	4.2L	V8	N/A	Black color.
2005	Audi	Allroad Quattro	Base	4.2L	V8	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2005	Audi	Allroad Quattro	Base	4.2L	V8	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2005	Audi	S4	Base	4.2L	V8	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2005	Audi	S4	Cabriolet	—	—	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2005	Audi	S4	Avant	—	—	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2005	Audi	S4	Avant	—	—	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2005	Audi	S4	Base	4.2L	V8	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2005	Audi	S4	Cabriolet	—	—	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2004	Audi	Allroad Quattro	Base	4.2L	V8	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2004	Audi	Allroad Quattro	Base	4.2L	V8	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2004	Audi	S4	Base	4.2L	V8	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2004	Audi	S4	Base	4.2L	V8	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2004	Audi	S4	Cabriolet	—	—	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2004	Audi	S4	Avant	—	—	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
2004	Audi	S4	Avant	—	—	Front Left	Ignition Knock Sensor with black color and 345mm harness.
2004	Audi	S4	Cabriolet	—	—	Rear Right	Ignition Knock Sensor with black color and 345mm harness.
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