HomeEmission Control > SensorsFacet 9.3186 Ignition Knock (Detonation) Sensor - Inner
Part #: 9.3186

Facet 9.3186 Ignition Knock (Detonation) Sensor - Inner

Inner
⚙️ 23 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, A8 Quattro and R8
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Reliable Ignition Knock Sensor for Audi A8 Quattro and R8

The Facet 9.3186 ignition knock sensor is designed to detect engine detonation and optimize performance for Audi A8 Quattro and R8 models. This sensor helps maintain engine efficiency by providing accurate knock detection signals to the engine control unit.

  • Compatible with Audi A8 Quattro and Audi R8 models
  • Part number 9.3186 ensures precise fit and function
  • Monitors engine knock to prevent detonation damage
  • Durable construction for consistent sensor performance
  • Direct replacement sensor for emission control systems

Product Details and Functionality

The Facet 9.3186 ignition knock sensor is an essential component in the emission control system of Audi A8 Quattro and R8 vehicles. It detects abnormal combustion events, commonly known as engine knock or detonation, and sends signals to the engine control unit (ECU). This feedback allows the ECU to adjust ignition timing and fuel delivery, protecting the engine from damage and improving fuel efficiency. The sensor is engineered to meet OEM specifications, ensuring reliable operation and compatibility with the vehicle’s existing systems.

Common Issues Addressed by the Knock Sensor

  • Engine knocking or pinging noises during acceleration
  • Reduced engine performance and fuel efficiency
  • Check engine light triggered by knock sensor fault codes
  • Potential engine damage from uncontrolled detonation
  • Irregular ignition timing causing rough idling or hesitation

Installation Notes and Tips

When installing the Facet 9.3186 ignition knock sensor on Audi A8 Quattro or R8 models, ensure the sensor is mounted securely to the engine block to accurately detect vibrations. Use the correct torque specifications to avoid sensor damage. It is recommended to inspect the wiring harness and connectors for corrosion or damage before installation. Proper installation will help maintain sensor accuracy and engine performance.

Quality Assurance and Warranty Information

Facet manufactures the 9.3186 ignition knock sensor to meet strict quality standards, ensuring durability and reliable operation in emission control applications. While specific warranty details may vary, Facet products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.

This part fits 23 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2016AudiA8 QuattroL W12InnerOrange color, fits cylinders 1-6.
2015AudiA8 QuattroL W12InnerOrange color, fits cylinders 1-6.
2015AudiR8Spyder5.2LV10N/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2015AudiR8Base5.2LV10N/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2015AudiR8PlusN/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2014AudiA8 QuattroL W126.3LW12InnerOrange color, fits cylinders 1-6.
2014AudiR8PlusN/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2014AudiR8Spyder5.2LV10N/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2014AudiR8Base5.2LV10N/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2013AudiA8 QuattroL W126.3LW12InnerOrange color, fits cylinders 1-6.
2012AudiA8 QuattroL W126.3LW12InnerOrange color, fits cylinders 1-6.
2012AudiR8Spyder5.2LV10N/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2012AudiR8Base5.2LV10N/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2012AudiR8GTN/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2012AudiR8GT SpyderN/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2011AudiR8Base5.2LV10N/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2011AudiR8Spyder5.2LV10N/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2010AudiR8Base5.2LV10N/ACylinder 1, 2, 3; orange color; fits Cyl. 1, 2, 3
2009AudiA8 QuattroL6.0LW12N/AColor-Orange; 530mm Harness
2008AudiA8 QuattroL6.0LW12N/AColor-Orange; 530mm Harness
2007AudiA8 QuattroL6.0LW12N/AColor-Orange; 530mm Harness
2006AudiA8 QuattroL6.0LW12N/AColor-Orange; 530mm Harness
2005AudiA8 QuattroL6.0LW12N/AColor-Orange; 530mm Harness

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

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.