Facet 9.3047 Ignition Knock (Detonation) Sensor

Reliable Ignition Knock Sensor for Audi A8 Quattro and Volkswagen Phaeton

The Facet 9.3047 ignition knock (detonation) sensor is designed specifically for Audi A8 Quattro and Volkswagen Phaeton models. This sensor plays a critical role in detecting engine knock to optimize performance and protect your engine from damage.

• Compatible with Audi A8 Quattro and Volkswagen Phaeton vehicles
• Part number 9.3047 ensures precise fit and function
• Monitors engine knock to improve combustion efficiency
• Durable construction for consistent sensor performance
• Direct replacement sensor for emission control systems

Product Overview and Functionality

The Facet 9.3047 ignition knock sensor is an essential component in the emission control system of select Audi and Volkswagen models. It detects vibrations caused by engine knock or detonation, sending signals to the engine control unit (ECU). This feedback allows the ECU to adjust ignition timing, preventing engine damage and maintaining optimal fuel efficiency. Designed for the Audi A8 Quattro and Volkswagen Phaeton, this sensor meets OEM specifications to ensure reliable operation within the vehicle’s engine management system.

Common Issues Addressed by the Facet 9.3047 Sensor

• Engine knocking or pinging under acceleration
• Reduced fuel efficiency due to improper ignition timing
• Check engine light triggered by knock sensor fault codes
• Engine performance irregularities related to detonation
• Potential engine damage from undetected knock events

Installation Notes and Tips

• Ensure vehicle compatibility with Audi A8 Quattro or Volkswagen Phaeton before installation
• Disconnect the battery prior to sensor replacement to avoid electrical issues
• Locate the existing knock sensor on the engine block and remove carefully
• Use proper torque specifications when installing the new Facet 9.3047 sensor
• Clear any diagnostic trouble codes after installation to reset the ECU

Quality Assurance and Warranty Information

Facet manufactures the 9.3047 ignition knock sensor to meet stringent quality standards, ensuring durability and accurate performance. While specific warranty details may vary, Facet products typically come with a limited warranty covering defects in materials and workmanship. This sensor is engineered to provide reliable service within the emission control system of Audi A8 Quattro and Volkswagen Phaeton vehicles.