Audi A6/Allroad/S4 Engine Knock Sensor 079905377C

OEM Part #: 079-905-377-C (079905377C)

This page covers one exact OEM part number. Every unit we stocked has sold.

The ENGINE KNOCK SENSOR (OEM Part Number: 079905377C) is a vital component located in various Audi and Volkswagen models, including the 2004-2017 Audi S4, S6, A6 Quattro, and the 2008-2014 Volkswagen Touareg with a 4.2L V8 engine. This sensor plays a critical role in monitoring engine vibrations and detecting knocking, enabling the engine control unit to adjust fuel mixture and timing for optimal performance. Common issues it resolves include poor engine efficiency and engine knocking due to wear or malfunction. It’s also referred to simply as a "sensor". This authentic OEM part ensures reliable operation and longevity, sourced directly from salvage vehicles.

Specifications

Specifications for Engine Knock Sensor 079905377C
Fits Vehicle ModelA6, Allroad, S4
Fits Vehicle MakeAudi
OEM Part No079-905-377-C (079905377C)
CategorySensors

Compatible Vehicles

Fits 15 vehicle configurations across 1 make, 2004-2008.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A6 2005-2008 · 4 variants 4 with notes
  • Allroad 2004-2005 · 2 variants
  • S4 2004-2006 · 9 variants 2 with notes
View all 15 vehicle configurations — 6 with fitment notes
Full vehicle fitment list for Engine Knock Sensor 079905377C
Year Make Model Trim Engine Note
2004 Audi Allroad Quattro Wagon 4.2L V8
2004 Audi S4 Wagon 4.2L V8
2004 Audi S4 Sedan 4.2L V8
2004 Audi S4 Convertible 4.2L V8
2005 Audi A6 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BNK
2005 Audi Allroad Quattro Wagon 4.2L V8
2005 Audi S4 Wagon 4.2L V8
2005 Audi S4 Sedan 4.2L V8
2005 Audi S4 Convertible 4.2L V8
2006 Audi A6 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BNK
2006 Audi S4 Wagon 4.2L V8 For Vehicles Where Last 6 Digits of VIN Number are Less Than 700250
2006 Audi S4 Sedan 4.2L V8 For Vehicles Where Last 6 Digits of VIN Number are Less Than 700250
2006 Audi S4 Convertible 4.2L V8
2007 Audi A6 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BNK
2008 Audi A6 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BNK

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