Knock Sensor - 079905377F

Original knock sensor designed for Audi RS4 and RS5 vehicles equipped with the 4.2 FSI engine.

Factory OEM part responsible for detecting improper fuel combustion in the cylinders, protecting the powertrain unit from damage caused by knock combustion.

Technical Specifications

• Catalog number (OE): 079905377F (alternative notation: 079 905 377 F)
• Function: Knock combustion monitoring
• Condition: Original used part - 100% functional, tested, without damage
• Manufacturer: VAG OEM

Main Application

• Audi: RS4, RS5 4.2 FSI

Fitment Guarantee

Every part undergoes quality and functionality testing before shipping.

Tip: We recommend comparing the OE number with the part installed in your vehicle before placing an order.